Change Default Image in Custom Control?

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  - 1
    - DataGridView CellPainting draw border when active cell I'm trying to paint a border around specific cells in a DataGridView. This works fine unless the cell becomes the active cell. When the cell becomes active the code i have in CellPainting is overwritten by some other paint routine which gets called after CellPainting. Any suggestions for a solution? Thanks! Tag: Change Default Image in Custom Control? Tag: 116340
  - 2
    - re-position of a text label Hi, I have a simple question and I can't seem to find what I want after google-ing. I create a form with size, say 800x500. I add a text label such that it is at the center (400, 50). In the form properties I set WindowState to Maximized. However, when I run the code, the text label did not automatically adjust so that it can move to the center. My question is what properties of the text label do I need to change? Thanks, TAT Tag: Change Default Image in Custom Control? Tag: 116339
  - 3
    - re-position of a text label Hi, I have a simple question and I can't seem to find what I want after google-ing. I create a form with size, say 800x500. I add a text label such that it is at the center (400, 50). In the form properties I set WindowState to Maximized. However, when I run the code, the text label did not automatically adjust so that it can move to the center. My question is what properties of the text label do I need to change? Thanks, TAT Tag: Change Default Image in Custom Control? Tag: 116338
  - 4
    - One Click Deployment FPSE? I tried to Publish my application, but I was told my website did not have FrontPage Extensions installed However, FPSE is no longer downloadable through Microsoft from what I've found. How can I get this downloaded, so I can use the Publish Feature? (also, is this what they mean by Click Once Deployment?) Tag: Change Default Image in Custom Control? Tag: 116337
  - 5
    - file io Hi, I've a requirement wherein I need to close an opened file programatically. How can I acheive it/ Thanks Vijaya Tag: Change Default Image in Custom Control? Tag: 116335
  - 6
    - Hndling Exceptions From DrapDrop Handler Hi All, How do i catch the exception that has been thrown from my DragDrop event handler. The exception is fired from the following function. private void richTextBox1_DragDrop(object sender, DragEventArgs e) { try{ ///some code....} catch(Exceptio e){ throw ex;} } I have tried with ThreadException Application.ThreadException += new ThreadExceptionEventHandler(ThreadExceptionHandler); I have also tried with Unhandled Exception handler. // Add the event handler for handling non-UI thread exceptions to the event. AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(UnhandledExceptionHandler); Both of these do not catch the exception. Can some one suggest me ? Tag: Change Default Image in Custom Control? Tag: 116332
  - 7
    - Problem with windows datagrid in .net 1.1 with tablestyle. hello All, i have following problem with datagrid, I have windows datagrid. I have one custom tablestyle applied to it.I have delete funtionality on this datagrid that when user select row by clicking on the rowheader and pressing delete on keyboard. I have confirmation over delete key press to ask user whether to delete or not row. Now the problem is when i select any row and press delete button i can see the popup and if user clcks "No" here i am rebinding the grid with same datasource but after rebinding if i click on the next row the content in the first column of previously selected row for which we have done delete get vanished. I have 2 observations 1) If we have datagrid with all above functionality but without tablestyle the problem never happen. 2) As we add tablestyle into it problem will be there. //C# code For without tablestyle. private void Form1_Load(object sender, System.EventArgs e) { for(int i=0;i<2;i++) { if(i==0) { DataColumn dc=new DataColumn(); dc.Caption="Name"; dc.ColumnName="Name"; dc.MaxLength=50; dt.Columns.Add(dc); } else { DataColumn dc=new DataColumn(); dc.Caption="Age"; dc.ColumnName="Age"; dc.MaxLength=50; dt.Columns.Add(dc); } } createRow(); //myGrid1.TableStyles.Add(AddTableStyle()); myGrid1.DataSource=dt; } private void createRow() { DataRow dr=dt.NewRow(); dr[0]="Ashish"; dr[1]="25"; dt.Rows.Add(dr); DataRow dr1=dt.NewRow(); dr1[0]="Tee"; dr1[1]="25"; dt.Rows.Add(dr1); DataRow dr2=dt.NewRow(); dr2[0]="Helllo"; dr2[1]="25"; dt.Rows.Add(dr2); } private void myGrid1_RowDelete() { MessageBox.Show("You can't delete this row"); myGrid1.DataSource=null; myGrid1.DataSource=dt; } private DataGridTableStyle AddTableStyle() { DataGridTableStyle ts=new DataGridTableStyle(); ts.MappingName=dt.TableName.ToString(); for(int y=0;y<dt.Columns.Count;y++) { DataGridTextBoxColumn col=new DataGridTextBoxColumn(); col.MappingName = dt.Columns[y].ColumnName; col.HeaderText = dt.Columns[y].ColumnName; col.Width = 150; col.TextBox.MaxLength=50; ts.GridColumnStyles.Add(col); } return ts;; } //C# code with tablestyle private void Form1_Load(object sender, System.EventArgs e) { for(int i=0;i<2;i++) { if(i==0) { DataColumn dc=new DataColumn(); dc.Caption="Name"; dc.ColumnName="Name"; dc.MaxLength=50; dt.Columns.Add(dc); } else { DataColumn dc=new DataColumn(); dc.Caption="Age"; dc.ColumnName="Age"; dc.MaxLength=50; dt.Columns.Add(dc); } } createRow(); myGrid1.TableStyles.Add(AddTableStyle()); myGrid1.DataSource=dt; } private void createRow() { DataRow dr=dt.NewRow(); dr[0]="Ashish"; dr[1]="25"; dt.Rows.Add(dr); DataRow dr1=dt.NewRow(); dr1[0]="Tee"; dr1[1]="25"; dt.Rows.Add(dr1); DataRow dr2=dt.NewRow(); dr2[0]="Helllo"; dr2[1]="25"; dt.Rows.Add(dr2); } private void myGrid1_RowDelete() { MessageBox.Show("You can't delete this row"); myGrid1.DataSource=null; myGrid1.DataSource=dt; } private DataGridTableStyle AddTableStyle() { DataGridTableStyle ts=new DataGridTableStyle(); ts.MappingName=dt.TableName.ToString(); for(int y=0;y<dt.Columns.Count;y++) { DataGridTextBoxColumn col=new DataGridTextBoxColumn(); col.MappingName = dt.Columns[y].ColumnName; col.HeaderText = dt.Columns[y].ColumnName; col.Width = 150; col.TextBox.MaxLength=50; ts.GridColumnStyles.Add(col); } return ts;; } How can i i prevent value to be vanished in datagrid with tablestyle. Tag: Change Default Image in Custom Control? Tag: 116331
  - 8
    - Out alignment on UI windows form using .net 1.1 Hi, I've window form application using vb .net 1.1, deployed on 20 PCs was ok. Found only 1 pc has problem on UI. Please have a look at https://dynbms.sslpowered.com/dynbms.com/images/samples/problem1.JPG https://dynbms.sslpowered.com/dynbms.com/images/samples/problem2.JPG It looks textbox out of form. Does it because of VGA driver or any advice please? Thank you very much. Adhie Tag: Change Default Image in Custom Control? Tag: 116330
  - 9
    - DataGridView column sorting glyph not shown Hello, I am using a DatGridView in virtual mode and unbound data where i listen for CellValueNeeded events to fill the grid with data. I also want to sort the data by pressing on the columns which is why i listen to ColumnHeaderMouseClick as well. It works fine, but the problem is that the sorting glyph (i.e. the sorting order triangle image) is not visible on the column header if the column size is too small. I have tried all the AutoFill options available for the column size/width but none of them seem to be working. The sorting glyph "length" is simply ignored and column width is not adapted to include to glyph (i have to manually resize the column size to see the glyph). Is there any automatic way of handling this or do i have to calculate the column width manually by taking into consern the column header text length, font size and so on? Tag: Change Default Image in Custom Control? Tag: 116329
  - 10
    - TypeConverter for object type Properties I have a property with a member of type object. I am showing the value of this property in a PropertyGrid but depending on the type of the object I want to use the correspondant TypeConverter. Here is an example of what I mean: public byte[] Test { get { return new byte[100]; } } public object Test2 { get { return new byte[100]; } } If I have both properties in a property grid, Test will be shown as an expandable item with the text "Byte[] Array".. if I expand the item I will be able to see all of the elements in the array. However, Test2 will only show the text "System.Byte[]" and I will have no way of reading the elements of the array. Of course the property of type object will not always contain a byte[]. How can I provide the standard functionality for each type? Thanks Tag: Change Default Image in Custom Control? Tag: 116328
  - 11
    - modifying the windows logon dialog I need to somehow modify the windows login dialog. I've seen other applications do this such as http://www.tools4ever.com/products/self-service-reset-password-management/ My needs are similar but slightly different. Can this be done in dot net? I prefer to do it in dotnet, but I can do it in other languages likc c++ if anyone can point me to some resources to help get me started. Tag: Change Default Image in Custom Control? Tag: 116325
  - 12
    - Cascade non-MDI Forms I have code that cascades multiple forms that belong to my application. They are not MDI so my understanding is that the accepted method is to call CascadeWindows in user32.dll and use the desktop as the owner window. The problem is that it's un maximizing all other windows regardless of whether or not I pass their window handles to the method. Is there another way to do the cascade that doesn't have this side effect? I know I could just change all the locations. But it's the algorithm for determining the window size and z-order that I'm not yet comfortable re-writing. Any help is appreciated. Thanks, Brian Tag: Change Default Image in Custom Control? Tag: 116324
  - 13
    - Controls in TablelayoutPanel not getting arranged properly Hi, I am programmatically creating a TableLayout panel with 8 columns and 21 rows . Within the cell I am placing some labels and checkboxes . Then I dynamically add more rows , by calling my function UpdateTable( ). private TableLayoutPanel tb = new TableLayoutPanel (). private void UpdateTable( ) { tb.SuspendLayout() ; tb.GrowStyle = TableLayoutPanelGrowStyle.AddRows; // assume LastRowCount = 21 , as I have added 21 rows earlier // hence I increment LastRowCount in the for loop initialization for( int i = LastRowCount+1 ; i< 20 ; i++ tb.RowStyles.Add( myRowStyle ); tb.ResumeLayout(false ); } Strangely enough the following things happen 1) Calling UpdateTable() for the first time - Only one row gets added ; 2) Calling UpdateTable () for the second time - The checkboxes are getting redrawn in DIFFERENT positions ... which is not desired . For the second one, I think pending layouts are getting performed intenally by the layout engine ... Can anyone help me in getting answers to these problems . Thanks in advance , Sujay -- Sujay Ghosh Bangalore, INDIA Tag: Change Default Image in Custom Control? Tag: 116322
  - 14
    - Can't get ComboBox to show that it has focus I have a WinForm with many text boxes and several combo boxes. I also have a toolstrip with cut, copy, and paste icons. When a user clicks one of the buttons (cut/copy/paste), I want to get the current active control and if it is a textbox or a combobox, to then copy the selected text to the clipboard (or do the appropriate option based on the button). I can get all of this to work just fine with the textboxes. To figure out the active control, I am using the GetFocus() pointer from "user32.dll". This is the only way I could find to do what I needed to do. Below is an example of how my code looks. [DllImport("user32.dll")] public static extern IntPtr GetFocus(); private void btnCopy_Click(object sender, EventArgs e) { FocusControl = Control.FromHandle(GetFocus()); if (FocusControl != null) { if (FocusControl.GetType().ToString() == "System.Windows.Forms.TextBox") { TextBox myTextBox = (TextBox)FocusControl; if (!string.IsNullOrEmpty(myTextBox.SelectedText)) { Clipboard.SetText(myTextBox.SelectedText); } } else if (FocusControl.GetType().ToString() == "System.Windows.Forms.ComboBox") { ComboBox myComboBox = (ComboBox)FocusControl; Clipboard.SetText(myComboBox.SelectedText); } } } This works great for textboxes, but if the focus is on a combobox, the FocusControl object is null, so it doesn't fall into the if statement. I've tried using the ActiveControl method, but couldn't figure out how to drill down to the actual control that had focus. All it gave me back was the control that the textbox was on, not the actual textbox control. I'm sure I could iterate through each child control, but I figured there had to be an easier way. Any help would be greatly appreciated. Tag: Change Default Image in Custom Control? Tag: 116320
  - 15
    - Unable to choose Tab Feature Hello...I just installed IE7. I am running WinXP SP2. I am not able to open a "New Tab", this feature is grey-shaded in the File dropdown toolbar. I am only able to choose "New Window" feature. Does anyone know of this problem? Can this be fixed? -- reg Tag: Change Default Image in Custom Control? Tag: 116319
  - 16
    - How to write IExtenderProvider control for .NET CF? Hi, I searched all over the net and I can't find no info how to do this, other then this post http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=158930&SiteID=1. I would like to rewrite this example http://msdn2.microsoft.com/en-us/library/system.componentmodel.iextenderprovider.aspx for Compact Framework, and I would like to do it VS2005 way. VS2005 suggests to use .xmta file which will produce *.PocketPC.asmmeta.dll file. The article I found also suggests to create yet another library where the designer would be. Does this mean that now instead of distributing two libraries (one for runtime one for design time) I have to distribute three (an extra *.PocketPC.asmmeta.dll)? I have a hard time to believe it. Can anyone shed some information on this? Thank you. Rastio. Tag: Change Default Image in Custom Control? Tag: 116318
  - 17
    - Web timesheet 100$ for unlimited users Web timesheet 100$ for unlimited users Source code is available in just US$250 by http://www.livetecs.com TimeLive Web timesheet suite is integrated suite for time record, time tracking and time billing software. The TimeLive suite of products deliver a time tracking solution for professional service providers. Each of our products has been designed to meet the time tracking needs of specific segments of the service provider market, including both time tracking and time and billing applications. TimeLive on-demand timesheet solution helps organizations eliminate the paperwork and manual processes associated with time collection. TimeLive is available in two different flavors. Hosted version and downloadable version. Downloadable version required certain system requirement to install on local server. Whereas hosted version is already installed on our fully managed server on state of art datacenter. Free Lite version is available in both hosted and installable version. Here are some key features of "TimeLive": Online TimeSheet ------------------- - Track your contractor and employee's timesheet using full featured and easy to use Time Entry tool. You can then use detailed and summarized view of all time records using different tools. - Time Entry Day View for entering full day timesheet in just one server hit. - Time Entry Week View for entering full week timesheet in just one server hit. - Organization setup like Departments, Locations, Roles - Different type of Off day monitoring like Sick Days, Vacations etc. - Client Setup with multiple client contacts and departments. - Project Setup - Task setup with multiple assignees for single task. - Audit Trail - EMail notification of different timesheet related activities to users. - Different billing type setup like Hourly / Task based / Call based - Timesheet approval - Customizable Timesheet Approval Paths (None,Administrator,Project,TeamLead, External User (Client)) - Reports with all possible filter selection to get your required output. - Detail Timesheet Report - Different timesheet summary reports for based on Client, Project, Employee, Date - Timesheet Approval status report - Reminders to employee for their pending entries. - Role wise billing rates. Billing ------- - Different billing rate pick option like employee own billing rate, role based billing rate, project specific billling rate. - Billing rate history - Billable / non billable hour tracking - Different billing related reports Expenses Tracking ------------------ - Manage and monitor your project expenses with easy to use integrated TimeLive Expense management tools. - Expense entry view for employee to enter their expenses occurred on project. - Billable / Unbillable expenses. - Detail Reports for monitoring expenses - Different summarize report by Project / Employee / Expenses. - Customizable Approval of Expenses with different approval options. -- Team Lead -- Project Manager -- Administrator. -- Client (External User) - Expenses approval monitoring. Project Monitoring --------------------- - Full featured tool to manage your projects and their task with single integrated tool. - Nested Task with task hierarchy. - Tracking of project status - Assigning of projects to multiple employee - Tracking of project tasks - Different dashboard view for Project Manager, Team Lead and Team Member. - Different report to track and monitor overall project status. Attendance ------------ - Web based Attendance system to record and monitor all employee attendance using simple / fully featured tool. - Time In - Time Out - Off Day reporting for different purpose like Sick leave, vacation etc - Working Day setup - Daily Attendance report - Summary reports for employee off days to track employee Sick leave,vacation etc. - Detail report employee off days. Other Features ---------------- - Exportable reports in Word, PDF and XLS file. - Downloadable / Hosted version - Free full featured basic version upto 5 users - Unlimited disk space for all plans - International date formats supported. - Role based security. - Multiple currency support. - Fully customizable UI with ability of changing company logo. Developed in ASP.Net 2, Microsoft ASP.Net Ajax 1.0, SQL Server 2005 Tag: Change Default Image in Custom Control? Tag: 116317
  - 18
    - Best practice for saving objects owned by objects Let's say that I have a class called Customer and a class called CustomerAddress. Now, further suppose that the Customer class has a property called _CustomerAddresses, which is List(Of CustomerAddress). Now, there's a form to edit a Customer, on which the user can click on a SAVE button to save changes, or on a CANCEL button to cancel any changes that they have made. In addition, on the Customer form, the user can make changes to the different CustomerAddress's that belong to the Customer (i.e. add, edit, remove). A separate form is used for adding or editing a CustomerAddress. For example, the user could select a CustomerAddress, in a grid, and then click on an EDIT button, at which point the Customer Address form is shown modally. On the Customer Address form, the user can also click on SAVE or CANCEL. Now, here's where the question comes in. The way that I am implementing this is that, if the user clicks on CANCEL for the Customer, any adds, edits, or deletes of CustomerAddress records associated with that Customer are disregarded/discarded. Is this the "usual" way to implement functionality like this? Tag: Change Default Image in Custom Control? Tag: 116315
  - 19
    - ApplicationURI is null Linda, Joe said that he had already selected the "Allow URL parameters to be passed to application" option before publish. I'm having the same problem. I'm not trying to use the URL parameters - I just want to get the deployment URL. I've selected the "Allow URL parameters to be passed to application" option, but the ApplicationURI is still null. Any suggestions? Thanks. -Matt Tag: Change Default Image in Custom Control? Tag: 116313
  - 20
    - Problems with UNICODE Characters for superscript 4,5,6,7,8,9 Hi, We have an application that has its own character map. Everything is working fine until yesterday. We got a new requirement which was to add superscript numbers from 0-9. Numbers 1,2,3 are display correctly. The issue is the 0, 4-9. With those characters I got the square on my Rich Text Box. The funny thing is, if I copy/paste one of them from Windows Character Map, after that all character will work using our character map. The way I'm passing the characters from our C.M to the Rich Text Box is the follow: Clipboard.SetText(CType(sender, UIButton).Text, TextDataFormat.UnicodeText) and Me.m_CurrentRTB.Text = Clipboard.GetData(System.Windows.Forms.DataFormats.UnicodeText) Does anyone had this issue before? Thanks for the help Alonso Tag: Change Default Image in Custom Control? Tag: 116312
  - 21
    - Databinding to a Custom Control's Textbox I have a custom control that comprises of a label and a textbox. I have added the Design Time Properties for the designer to select the DataSource and DataMember, those seem to work fine at Design Time. But at Run Time the TextBox remains empty. How do I "Wire Up" the DataSource/Datamember so that the data shows in the TextBox? This is the portion of the code Im using to set the DataMember/Source properties: [Editor("System.Windows.Forms.Design.DataMemberListEditor,System.Design, Version=2.0.0.0, Culture=neutral,PublicKeyToken=b03f5f7f11d50a3a", typeof(System.Drawing.Design.UITypeEditor))] public string DataMember { get { return m_DataMember; } set { m_DataMember = value; } } [AttributeProvider(typeof(IListSource))] public object DataSource { get { return m_DataSource; } set { m_DataSource = value; } } Thank you for any help or tutorials on the subject! Ron Tag: Change Default Image in Custom Control? Tag: 116311
  - 22
    - Start a thread and forget about it? Hi, Is it OK to start at thread so it does its work, and just forget about it. Will it automatically dissapear when it is done? For exampel, like this: Thread t = new Thread(ReportingForm.StartProcessingReports); t.SetApartmentState(ApartmentState.STA); t.Start(); No Join or anything like that. regards Carl Tag: Change Default Image in Custom Control? Tag: 116306
  - 23
    - TableLayout Panel - Adding multiple controls in a particular cell Hi, I want to add multiple controls in a TableLayout Panel , say location 1,1 . But MSDN tells that there can be only one child control in each cell . I referred Petzold's book, and he says it can be done by using SetCellPosition( ) but it does not guarantee that the controls shall be placed . Is there any way I can put an array of child controls within each particular cell . Thanks in advance , Sujay -- Sujay Ghosh Bangalore, INDIA Tag: Change Default Image in Custom Control? Tag: 116305
  - 24
    - Priniting to File With a Dynamic FIle Name I need to print to disk with a dynamic output filename. I have read some material that would seem to indicate that the way to do this is to use the Microsoft defined DOCINFO structure and the StartDoc function in the Win32 API. I have checked my Win32 API Bible and found no such reference. Q.1 - Is this the best approach? Q2 - What would the code look like? Tag: Change Default Image in Custom Control? Tag: 116303
  - 25
    - Document.GetElementsByTagName(...) returns no elements I have C# .NET 2.0 code that behaves incorrectly only when run on one Windows Server 2003 (32 bit) machine with .NET 2.0 installed. And then, only the first time. And then, only when run from a CDrom. It will not fail on the local disk or network share. I have a WindowsForms application with a WebBrowser class on a form. In the DocumentCompleted event, I do... HtmlElementCollection divTags = webBrowser1.Document.GetElementsByTagName("div"); These documents are static docs loaded from the application directory. The document which has the DIV tag is loaded and the collection shows a count of zero the first time it is run on this machine from a CDrom. After that, it finds the DIV tag everytime. If I reboot, we are back to not finding it the first time. Right before the GetElementsByTagName() method, I dumped the Document.Text to the log file - indeed, there is the DIV tag. Any ideas? Tag: Change Default Image in Custom Control? Tag: 116300
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  - 1
    - WPF Data binding & Threading Dear reader, Im having a threading problem using WPF data binding on a custom dependency object with a clr object as data source and trying to update the data source from another execution context. The data source consists out of a simple class which implements the INotifyPropertyChanged interface. <code> // The clr object used as a data source. public class MyDataSource : INotifyPropertyChanged { private string _data; public MyDataSource(string info) { _data = data; } public string Data { get { return _data; } set { _data = value; this.NotifyPropertyChanged(value); } } private void NotifyPropertyChanged(string data) { if (this.PropertyChanged != null) { this.PropertyChanged(this, new PropertyChangedEventArgs(data)); } } public event PropertyChangedEventHandler PropertyChanged; } </code> The custom dependency object exposes one dependency property which I want to bind to the Data property of the data source. Below the code for illustration: <code> // the custom dependency object. public class MyCustomObject : DependencyObject { public static readonly DependencyProperty DataProperty = DependencyProperty.Register("DataProperty", typeof(String), typeof(MyCustomObject), new PropertyMetadata(String.Emoty, new PropertyChangedCallback(OnPropertyChanged))); public static void OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { MyCustomObject obj = (MyCustomObject) d; Console.WriteLine(String.Format("Property '{0}' changed; OldValue '{1}', NewValue '{2}'.", e.Property.Name, e.OldValue, e.NewValue)); } public MyCustomObject() { } public string Data { get { return (string)this.GetValue(DataProperty); } set { this.SetValue(DataProperty, value); } } } </code> And finally the binding definition: <code> MyDataSource dataSource = new MyDataSource("Hello World!"); MyCustomObject customObj = new MyCustomObject(); Binding binding = new Binding("Data"); binding.Mode = BindingMode.OneWay; binding.Source = dataSource; BindingOperations.SetBinding(customObj, MyCustomObject.DataProperty, binding); ... // Causes the dependency property to change. dataSource.Data = "Greetings World!"; </code> The above code works fine. But when I try to update the "dataSource" object from a WCF service callback (duplex mode) it doesn't update the dependency property. I think it as something to do with the execution context being different. Can anybody shed some light on this matter and explain me why this binding doesn't work this way and maybe come up with a solution. I'm running the above code within a console application (STA) compiled with the .NET Framework 3.5 version in Visual Studio 2008. Kind regards, Alex Koning. Tag: Change Default Image in Custom Control? Tag: 116299
  - 2
    - Autoexit of textbox I would like to create an autoexit of a textbox when the number of character entered is equal to the maximum length. Is there a way I can programmatically add a Tab key into my own form? The next field that I need to goto may or may not be a readonly field, depending what kind of transaction the person tries to enter. -- Arne Garvander Certified Geek Professional Data Dude Tag: Change Default Image in Custom Control? Tag: 116298
  - 3
    - Drag & Drop - multiple controls I've recently migrated from VB.NET to C# and have 3 questions about drag/drop differences between the two languages... Question 1) I'm tweaking a C# app (DotNet 2.0) to support file drag/drop. I have 2 textboxes with Browse lookups, but I realized some users prefer to drag drop files from folders on the desktop. The examples I've seen are for 1 drop location on the windows form. Are there any examples of implementing drag/drop for multiple controls? Question 2) Take a look at the following function header: private void txtFileToProcess_DragDrop(object sender, System.Windows.Forms.DragEventArgs e) { //my code here... } What ties this function as the handlerto the txtFileToPRocess control? Question 3) How do I add event handlers on the fly? This was trivial in VB.NET; you simply selected the control (in the dropdown), then the event (in an adjoining dropdown). Thanks, Tag: Change Default Image in Custom Control? Tag: 116297
  - 4
    - Popup window on top of another popup Hi guys, I have a grid editor, with cells (DevExpress). I have a custom cell edit, which contains two other edits. When I click the cell, I get the first popup edit. When I click the other controls contained in this popup, another window pops up. The problem is that the moment I click inside the second popup, the first one disappears, and as a consequence, the second one disappears too. Is there a way to keep the first popup visible, while the second one is editing? Thanks in advance, Cosmin Tag: Change Default Image in Custom Control? Tag: 116296
  - 5
    - DoEvents for a specific thread? Hi, I have a thread (not the main) in my app that draws GUI. It's a STA-thread, and it seems OK. Though I would like to process its message queue, like Application.DoEvents (for the main thread). It should have a message queue since it draws GUI. How do I "do a DoEvents" for a specific thread? regards Carl Tag: Change Default Image in Custom Control? Tag: 116290
  - 6
    - Different Image for Control I've built a control that will be placed in the VS.Net 2005/2008 toolbox, but it shows up with a default image that's not too attractive. What can I do, in order to add my own image? Tag: Change Default Image in Custom Control? Tag: 116284
  - 7
    - subscribing to events in controls in a separate window in another window ? < .NET 2.0, VS Studio 2005 Ent., Win XP Pro SPII, all .NET Frameworks from 1.0 to 3.5 installed > ... note : normally I do not cross-post, but I felt this scenario justified sending to both the controls and windowsforms groups ... Hi, 1. Main form creates other top-level winform windows at run-time (new window parent == null) from a pre-defined form template as : secondaryFormTemplate newSForm = new secondaryFormTemplate(); // set formborderstyle, set to topmost, toplevel, etc. newSForm.Show; 2. On each secondary winform you create there is treeview (which has public accessor); you subscribe to the After_Select event of each Treeview IN THE MAIN FORM with the same event handler in the main form like so : newSForm.myTreeView.After_Select += new System.Windows.Forms.TreeViewEventHandler(secondaryTVHitHandler); 3. so the handler for all secondary treeview selection in the main form looks something like this : private void secondaryTVHitHandler(object sender TreeViewEventArgs e) { // do whatever, get the node from e.Node, etc. } This compiles okay, seems to work okay most of the time, but once in a while it appears that node selections in some of the secondary windows are not reported to the subscriber in the main form. So, I switched back to the more "classic" paradigm of having the secondary form template implement an After_Select event which raises a public event, which I then subscribe to in the main Form. Intermittent problems of some selection events went away. My question is : were the glitches I observed using the first technique possibly a result of threading problems involving separate independent top-level winforms ? Another hypothesis : the .net TreeView (now, like me, so long in the tooth :) is, as we all know, a wrapper around a COM control ... issues related to COM ? My sense is that it is "best practice" to have objects raise public events from their own internal private events, rather than have "alien objects" subscribe directly to events of objects, but in the case where the secondary objects (winforms in this case) are being created at run-time by a "master object" it is "tempting" to just subscribe to their events there. Appreciate any comments, recommendations, insights ! best, Bill Woodruff dotScience Chiang Mai, Thailand Tag: Change Default Image in Custom Control? Tag: 116282
  - 8
    - Where can I find a list of the sequence of events that a vb.net form goes through... when the executable is first run? Where can I find a list of the sequence of events that a vb.net form goes through... when the executable is first run? (Before the user has moved/clicked/typed anything). What order do these happen: load, active, validate, paint, resize, shown, etc (And all the others.) I'm trying to run some of my own code just BEFORE the form is shown.... (but AFTER Load() has happened). Thanks. Tag: Change Default Image in Custom Control? Tag: 116278
  - 9
    - Overriding dataset connection Hi I have a windows form app with one master table and several details (grids). As I am filling both the master and details using vs 2005 generated dataset and data adapters, there are multiple connection open/close during the whole operation (one connection open/close per adapter fill). Is there a way to override the vs generated connection management code to open the connection only once at start, do all fills and then close the connection at the end, to speed up the whole fill process? As dumping the vs 2008 dataset altogether will involve too much code writing, I am reluctant to let go of it and would prefer to only override the connection management if I can. Many Thanks Regards Tag: Change Default Image in Custom Control? Tag: 116272
  - 10
    - Problem Drawing in a ListBox Subclass Good afternoon, everyone. I've subclassed ListBox to draw an icon next to each line, and it works! Except for one thing... when drawing items, it seems that SelectedItems and SelectedIndices is not perfectly current. This means that if I use it to draw, in some cases I may draw an item highlighted when it shouldn't be, or vice-versa. This mostly happens when dragging to select multiple entries. My temporary solution is to force a Refresh after every SelectionChanged event, but this makes the list less responsive. Basically, I'd like it to paint just like a normal listbox. So far I've only used this with an extended multi-select list box. This is the relevant code in my subclass: // Constructor: ... DrawMode = DrawMode.OwnerDrawFixed; DrawItem += Draw; SelectedIndexChanged += SelectionChange; ... // Handlers: protected void Draw(object sender, DrawItemEventArgs args) { args.DrawBackground(); int row = args.Index; Graphics graphics = args.Graphics; Rectangle bounds = args.Bounds; if (row != -1) { object item = Items[row]; // Draw the icon, if any Image icon = GetIconForItem(item); if (icon != null) graphics.DrawImage(icon, bounds.Location); // Draw the text, if any string text = item.ToString(); if (text.Length > 0) { int textHeight = Font.Height; int offSet = (ItemHeight - textHeight) >> 1; Brush brush = new SolidBrush(SelectedItems.Contains(item) ? SystemColors.HighlightText : ForeColor); graphics.DrawString(text, Font, brush, ICON_SIZE + 1.0F, (float)(bounds.Top + offSet)); } } args.DrawFocusRectangle(); return; } protected void SelectionChange(object sender, EventArgs args) { Refresh(); return; } Any ideas from the Windows Forms gurus? Thanks! Tag: Change Default Image in Custom Control? Tag: 116270
  - 11
    - Draw PDF onto GDI+ Surface I have a WinForm application. I would like to be able to read a PDF, and draw it onto the GDI+ drawing surface, along with other commands that I would draw on the surface, to then print it. This can be done with a WMF file, so one option is to preconvert the PDF to WMF, but I would to read the PDF directly, if that is possible? Thanks. Tag: Change Default Image in Custom Control? Tag: 116264
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    - Update other GUI via BackgroundWorker thread? Hi, I know that you should not update the applications GUI with code running in the BackgroundWorker thread (or any other thread). But is it OK to construct, show and update new Forms inside the thread? The difference I'm trying to point out is that you don't update any existing GUI, but instead, create (of example) a new small form with a progress indicator, OK? regards Carl Tag: Change Default Image in Custom Control? Tag: 116262
  - 13
    - Insert key How can I put a textbox in overtype mode? Using the insert key on a webform works fine, but it does not do anything on a winform textbox. -- Arne Garvander Certified Geek Professional Data Dude Tag: Change Default Image in Custom Control? Tag: 116239
  - 14
    - Numeric textbox How can a write a filter for a textbox that only accepts numeric input? I tried the maskedTextBox, but i did not like it. -- Arne Garvander Certified Geek Professional Data Dude Tag: Change Default Image in Custom Control? Tag: 116238
  - 15
    - Need advice on a similar control to tablelayoutpanel! Hello There, I'm looking for a control exactly like TableLayoutPanel but it needs to support resizing cells by mouse on run-time (It's so sad that this control supports this feature in design-time but not in run-time). Does anybody know any enhanced TableLayoutPanel control or a third party similar control? Thanks, Özden Tag: Change Default Image in Custom Control? Tag: 116234
  - 16
    - .NET Mass Downloader Version 1.2 Released We have improved the proxy support and added more samples of usage for 2005 , 2008 and Visual Studio Express Editions. You can get your copy from http://www.codeplex.com/netmassdownloader .NET Mass Downloader Welcome to the .NET Mass Downloader project. While it's great that Microsoft has released the .NET Reference Source Code, you can only get it one file at a time while you're debugging. If you'd like to batch download it for reading or to populate the cache, you'd have to write a program that instantiated and called each method in the Framework Class Library. Fortunately, .NET Mass Downloader comes to the rescue! Using .NET Mass Downloader Open a command or PowerShell prompt and navigate to where you extracted the current release. The tool itself is NetMassDownloader.exe and when run without parameters shows the following help screen: .Net Mass Downloader 1.0.0.0 - (c) 2008 by Kerem Kusmezer, John Robbins Batch download the Microsoft .NET Reference Source code. Usage: NetMassDownloader [-file <file>] [-directory <directory] [-output <directory>] [-vsver <version>] [-force] [-nologo] [-verbose] [-?] -file - Download an individual file's PDB and source code. You can specify multiple file parameters. (Short -f). -directory - Download all the found PDB and source code for all files in the specified directory. You can specify multiple directory parameters (Short -d). -output - The output directory for PDB and source files. The default directory is the cache directory set in Visual Studio 2008. By using the cache directory, you'll have the PDB and source files available to Visual Studio 2008. However, to use the .NET Reference Source Code with VS 2005, use the - output switch and in the Options dialog, Debugging, Symbols property page, add the specified output directory to the "Symbol file (.pdb) locations." Also, add the directory to the Solution Properties, Common Properties, Debug Source Files, Directories containing source code location. The Visual Studio 2005 debugger will automatically load the source code. (Short -o) -vsver - The Visual Studio version number to use for finding the cache directory. The default is Visual Studio 2008, but if you want to use the cache directory for Visual Studio 2005, you would pass '-vsver 8.0' (without quotes) (Short -vs) -force - If specified, forces the downloading the PDB files into the symbol server. When downloading to a symbol server if the PDB exists, it's not downloaded. Using the -output switch will always download and process the PDB. (Short -fo) -nologo - Don't show the logo information. (Short -n) -verbose - Do verbose output. May be worth turning on as the downloading source code can take a long time. (Short -v) -? - This help message. The only required arguments are -file or -directory, both of which can be specified as many times as you'd like. When you specify a directory, only the .DLL and .EXE files from that directory will be processed. If you wanted to download all the source code from binaries in the .NET 2.0 32-bit and 64-bit directories, the command line you'd pass is: -d C:\Windows\Microsoft.NET\Framework\v2.0.50727 -d C:\Windows \Microsoft.NET\Framework64\v2.0.50727. The main purpose of Net Mass Downloader is to populate the source code download cache for debugging, the default download location is the cache you specified to Visual Studio 2008. The -vsver switch to account for future Visual Studio versions so Mass Downloader could work with future CTPs and versions. While it's great to see the .NET Reference Source Code in Visual Studio 2008, there are a lot of developers out there who can't upgrade yet, but would love to be able to debug into the .NET Reference Source Code. If you specify the -output parameter, the PDB and .NET Reference Source Code will be written to the specified directory. In Visual Studio 2005, place that directory in the Options dialog, Debugging, Symbols property page. In the "Symbol file (.pdb) locations" list box as the first item. Also in the Options dialog, Debugging, General property page, uncheck "Require source files to exactly match the original version." Finally, in each Visual Studio 2005 project go into the solution property pages, Common Properties, Debugging Source Files, and in the "Directories containing source code" add the output directory to the top of the list. That's enough for Visual Studio 2005 to debug into the .NET Reference Source Code. When you first run Net Mass Downloader, you will be prompted with the current EULA for accessing the source code. If you don't agree with the Microsoft EULA, clicking the Decline button will not download the source code. The code download includes a detailed documentation about whole steps required to use it with VS2005 If none of the files can be downloaded please download and install the rtm version of the RTM Version of the .NET Framework 3.5 According to the Shawns Blog The Following Dll Are Enabled For Now: Mscorlib.DLL System.DLL System.Data.DLL System.Drawing.DLL System.Web.DLL System.Web.Extensions.DLL System.Windows.Forms.DLL System.XML.DLL WPF (UIAutomation.dll, System.Windows.DLL, System.Printing.DLL, System.Speech.DLL, WindowsBase.DLL, WindowsFormsIntegration.DLL, Presentation.dll, some others) Microsoft.VisualBasic.DLL But our framework supports additional versions without update if microsoft doesn't change the download engine. The original framework anouncement can be found here: Shawns Announcement Acknowledgements Thanks to the Developer Division at Microsoft. First they released the .NET Reference Source Code, and second for allowing a couple of developers to have some fun and provide a utility for the community. Thank you for using .NET Mass Downloader. We just ask that you log any bugs and features into the project Issue Tracker. Contact Information You can reach us via the discussions or you can directly mail me at keremskusmezer@gmail.com Development Details If you have questions about particular pieces of the code, Kerem Kusmezer did the following parts: the PE (Portable Executable) Parser, the PDB Parser, the Webclient Class. and the SrcSrv class. John Robbins did the console driver, testing, and served as Kerem's code monkey. Tag: Change Default Image in Custom Control? Tag: 116233
  - 17
    - Invisible MessageBox? On grid DoubleClick I call MessageBox.Show to display some information. The instruction will be executed but the dialog box is nowhere on the screen!!. The main application is now disabled, pressing ESC "closes" invisible dialog box and focus returns to the application. I added a button and on Click I do what DoubleClick should and all is OK. How the hell MessageBox can be invisible or outside the screen? MH Tag: Change Default Image in Custom Control? Tag: 116232
  - 18
    - Dynamic Menus + Click Event Hello, I am trying to create a contextmenustrip with drop downs dynamically. I have everything visually working. Each menu appears across the screen as well as each of their corresponding sub (drop down) menus. My problems has become that I need to put some sort of onclick event on these drop down items so that they actually do something. I can't for the life of me figure out how to do this. Any advice? Please help ! I have posted my code below. Private fruitContextMenuStrip(30) As ContextMenuStrip Private fruitToolStripDropDownButton(30) As ToolStripDropDownButton Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'DataSet11.tblProcessStepType' table. You can move, or remove it, as needed. Me.TblProcessStepTypeTableAdapter.Fill(Me.DataSet11.tblProcessStepType) 'TODO: This line of code loads data into the 'DataSet11.tblProcessStep' table. You can move, or remove it, as needed. Me.TblProcessStepTableAdapter.Fill(Me.DataSet11.tblProcessStep) ' This code example demonstrates how to handle the Opening event. ' It also demonstrates dynamic item addition and dynamic ' SourceControl determination with reuse. Dim strMenu1(30) As String Dim i As Integer Dim dr As DataRow Dim dr2 As DataRow For Each dr In Me.DataSet11.tblProcessStep.Rows dr2 = Me.DataSet11.Tables.Item("tblProcessStep").Rows(i) strMenu1(i) = dr2("ProcessStep") i = i + 1 Next For i = 0 To UBound(strMenu1) If strMenu1(i) <> "" Then fruitContextMenuStrip(i) = New ContextMenuStrip() End If Next ' Create a new ContextMenuStrip control. 'fruitContextMenuStrip = New ContextMenuStrip() ' Attach an event handler for the ' ContextMenuStrip control's Opening event. For i = 0 To UBound(strMenu1) If strMenu1(i) <> "" Then AddHandler fruitContextMenuStrip(i).Opening, AddressOf cms_Opening End If Next ' Create a new ToolStrip control. Dim ts As New ToolStrip() ' Create a ToolStripDropDownButton control and add it ' to the ToolStrip control's Items collections. For i = 0 To UBound(strMenu1) If strMenu1(i) <> "" Then fruitToolStripDropDownButton(i) = New ToolStripDropDownButton(strMenu1(i), Nothing, Nothing, strMenu1(i)) End If Next For i = 0 To UBound(strMenu1) If strMenu1(i) <> "" Then ts.Items.Add(fruitToolStripDropDownButton(i)) End If Next ' Dock the ToolStrip control to the top of the form. ts.Dock = DockStyle.Top ' Assign the ContextMenuStrip control as the ' ToolStripDropDownButton control's DropDown menu. For i = 0 To UBound(strMenu1) If strMenu1(i) <> "" Then fruitToolStripDropDownButton(i).DropDown = fruitContextMenuStrip(i) End If Next ' Add the ToolStrip control to the Controls collection. Me.Controls.Add(ts) End Sub Sub cms_Opening(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Dim strMenu(2, 30) As String Dim strMenu2(2, 30) As String Dim i As Integer Dim j As Integer Dim dr As DataRow Dim dr2 As DataRow i = 0 For Each dr In Me.DataSet11.tblProcessStep.Rows dr2 = Me.DataSet11.Tables.Item("tblProcessStep").Rows(i) strMenu(0, i) = dr2("ProcessStep") strMenu(1, i) = dr2("P_ProcessStepID") i = i + 1 Next i = 0 For Each dr In Me.DataSet11.tblProcessStepType.Rows dr2 = Me.DataSet11.Tables.Item("tblProcessStepType").Rows(i) strMenu2(0, i) = dr2("ProcessStepType") strMenu2(1, i) = dr2("F_ProcessStepID") i = i + 1 Next For i = 0 To UBound(strMenu, 2) If strMenu(0, i) <> "" Then ' Acquire references to the owning control and item. Dim c As Control = fruitContextMenuStrip(i).SourceControl Dim tsi As ToolStripDropDownItem = fruitContextMenuStrip(i).OwnerItem ' Clear the ContextMenuStrip control's ' Items collection. fruitContextMenuStrip(i).Items.Clear() ' Populate the ContextMenuStrip control with its default items. For j = 0 To UBound(strMenu2, 2) If strMenu(1, i) = strMenu2(1, j) Then fruitContextMenuStrip(i).Items.Add(strMenu2(0, j)) End If Next End If Next ' Set Cancel to false. ' It is optimized to true based on empty entry. e.Cancel = False End Sub Tag: Change Default Image in Custom Control? Tag: 116229
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    - MDI Parent Child Maximize form issue Hi, I have a situation where I have a MDI Parent form that contains a menuStrip control at the top. When I launch a Child Form I specify: frmChild.WindowState = FormWindowState.Maximized; The problem is that the maximize/minimize buttons on the Child Form appear above the MDI Parent's menuStrip...not below it where I would expect it. Is there a setting that I can set to maximize the Child Form in the space below the menuStrip? Thanks! Ron Tag: Change Default Image in Custom Control? Tag: 116226
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    - Relative path that works in development and after deployment I was wondering if somebody could show me on how to use relative path in windows application that will work during DEVELOPMENT as well as after DEPLOYMENT. In short, here's my situation. During development the files in my project are located as follows: MyProject\bin\Release\MyApplication.exe MyProject\Settings\MyXMLFile.xml During development I use this syntax to load to MyXMLFile.xml from the .exe: xmlDocument.Load(@"..\..\Settings\MyXMLFile.xml"); Everything was fine until after I deployed the project whereas the file location now changed to: C:\Program Files\MyProject\MyApplication.exe C:\Program Files\MyProject\Settings\MyXMLFile.xml Now I started to get an error message stating that file 'C:\Settings\MyXMLFile.xml doesn't exist'. Please keep in mind these limitations: 1. I do not want to hard-code the relative path in app.config, I just want to use relative path. 2. I cannot use resource file because I need to change the MyXMLFile.xml during runtime. 3. Basically what I need is the relative path that can point to the project folder instead of the .exe, much like ~ sign to point to application root folder in web application. Thanks, P_Prdn Tag: Change Default Image in Custom Control? Tag: 116224
  - 21
    - Fast control for bus monitor I am writing a bus monitor / protocol analyzer using VS 2005 C++/CLI. Currently I am using a RichTextBox to display the messages. I am adding each message with AppendText. This seems to be very slow; the RichTextBox cannot keep up with the speed at which the messages come in. Is there a faster way to append new strings to the RichTextBox? Alternatively is there a better control to use? The ListView seems to update a little quicker but does not scroll as smoothly as the messages are added. TIA, KK Tag: Change Default Image in Custom Control? Tag: 116222
  - 22
    - NumericUpDown ValueChanged not firing - scrollwheel+shift key pres Hello, really hope you guys can help. I'm using a standard NumericUpDown control on a form, and trying to change the increment depending if a Control.ModifierKeys is pressed when the mouse scrollwheel is moved. Default increment is 0.5 When Keys.Control is pressed and I roll the mousewheel, the increment is adjusted to 5 and the ValueChanged event firest. Great. But when Keys.Shift is pressed and I roll the mousewheel, the increment is adjust to 1 BUT ValueChanged does not fire, so the value in NumericUpDown doesn't get adjusted. Not so great. I'm really confused as to why Shift would not cause ValueChanged to fire. Here's the little bit of code : private System.Windows.Forms.NumericUpDown numPrice; this.numPrice = new System.Windows.Forms.NumericUpDown(); private void numPrice_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e) { //check it's capturing if (Control.ModifierKeys == Keys.Shift) { numPrice.Increment = 1; } else if (Control.ModifierKeys == Keys.Control) { numPrice.Increment = 5; } } I guess I can manually fire ValueChanged after Shift and bodge it in some way? Really starting to lose my mind over this... Tag: Change Default Image in Custom Control? Tag: 116221
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    - problem with excel hi, i'm facing a strange problem.. In my requirement , I'm suppose to load the data from datagrid into excel file. make the required changes in the file and load the file back into the datagrid. i'm able to export to excel but after i make changes in the excel and load it into grid, my changes are not visible..i'm getting null values.. i've datetime columns,decimal columns in my file...The values are visible in the file but when i load into grid..i'm seeing blanks spaces.. has anyone encountered such problem.? How can load from excel to datagrid Tag: Change Default Image in Custom Control? Tag: 116220
  - 24
    - TabControl stealing focus I have some code in the form that processes a change event for a textbox. It modifies a property of an object which causes a separate visible TabControl to rebuild the tab pages. The tabcontol is calling rebuilding the tab page collection for the new object generated based on the property change. The problem is when I remove or clear the tabs my textbox loses focus and the TabControl gets focus. Is there anyway I can prevent this? I tried filtering out WM_SetFocus messages while the tabs are being contructed but that doesn't seem to fix my problem. Thanks, Brian Tag: Change Default Image in Custom Control? Tag: 116214
  - 25
    - Textbox overtype How can I put a textbox in override/overtype mode ? -- Arne Garvander Certified Geek Professional Data Dude Tag: Change Default Image in Custom Control? Tag: 116211

When a custom control is compiled, and then added to the VS.Net toolbox, it
has a 'gear' type image.

For the life of me, I've searched on the net over and over and can't find
how to change that image, inside the control itself, when you're building
it.

Anyone got a vb.net tutorial/website page/whatever, which tells how this is
accomplished?

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