Treenode - line through it

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  - 1
    - How to host CHM help viewer in an MDI child form? I am writing a Windows Forms application using VS.NET 2003 and C#. The application uses the Multi-Document Interface (MDI) style. Our customer education team requires that the application display context-sensitive help using the common CHM file format. We are currently using P/Invoke as follows to display the help file: [DllImport( "HHCtrl.ocx" )] public extern static int HtmlHelp( int hwnd, string pszFile, int cmd, int data ); protected const int HH_HELP_CONTEXT = 0x000F; virtual protected int DisplayHelp( int helpID, string fileName, string helpName ) { // Open the HelpViewer window. int res = HelpControlBase.HtmlHelp( 0, fileName, HH_HELP_CONTEXT, helpID ); return res; } This launches a new form in a child process. We now need to have the CHM help content be hosted in an MDI child form so that the child form can be managed like all of the other child forms. I have searched without success for information on how to do this. How can I display the CHM help content in an MDI child form? Is there a .NET solution for this? Thanks, Dave -- Dave Leach Agilent Technologies, Inc. Tag: Treenode - line through it Tag: 103821
  - 2
    - TextBox OnKeyUp/Down, ProcessCmdKey acting up... a lot I'm writing a hotkey selection control, which inherits from a TextBox. It seemed to work fine for a while, but I ran into a huge bug today. The KeyCode/KeyData values are completely whack, I get the same results with KeyUp/KeyDown event handlers and overriding ProcessCmdKey(). Lets say I press "7" (not the numpad 7), and examine the KeyCode/KeyData values on the first line of ProcessCmdKey. I get this... keyData = LButton | RButton | MButton | ShiftKey | Space That's when I press and quickly release a single "7". Numpad 7 gives 0x67, looks sensible... The caret key, next to return (on a Swedish keyboard) gives: RButton | Back | ShiftKey | Space | F17 What the hell is going on? Anybody with a clue? Some keystrokes (such as most letters) work just fine. Thanks in advance /Thomas Tag: Treenode - line through it Tag: 103820
  - 3
    - Which is the sequence of events when using ShowDialog()? Hi all, I'm having troubles with a Symbol 9000 device (Compact Framework v 1.1) when activating the barcode scanner from a window. The problem is related to the Activated event of the form which carries the task of the initializing the scanner. It looks like this event is not called after the creation of one of the forms. Let me describe shortly the sequence of form creation. The app first call a browsing form by using ShowDialog(). This browsing form (modal dialog) calls a data input form that uses the scanner device using ShowDialog(). It works as expected. On the Activated event it captures the scanning device and on Deactivate releases it. This forms is also a modal dialog. From this data input I call a third data input form also by using ShowDialog(). Note it is the third on the "stack" of called modal dialogs. The Deactivate event is called for the second form and the scanner is released, but the Activated event is not called for this third form then the scanner is not activated. To get the Activated event called I should make a trick: The three modal dialogs are represented on the taskbar as buttons. I can click the button of the second form. It is displayed but is blocked for input. But in this click the Deactivate event is called for the third form and the Activated is called for the second. Then I click the button on the taskbar for the third form and voila! the Activated event is called for the first time for the third form, resulting in the scanner device being activated. I should note that the handlers for these events are registered in the Load event handler. The Load event handler is registered on InitializeComponent as normally it is created from the Visual Studio 2005. I fear the Activated event is called before the Load when the handler is not registered yet. What can be wrong? Which is the sequence of events when using ShowDialog()? Any hint is welcomed Thanks in advance Sammy Tag: Treenode - line through it Tag: 103817
  - 4
    - Finding text from a single cell in a datagridview Hi, I have a datagrid view that I have manually bound with a dataset. It has a column displayed as checkboxes, what I want to do is update the database when a checkbox is checked. To do this I need to find a value at cloumn index = 0 that corresponds to the row in which the checkbox has just been checked. Here is what I have: private void dgErrorLog_CurrentCellDirtyStateChanged(object sender, EventArgs e) { int row = dg.CurrentCell.RowIndex; int col = 0; string loc = // Text in cell (0, row); } So when the checkbox value changes, i find the row index of it. The problem is now that i don't know how to set the text in cell (0, row) to a useable string. Any ideas? Thanks. Tag: Treenode - line through it Tag: 103814
  - 5
    - Re: Slow drawing speed of WinForms (esp via COM interop) - SOLVED On Tue, 18 Jul 2006 15:57:37 +0100, in microsoft.public.dotnet.framework.windowsforms you wrote: >Hi, > >Has anybody experienced severe slow-down with the drawing speed of >WinForms? It's not fast at the best of time, but the particular >scenario I am having problems with is via COM interop and Excel. > >The structure is: > > > Excel VBA macro > | > V > instantiate and call a COM wrapper class exposed > by my assembly using ComVisible(true) > | > V > Wrapper class instantiates the WinForm > and displays it > > >The forms don't do anything special, they contain maybe 10-20 >controls, including one or two grids, but you can sit there and watch >them paint themselves control-by-control. > > Phil I finally got chance to take an indepth look at this problem this morning, and much to my surprise, I have actually solved it without too much trouble. The problem was not related to Debug vs Release mode, order of form painting events, in process vs out of process COM servers, BeginUpdate()/EndUpdate, SuspendLayout()/ResumeLayout(), SuspendBinding()/ResumeBinding() or any other "usual suspect". It was purely a problem within the WinForms engine when it comes to painting forms. I proved this by creating a simple form and dragging about 20 controls onto it. Display this form via a COM interface and the painting speed is terrible (checked list boxes are particularly bad), run it by double clicking the EXE from within Windows Explorer and the painting speed was great. So what's the difference? It turns out that the problem is related to these 2 magic lines that VS2005 puts at the beginning of the Main method in every Windows Forms application: Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); You know, the 2 lines that you mentally tune out because they are always there and you never need to edit them and they run first before anything happens because Main is the entry point for your application... However, if you are allowing callers to display forms via a COM interface then you have multiple potential entry points to your assembly, and Main is actually unlikely to be the first method to run. For example, here is a COM interface in a test app I wrote: [ComVisible(true)] [Guid("33F6DDA9-0D4D-4276-AC8D-C66E315649F2")] [InterfaceType(ComInterfaceType.InterfaceIsIDispatch)] public interface IShowForms { void ShowForm(); } [Guid("3649EC0C-8F49-4844-B2F0-EF154E2D10AF")] [ClassInterface(ClassInterfaceType.None)] [ProgId("COM.ShowForms")] [ComVisible(true)] public class ShowForms : IShowForms { public void ShowForm() { using (Forms.frm1 f = new Forms.frm1()) { f.ShowDialog(); } } } You can instantiate and run this from VBA using the following: Dim f As COM.IShowForms Set f = New COM.ShowForms f.ShowForm If you do this, then those magic 2 lines don't get called and the painting performance is pathetic. So to solve the slow painting problem we need to ensure those 2 lines are run (the WinForms engine also requires that the 2 lines are run before any forms are displayed and that they are only called once). My quick and dirty solution is to add a static variable and method to the Program class: private static bool m_VisualStylesHaveBeenSet; public static void SetVisualStyles() { if (!m_VisualStylesHaveBeenSet) { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); m_VisualStylesHaveBeenSet = true; } } Then adjust Main to call this method, and ensure that the constructor of every class which is exposed via COM also calls it: static void Main() { SetReferenceToConfigFile(); SetVisualStyles(); Application.Run(new frmMain()); } public ShowForms() { Program.SetVisualStyles(); } This is a tolerable solution at the moment because I only have about 5 COM-exposed classes, but a better solution might be to try and call it when the assembly is loaded. By the way, it's actually the call to EnableVisualStyles() which is the one which gives the performance boost, the other line doesn't seem to make any difference. I have had a look at the code for the EnableVisualStyles() method in Reflector, and it doesn't seem to do much so the reason for the poor performance is still unknown to me. I suspect it is hidden deep in the WinForms engine, and may be operating system related (I am on XP Pro SP2). Happy interopping! -- Phil Tag: Treenode - line through it Tag: 103813
  - 6
    - PropertyGridInternals.MergePropertyDescriptor returns null value I've specialised a System.ComponentModel.TypeConverter class to handle a bespoke object which I need to display on a PropertyGrid. I override the GetStandardValues fnt and retrieve the currently displayed object using -- myObj = context.PropertyDescriptor.GetValue(context.Instance) as myObjType; This works great if only one item is added to the propertyGrid eg. myPropertyGrid.SelectedObject(myPropsToDisplay); But, if I add multiple objects to the propertyGrid eg. myPropertyGrid.SelectedObjects(myPropsToDisplayArray); the context.PropertyDescriptor.GetValue(context.Instance); returns null. Is this a bug or am I missing something? Thanks for any help. Tag: Treenode - line through it Tag: 103812
  - 7
    - How to set ImeMode for the datagridviewtextboxcolumn? How to set ImeMode for the datagridviewtextboxcolumn? I want to disable ime each cells on datagridview when editing. Tag: Treenode - line through it Tag: 103807
  - 8
    - Using .NET dll as COM component in MFC MSI Application Hello, I have written a class library (dll) using csharp and VS2005. Now, I want to use this class as COM in my MFC application. I'm looking for a step-by-step information on how to do it, consiting the two parts: 1. Exporting a class library as COM component. 2. Using the COM component in my MFC MDI application. Thanks in advance. Janiv Ratson. Tag: Treenode - line through it Tag: 103802
  - 9
    - message queue Hi Here is my problem: I have a control that does one thing when it is clicked and something else when it is double clicked. However the click event is always fired before the double click event. Is there any way I can look at the message queue for this control and determine if the next message is a double click and therefore disregard the click event? Tag: Treenode - line through it Tag: 103797
  - 10
    - Can you Add a ActiveX control in another thread and show it on a form I have a third party active X control which I am using. Some functionalities require a bit of processing (loading and manipulating files). Since I (or I don't know how to do otherwise) need to add the control using the same thread as the UI, when it loads the file it locks up the painting of the form until the control is finished. Is their a way to have the control loaded in another thread then the form which holds it? Thanks Tag: Treenode - line through it Tag: 103796
  - 11
    - List of items WinForms can do that WebForms cannot I would like to build a WinForm demo form (perhaps MDI) to log and demonstrate the various controls, events, etc that WinForms can do that WebForms cannot. This is intended as an objective way to compare the various features, pluses and minuses of each paradigm. I would intend to post this form to CodeProject for anyone to see. Subsequently, perhaps I or someone else could do the same for WebForms. For now, here are a few things I thought of (and I could be in error; that's the point your help). 1. System tray 2. Notify icon and functionality 3. Popup windows (like Outlook) for new mail arrivals 4. Scroll bars 5. F1 Help 6. MDI 7. Drag/Drop Thanks, Dean S Tag: Treenode - line through it Tag: 103795
  - 12
    - delay in drawing controls during loading of form Hi, I have a form (C#) which has multiple controls on it (picturebox, tab controls, etc). When the form begins to draw on its initial load, the background is drawn with all the controls being transparent. Then each of the controls seem to be drawn one after another. Is it possible to make it that the form (and all the controls) draws at once. Kinda like DoubleBuffering if I was doing a OnPaint. Thanks Tag: Treenode - line through it Tag: 103794
  - 13
    - How to unescape HTML string I have a simple question, is there an easy way in .NET to unescape HTML characters? for example I have a string "Siebel Analytics Sr Consultant-&quot;Partner w/ Deloitte &amp; have the oppty to become a Partner&quot;" and I want to have "Siebel Analytics Sr Consultant- Partner w/ Deloitte & have the oppty to become a Partner" Thank You Tag: Treenode - line through it Tag: 103791
  - 14
    - Language toolbar Each time I log on to windows, the language Toolbar is on the taskbar; and every time I log on, I remove it. How can I get it to stay off? Tag: Treenode - line through it Tag: 103787
  - 15
    - Is it possible to display deleted row(s) in DataGrid Is it possible to make the DataGrid shows a row with RowState == DataRowState.Deleted? (e.g. display a deleted row using another color and allow user to undo the deletion) thanks Tag: Treenode - line through it Tag: 103786
  - 16
    - Customizing the WebBrowser control I am embeding the WebBrowser in my application to show reports. I would like to embed the graphics and the CSS files in a resource. To do this I need to "hook" the WebBrowser control so that when it goes looking for these files, I can give it the files from the resource. Any thoughts on how to do this? It does NOT look possible, at the moment. Sam Tag: Treenode - line through it Tag: 103785
  - 17
    - TopMost - affects realtime? Suppose I have a form that loads with TopMost = True. If I change the form to TopMost = False will it immediately affect the form -- in other words is TopMost dynamic? The reason I ask is that I want to disable TopMost when I'm displaying a Msgbox (otherwise the message box appears behind my form). Rob. Tag: Treenode - line through it Tag: 103784
  - 18
    - OpenGL canvas in windows forms application Hi all, I need an opengl (2.0) canvas in a windows forms application using c++. How can this be accomplished? I didnt find any ressources on the web... Thanks in advance Philipp Tag: Treenode - line through it Tag: 103783
  - 19
    - WebbrowserControl: Position of images in frame/iframe Hi All, I have a web browse control hosted in a windows form. I want to calculate the coordinates of all the images present in the web page displayed in the webbrowser. I am adding all the documents(main document and the iframe/frame documents) in a HTMLDocument list on the NavigateComplete2Event. I am using GetClientRects() to find the coordiantes. >From these documents I am able to get the correct image position if it is the main browser document( i.e. when browserControl.Document.url = documentFromList.url), but for other documents, it gives the displaced image coordinates. The image, top-left coordinate returned for such documents is usually wrt (0,0).However, they return correct anchor coordinates. Is there any other approach by which I can get the correct coordinates for the images in iframe/frames? Thanks, Nupur Tag: Treenode - line through it Tag: 103781
  - 20
    - ListView sort only sorts on paint? Has anyone notices this behavior? I have a composite control that contains a listview. I've created my own listviewsorter class that works just fine. As items get added (in this case - a very small #, less than 40), I repaint all items background to white, sort, and perform a colorization. The code was supposed to colorize some things in an alternating pattern, but i noticed sometimes it wasn't alternating. What I found was although my colorization colored the correct items - the sort wasn't happening until the parent that housed the composite control got redrawn!!! I tried a Refresh, an Update, a ResumeLayout, RedrawItems, etc. Nothing got this to work with the listview. I did code around it myself with a sortedList, but I find it odd that when I call ListView.Sort it just seems to queue up the sort for the next paint operation. Am I mistaken? Does anyone know how this really works? Tag: Treenode - line through it Tag: 103780
  - 21
    - DataGridView CellValueChanged event not firing I have a DataGridView that is bound to a list of objects through it's datasource property. If a cell in the grid is changed by editing directly in the cell I get a CellValueChanged event. If the value is changed in the underlying object that causes the cell in the grid to get changed then the CellValueChanged event does not occur. Does anyone know of a way to detect a cell value changing for both cases? I would like to detect the value change without leaving the row since I am trying to give immediate visual feedback regarding the validity of the data being entered and don't want the user to have to leave the row to find out if data in a cell is valid. Tag: Treenode - line through it Tag: 103777
  - 22
    - Question about SizeDataGridColumnToContent function... Using C# string xmlfile = "appsettings.xml"; DataSet ds_login = new DataSet(); ds_login.ReadXml(xmlfile); dgConnection.DataSource = ds_login; dgConnection.DataMember = "Connection"; SizeDataGridColumnsToContent(dgConnection, 1); The function works the way it is suppose to for every other datagrid I have. But for the one bound to the dataset with the XML I get an extra column added. the column is Connections_Id where Connections is an element name... The column DOES NOT show up if I don't use the SizeDataGridColumnsToContent function. here is the function: public void SizeDataGridColumnsToContent(DataGrid dataGrid, int nRowsToScan) { //first check to make sure the DataGrid has a valid datasource if (dataGrid.DataSource == null) { //it does not return; } // Create graphics object for measuring widths. Graphics Graphics = dataGrid.CreateGraphics(); // Define new table style. DataGridTableStyle tableStyle; //necessary b/c of the DataSet looping int nRowsToScanOriginal = nRowsToScan; bool scanAllRows; if(-1 == nRowsToScan) scanAllRows = true; else scanAllRows = false; try { if (dataGrid.DataSource.GetType() == typeof(DataSet)) { DataSet dataSet = (DataSet)dataGrid.DataSource; if(dataSet.Tables.Count == 0) { //if the DataSet it empty, nothing to do return; } // Clear any existing table styles. dataGrid.TableStyles.Clear(); foreach(DataTable dataTable in dataSet.Tables) { if (scanAllRows) { nRowsToScan = dataTable.Rows.Count; } else { // Can only scan rows if they exist. nRowsToScan = System.Math.Min(nRowsToScanOriginal, dataTable.Rows.Count); } // Use mapping name that is defined in the data source. tableStyle = new DataGridTableStyle(); tableStyle.MappingName = dataTable.TableName; // Now create the column styles within the table style. DataGridTextBoxColumn columnStyle; int iWidth; for (int iCurrCol = 0; iCurrCol < dataTable.Columns.Count; iCurrCol++) { DataColumn dataColumn = dataTable.Columns[iCurrCol]; columnStyle = new DataGridTextBoxColumn(); columnStyle.TextBox.Enabled = true; if(dataColumn.Caption != "") { columnStyle.HeaderText = dataColumn.Caption; } else { columnStyle.HeaderText = dataColumn.Caption; } columnStyle.MappingName = dataColumn.ColumnName; // Set width to header text width. iWidth = (int)(Graphics.MeasureString (columnStyle.HeaderText, dataGrid.Font).Width); // Change width, if data width is // wider than header text width. // Check the width of the data in the first X rows. DataRow dataRow; for (int iRow = 0; iRow < nRowsToScan; iRow++) { dataRow = dataTable.Rows[iRow]; if (null != dataRow[dataColumn.ColumnName]) { int iColWidth = (int)(Graphics.MeasureString (dataRow.ItemArray[iCurrCol].ToString(), dataGrid.Font).Width); iWidth = (int)System.Math.Max(iWidth, iColWidth); } } columnStyle.Width = iWidth + 4; // Add the new column style to the table style. tableStyle.GridColumnStyles.Add(columnStyle); } // Add the new table style to the data grid. dataGrid.TableStyles.Add(tableStyle); } } else if(dataGrid.DataSource.GetType() == typeof(DataTable)) //the datagrid just has a DataTable { tableStyle = new DataGridTableStyle(); DataTable dataTable = (DataTable)dataGrid.DataSource; if (-1 == nRowsToScan) { nRowsToScan = dataTable.Rows.Count; } else { // Can only scan rows if they exist. nRowsToScan = System.Math.Min(nRowsToScan, dataTable.Rows.Count); } // Clear any existing table styles. dataGrid.TableStyles.Clear(); // Use mapping name that is defined in the data source. tableStyle.MappingName = dataTable.TableName; // Now create the column styles within the table style. DataGridTextBoxColumn columnStyle; int iWidth; for (int iCurrCol = 0; iCurrCol < dataTable.Columns.Count; iCurrCol++) { DataColumn dataColumn = dataTable.Columns[iCurrCol]; columnStyle = new DataGridTextBoxColumn(); columnStyle.TextBox.Enabled = true; if(dataColumn.Caption != "") { columnStyle.HeaderText = dataColumn.Caption; } else { columnStyle.HeaderText = dataColumn.ColumnName; } columnStyle.MappingName = dataColumn.ColumnName; // Set width to header text width. iWidth = (int)(Graphics.MeasureString (columnStyle.HeaderText, dataGrid.Font).Width); // Change width, if data width is // wider than header text width. // Check the width of the data in the first X rows. DataRow dataRow; for (int iRow = 0; iRow < nRowsToScan; iRow++) { dataRow = dataTable.Rows[iRow]; if (null != dataRow[dataColumn.ColumnName]) { int iColWidth = (int)(Graphics.MeasureString (dataRow.ItemArray[iCurrCol].ToString(), dataGrid.Font).Width); iWidth = (int)System.Math.Max(iWidth, iColWidth); } } columnStyle.Width = iWidth + 4; // Add the new column style to the table style. tableStyle.GridColumnStyles.Add(columnStyle); } // Add the new table style to the data grid. dataGrid.TableStyles.Add(tableStyle); } } catch(Exception e) { MessageBox.Show(e.Message); } finally { Graphics.Dispose(); } } Here is the XML file also if that helps... <?xml version="1.0" encoding="utf-8" ?> - <AppSettings> - <DatebaseConnections> - <Connection> <Server>DSS-SERVER3</Server> <Database>ClientScanTest</Database> </Connection> </DatebaseConnections> - <LoginSettings> <Admin>GaKFQUS2Oo92F6byJQGbEg==</Admin> </LoginSettings> </AppSettings> This is the Output also... Server Database DatabaseConnections_Id DSS-SERVER3 ClientScantest 0 as seen in the datagrid the dataset is bound to. Tag: Treenode - line through it Tag: 103775
  - 23
    - Select a row of a DataGridView control with a certain column value Hi all out there, how can I select a row of a DataGridView control with a certain column value? What I need is something like a "RowDataBound" event, but I did not found this functionality in the DataGridView control. Background: I've got a DataGridView connected to a BindingSource. The User changes the sorting and then selects a row and hits the Edit button. Another form opens in which the user edits the detail data. If the detail form is closed, the data of the first form should be updated and then the originally selected row should be again selected (more exactly: the row with a certain value in a column, lets say where id=27). Thanks a lot for your help Ulrich Tag: Treenode - line through it Tag: 103774
  - 24
    - Video Capture Hi, hope someone can help. I am trying to capture video in my application. I have been using Capturepro by Pegasus. However it is very slow when doing the initial connection to the camera. Does anyone know of a component that is quicker? Thanks in advance. Dave Tag: Treenode - line through it Tag: 103767
  - 25
    - Textbox Control Hello, I have a textbox with data in it that extends beyond the size of the text box. I am looking for a way to display the data in the textbox with the data scrolled all the way to the right: Before: ------------------- | Peter Piper| ------------------- After What I Want: ------------------ |led Pickels.| ------------------ The text is justified to the right (I already tried it with setting the text justification to the right with no luck). Thanks, Chuck Tag: Treenode - line through it Tag: 103761
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  - 1
    - ReportViewer Control Local Report not showing all records/rows I am dynamically creating a ReportViewer control and loading a local report. After adding appropriate datasources, the ReportViewer intermittently does not show all the rows/records that should be displayed (e.g. only showing 2 when there should be 4). Refresh will usually correct the problem but that is not a preferred fix. Anybody else run into this and have a solution? Thanks. Darrin McQuay Tag: Treenode - line through it Tag: 103757
  - 2
    - Tooltip Font Hi all, I'm writing a program where I have to draw custom tooltips onto a control through OnPaint. I've figured out how to get the text color and the box color (KnownColor.InfoText and KnownColor.Info), but I can't find anywhere how to figure out what the font is. I've looked through the WinAPI and others...maybe I'm just missing it, I dunno. Seems like it should be there somewhere, though. (These are what the user would set through the display settings in Windows.) Thanks in advance for any help. Tag: Treenode - line through it Tag: 103756
  - 3
    - How to override Combobox drop-down effect I am trying to prevent the combobox from dropping down; how do I override this effect? Thank you. - ed Tag: Treenode - line through it Tag: 103755
  - 4
    - DSOFramer and .NET Menus Apologies for the cross-posting - not sure where best to post...... Okay, this might be a shot in the dark since there are very few (positive) postings regarding the DSOFramer control but I'll give it a shot posting my problem anyway.... I'm trying to use the DSOFramer in a Visual Studio 2005 Windows Forms project (using C#). The configuration is simple. Using the standard tools provided with Visual Studio I have a main menu at the top with a toolbar just under it. A status bar is docked to the bottom and in the middle docked "fill" is the DSOFramer control. I am loading an Excel spreadsheet into the DSOFramer control. Here's the problem: 1. Click the "File" menu item from the main menu in the Windows Form (not the File menu in exposed by Excel). 2. Leave the menu in the expanded, dropped-down state. 3. Click anywhere on the Excel spreadsheet in the DSOFramer control. 4. The menu DOES NOT collapse. I have tried a number of combinations: .NET 1.1, third-party menu controls. Nothing works. The only control combination that does work is using Visual Studio 2003 and using the standard MainMenu control provided by Visual Studio. This seems to work okay HOWEVER, this control is very bland (does not allow for command icons) and is not useful for my project. In order to debug the problem I have also tried the following: 1. Capture EVERY event exposed by the DSOFramer control. No events are fired (such as Leave and Enter) when I click on and off of the hosted spreadsheet. 2. Ran the program using Spy to see what Windows messages were being sent. It appears WM_NOTIFYPARENT is sent but apparently .NET 2.0 ignores it (as does .NET 1.1). I'm no expert on Windows messages so perhaps I'm missing something rather than .NET! Any and all help is much appreciated. Tag: Treenode - line through it Tag: 103753
  - 5
    - determine which control will get the focus When handling the Lost_Focus event, is there a way to determine which control will get the focus before leaving the Lost Focus handler ? and then prevent the current control to not loose the focus ? Tag: Treenode - line through it Tag: 103752
  - 6
    - Cancel selection in ListView on MouseClick I would like to cancel the selection of the ListViewItem in the ListView on MouseClick? Any help would be appreciated. Etienne Lebeau, ing. jr. Software Designer Matrox Graphics etienne.lebeau@matrox.com Tag: Treenode - line through it Tag: 103751
  - 7
    - CAn not send email from winform VB.net app I am trying to send email through an SMTP server from my VB.NET 2.0 winform application. I keep getting an error: "Unable to connect to the remote server". Here is my code: Dim sTo As New MailAddress(to@mymail.com) Dim objMail As New MailMessage(sSender, sTo) objMail.IsBodyHtml = True objMail.Subject = "Testing" objMail.Body = "Body Test" Dim SmtpMail As New SmtpClient SmtpMail.Host = "smtp.remotesmtpserver.com" SmtpMail.Send(objMail) Can anyone please help me? Most of the help I have seen is for ASP. This is NOT a web app. Thanks, -- enak Tag: Treenode - line through it Tag: 103750
  - 8
    - CAn not send email from winform VB.net app I am trying to send email through an SMTP server from my VB.NET 2.0 winform application. I keep getting an error: "Unable to connect to the remote server". Here is my code: Dim sTo As New MailAddress(to@mymail.com) Dim objMail As New MailMessage(sSender, sTo) objMail.IsBodyHtml = True objMail.Subject = "Testing" objMail.Body = "Body Test" Dim SmtpMail As New SmtpClient SmtpMail.Host = "smtp.remotesmtpserver.com" SmtpMail.Send(objMail) Can anyone please help me? Most of the help I have seen is for ASP. This is NOT a web app. Thanks, -- enak Tag: Treenode - line through it Tag: 103749
  - 9
    - adding images to grid columns? .net 1.1 I have a windows forms .net 1.1 question: I tried adding an image (a picturebox) to a column in my grid, but haven't been able to do it adequately. The pictures are there, but they don't seem to be visible until I click on a cell and then the picture is visible. Not sure what's going on. Can you tell from the following code, or is there a better way: Sub DoAssessmentGrid() If bus.AssessmentList(ActionRequested.CaseNumber) Then Dim ts As DataGridTableStyle ts = dgAssessments.TableStyles(0) ts.MappingName = "ClientAssessments" Dim booleanColumn As DataGridBoolColumn booleanColumn = ts.GridColumnStyles.Item("CompleteBool") booleanColumn.TrueValue = True booleanColumn.FalseValue = False booleanColumn.NullValue = Convert.DBNull Try Dim executing_assembly As System.Reflection.Assembly = Me.GetType.Assembly.GetEntryAssembly() Dim my_namespace As String = executing_assembly.GetName().Name.ToString() If Not ts.GridColumnStyles.Item("Action") Is Nothing Then ActionColumn = CType(ts.GridColumnStyles.Item("Action"), DataGridTextBoxColumn) ActionColumn.Alignment = HorizontalAlignment.Center imgEdit = New PictureBox imgExport = New PictureBox Dim curDir As String = Environment.CurrentDirectory() imgEdit.Image = Image.FromFile("D:\OKDHS\AGING\ELDERS\ELDERSRemote\images\Edit.gif") imgEdit.Cursor = Cursors.Arrow imgEdit.SendToBack() imgExport.Image = Image.FromFile("D:\OKDHS\AGING\ELDERS\ELDERSRemote\images\btnExport.gif") imgExport.Cursor = Cursors.Arrow imgExport.SendToBack() ActionColumn.TextBox.Controls.Add(imgEdit) imgEdit.BringToFront() 'ActionColumn.Width = 65 'ActionColumn.TextBox.Controls.Add(imgExport) End If Catch ex As System.IO.FileNotFoundException SystemMessage.Tell("Couldn't find one of the image files for the grid") Catch ex As Exception End Try dgAssessments.DataSource = bus.ObjectDataSet dgAssessments.DataMember = ts.MappingName End If End Sub Tag: Treenode - line through it Tag: 103740
  - 10
    - Organise large amounts of controls in Designer Hello Netizens, I have an application with > 300 controls on several panes, all in one Form. It gets a little bit difficult to manage all these in the Designer. What is the correct way to solve this? I have only one form, but many panes. Tnx - Paul Tag: Treenode - line through it Tag: 103738
  - 11
    - SmartClient Sample Hi! I am new to SmartClient. Can anyone provide some links for SmartClient sample or tutorials Thanks, Baren Tag: Treenode - line through it Tag: 103732
  - 12
    - Custom title bar drawing Hello, I'm trying to make a skinned application, so i'm overriding the paint methods of the controls. Concerning the painting of the form itself, it seems that there are 2 options: - Making the form borderless (FormBorderStyle to None), and building our own custom window title bar, but just think that this needs some useless work as we have to rewrite some window functions (move, resize, ...). Moreover, when maximizing the window, it makes it fullscreen. - This lead me to the second option which was to use the non client area painting by catching the WM_NCPAINT message in the WndProc method. With the help of some Win32 functions, i paint on the form (FormBorderStyle to Sizable) but something weird happens, the system buttons on the title bar redraw themselves, for example, when i move the mouse over the window. So they appear on the custom painting... Does someone have an idea of what happens with the maximize/minimize/close buttons and/or have a workaround for the second option ? Cannot find which message makes the buttons to be repainted. Or is the first option the best solution to make a skinned application ? Thanks for your help! Valerie Tag: Treenode - line through it Tag: 103731
  - 13
    - Drag & Drop & Timer When doing a Drag & Drop SWF.Timer don't seem to work anymore. What can I do in such case? For now, as the OnDragOver event seems to be fire repetitively I use it. But I cannot control the time interval. Any better idea? Tag: Treenode - line through it Tag: 103730
  - 14
    - Tab Control Hi, Is it possible to have tab control buttons on bottom? With out going to to much trouble, thoug I have seen everywhere. Jared. Tag: Treenode - line through it Tag: 103724
  - 15
    - .Visible = False not working... I can't seem to make my form not visible. During the Load event I specifically set Me.Visible = False but the form still displays? Any suggestions ? Tag: Treenode - line through it Tag: 103723
  - 16
    - ToolStrip menu and MDI application Hi all Using VS2005 and .Net 2.0. I have a MDI parent form, and MDI children. What I would like to do is similar to merging menu's. I found you can define the menus on the child, specify a merge index and have the menu merge nicely with the MDI parents menu. Ideas? Thanks Andy Tag: Treenode - line through it Tag: 103714
  - 17
    - Keeping ToolStrip inside the same ToolStripContainer I would like to use multiple ToolTripContainers in my Form. I would like the ToolStrips in each ToolStripContainer to be freely movable within its container, but I would like to enforce a rule such that ToolStrips cannot be dragged from one ToolStripContainer to another. I am encapsulating each ToolStripContainer within a user control for several reasons, code reusability and layout simplicity being the main ones. I was hoping to simply implement a QueryContinueDrag handler in my UserControl but it does not seem to be getting called as I drag the ToolStrip around the screen. I'm using VS2005, .NET 2.0. I'm a veteran MFC programmer, been working with .NET for a couple of months - this is the first thing I've come up against where I wasn't able to find a solution with a little elbow grease! Any thoughts? Thanks, Mike T ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Tag: Treenode - line through it Tag: 103709
  - 18
    - ListView Custom Sorting and repositioning later I have a ListView with a custom ListViewItemSorter assigned. After I add all the items I assign the sorter and everything is sorted fine. This works the way I want. Now I want the user to be able to move items within the ListView but they're always resorted. If I try and set ListView.ListViewItemSorter = null then the items are no longer sorted in the original order. Any ideas how to work around this? -Joe Tag: Treenode - line through it Tag: 103706
  - 19
    - Can't see "Windows Form Designer Generated Code" in VS2005 Folks, I am developing a Visual Basic Windows application using Visual Studio 2005. For some reason I do not see any of the code that is normally generated by VB. Is there some setting/option I need to check somewhere in the IDE? Thanks, Vint Tag: Treenode - line through it Tag: 103701
  - 20
    - Question about MDI application I have an MDI application with the MDI parent container has a tabcontrol on it. When I bring up any child MDI forms, it won't show up over the tabcontrol. I have tried the form.bringtofront() and that doesnt work. Short setting the controls visible property to false, I can not figure this one out. Anyone have any ideas???? Tag: Treenode - line through it Tag: 103699
  - 21
    - Databinding: "BindingSource - field" syntax Hi, I have a question regarding databinding via the Visual Studio 2005 form designer. What I wanted to do is not a very good practice, it was just "quick and dirty" in really small application. I had a WinForms form with a typed dataset and a lot of controls bound to it via BindingSources. Because a lot of these fields are optional, and I wanted to clean the form up, I added a little button invoking a second (modal) form containing those fields. The latter only contained a BindingSource that got hooked up to the typed dataset on the main form (by passing a reference at creation) in runtime. (I passed the entire dataset because i needed a few tables with reference data). Knowing that the schema of the dataset will never change again I just wanted to bind the controls on the second form to the bindingsource in design time. Of course, the designer can't provide me with DisplayMembers, etc... I found that it was possible to manually set the DataBindings property for Text and Tag using the " bindingsource - field" syntax, the correct code is generated. For other fields, e.g. SelectedValue in a combobox, this is not possible via the properties window. I am curious now, is this a bug in VS2005 or is this supported? If so, why doesn't the "bindingsource - field" syntax work for all properties? Tag: Treenode - line through it Tag: 103697
  - 22
    - How to clone a refrenced type object? Hello I am developing a utility to be reused in other programs. It I have an object of type Control (a TextBox, ComboBox, etc.) that other programmers use it in applications. they may set some of properties or assign event handlers. I need to be able to clone the manipulated control at runtime. I could use the Clone method of some objects (like Font, Style, String, etc..) but the controls like Button, TextBox, ListBox doesn't have this kind of method. How can I create a clone of an object instance for controls like TextBox, ListBox, ListViews, CheckBox ?? Any help is appreciated, Tag: Treenode - line through it Tag: 103688
  - 23
    - Hide form from Alt-Tab when first run Hi All, I would like to start a VB.Net 2.0 app minimised to the tray area. I use the NotifyIcon component, set the form to start minimised by adding this to the form.load event Me.WindowState = FormWindowState.Minimized Me.Hide() and set the notifyicon component property to visible, so it shows in the tray area. I have also set the showintaskbar property of the main form to false. All seems to work well when I run the app; the form does not show on the taskbar, and I can see the notifiyicon's icon image in the task bar. The problem is that the form icon is visible in the alt-tab switcher list. However, if I double click the icon in the taskbar, which runs this code in the notifyicon doubleclick event handler Me.Show() If (Me.WindowState = FormWindowState.Minimized) Then Me.WindowState = FormWindowState.Normal Me.Activate() End If NotifyIcon.Visible = False and then minimise the form, which runs this code in the form.resize event handler If (Me.WindowState = FormWindowState.Minimized) Then Me.Hide() NotifyIcon.Visible = True then now the form icon does not appear in the alt-tab switcher. I don't understand what is happening when the form is first shown, that is not happening when I restore and minimise the form. I have looked in these newsgroups and on the net but I could not find the answer, so any clues as to how to accomplish hiding the form from the alt-tab list when it first runs would be much appreciated. Thanks. Tag: Treenode - line through it Tag: 103687
  - 24
    - How to draw shadow of arc? Because the backgroud color of the form is white, when I use SmoothingMode.AntiAlias, the color of shadow seems gradient to white color. But if I don't use SmoothingMode.AntiAlias, there are white gap between four arc. Here is the source code: using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Drawing.Drawing2D; namespace WindowsApplication1 { public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.Panel panelContent; private System.ComponentModel.Container components = null; public Form1() { InitializeComponent(); } protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } private void InitializeComponent() { this.panelContent = new System.Windows.Forms.Panel(); this.SuspendLayout(); // // panelContent // this.panelContent.Location = new System.Drawing.Point(88, 56); this.panelContent.Name = "panelContent"; this.panelContent.Size = new System.Drawing.Size(272, 120); this.panelContent.TabIndex = 0; this.panelContent.Paint += new System.Windows.Forms.PaintEventHandler(this.panelContent_Paint); // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.BackColor = System.Drawing.Color.White; this.ClientSize = new System.Drawing.Size(448, 277); this.Controls.Add(this.panelContent); this.Name = "Form1"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "Form1"; this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint); this.ResumeLayout(false); } [STAThread] static void Main() { Application.Run(new Form1()); } private void panelContent_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { e.Graphics.SmoothingMode = SmoothingMode.AntiAlias; System.Drawing.Drawing2D.GraphicsPath path = new GraphicsPath(); int width = this.panelContent.Width - 1; int height = this.panelContent.Height - 1; path.StartFigure(); path.AddLine(16, 0, width - 16, 0); path.AddArc(width - 32, 0, 32, 32, 270, 90); path.AddLine(width, 16, width, height - 16); path.AddArc(width - 32, height - 32, 32, 32, 0, 90); path.AddLine(width - 16, height, 16, height); path.AddArc(0, height - 32, 32, 32, 90, 90); path.AddLine(0, height - 16, 0, 16); path.AddArc(0, 0, 32, 32, 180, 90); path.CloseFigure(); Brush b = new SolidBrush(Color.FromArgb(239, 239, 239)); e.Graphics.FillPath(b, path); b.Dispose(); Pen parc = new Pen(Brushes.LightGray, 1); parc.LineJoin = LineJoin.Round; e.Graphics.DrawPath(parc, path); for(int i=0;i<4;i++) { Pen p1 = new Pen(Color.FromArgb(132 + 30*i, 132 + 30*i, 132 + 30*i)); e.Graphics.DrawArc(p1, this.panelContent.Width - 32 + i, this.panelContent.Height - 32 + i, 32, 32, 0, 90); p1.Dispose(); } } private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { e.Graphics.SmoothingMode = SmoothingMode.AntiAlias; for(int i=0;i<4;i++) { Pen p1 = new Pen(Color.FromArgb(132 + 30*i, 132 + 30*i, 132 + 30*i)); e.Graphics.DrawLine(p1, this.panelContent.Right + i, this.panelContent.Top + 16 + i, this.panelContent.Right + i, this.panelContent.Bottom - 13 + i); e.Graphics.DrawLine(p1, this.panelContent.Left + 16 + i, this.panelContent.Bottom + i, this.panelContent.Right - 13 + i, this.panelContent.Bottom + i); e.Graphics.DrawArc(p1, this.panelContent.Right - 32 + i, this.panelContent.Bottom - 32 + i, 32, 32, 0, 90); p1.Dispose(); } } } } Tag: Treenode - line through it Tag: 103685
  - 25
    - novice help for combo box needed This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C6BB41.66804AF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I am trying to emulate with ComboBox, what I do with a Web DropDownList. dropdownList.Items.Add(new ListItem("30", "30 days")); dropdownList.Items.Add(new ListItem("60", "60 days")); As you can see, 30 and 60 are values and "30 days" and "60 days" for = displaying. Not populating from the database here. I just want those = two items to be in the combo box. Very simple. Cannot for the life of me figure out how to do this. ComboBox.Items is = an ObjectCollection, and I have no idea how to emulate the above. =20 So I decided to create table like this and populate. DataTable table =3D new Table(); table.Columns.Add("Value"); table.Columns.Add("Display"); //and create rows with what I want to populate DataRow row =3D table.NewRow(); row["Value"] =3D 30; row["Display"] =3D "30 days"; table.Rows.Add(row); cmbBox.ValueMember =3D "Value"; cmbBox.DisplayMember =3D "Display"; cmbBox.DataSource =3D table; Now that seems like a lot of code for something very simple. And the strangest thing is, when cmbBox.DataSource =3D table executes, = the SelectedIndexChanged event fires! =20 PS: I am still using .NET 1.x. =20 ------=_NextPart_000_0006_01C6BB41.66804AF0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2912" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff background=3D""> <DIV><FONT face=3DArial size=3D2>I am trying to emulate with ComboBox, = what I do=20 with a Web DropDownList.<BR><BR>dropdownList.Items.Add(new = ListItem("30",=20 "30 days"));<BR>dropdownList.Items.Add(new ListItem("60", "60 = days"));<BR><BR>As=20 you can see, 30 and 60 are values and "30 days" and "60 days" for=20 displaying.  Not populating from the database here.  I just = want those=20 two items to be in the combo box.  Very simple.<BR><BR>Cannot for = the life=20 of me figure out how to do this.  ComboBox.Items is an = ObjectCollection,=20 and I have no idea how to emulate the above.  <BR><BR>So I decided = to=20 create table like this and populate.<BR><BR>DataTable table =3D new=20 Table();<BR><BR>table.Columns.Add("Value");<BR>table.Columns.Add("Display= ");<BR><BR>//and=20 create rows with what I want to populate</FONT></DIV> <DIV><FONT face=3DArial size=3D2>DataRow row =3D = table.NewRow();</FONT></DIV> <DIV><FONT face=3DArial size=3D2>row["Value"] =3D 30;</FONT></DIV> <DIV><FONT face=3DArial size=3D2>row["Display"] =3D "30 = days";</FONT></DIV> <DIV><FONT face=3DArial = size=3D2>table.Rows.Add(row);<BR><BR>cmbBox.ValueMember =3D=20 "Value";</FONT></DIV> <DIV><FONT face=3DArial size=3D2>cmbBox.DisplayMember =3D = "Display";</FONT></DIV> <DIV><FONT face=3DArial size=3D2>cmbBox.DataSource =3D = table;</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Now that seems like a lot of code for = something=20 very simple.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>And the strangest thing is, when = cmbBox.DataSource=20 =3D table executes, the SelectedIndexChanged event fires!  = </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>PS:  I am still using .NET = 1.x. =20 </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML> ------=_NextPart_000_0006_01C6BB41.66804AF0-- Tag: Treenode - line through it Tag: 103684

I have a situation where there is stuff in the database that I want to
display but make sure the user know's it's been disabled. Ideally I'd like
to draw a line through the item.

Is there a way to do this?

TIA - Jeff.

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Re: Treenode - line through it by Kevin

Kevin
Mon Aug 14 16:01:22 CDT 2006

You can do this through the Font (FontStyle) used.

Example:

Font f = new Font("Arial", 8F, FontStyle.Strikeout | FontStyle.Bold);

--
HTH,

Kevin Spencer
Microsoft MVP
Chicken Salad Surgery

Orange you bland I stopped splaying bananas?

"UJ" <fred@nowhere.com> wrote in message
news:u$S6nz9vGHA.4140@TK2MSFTNGP06.phx.gbl...
>I have a situation where there is stuff in the database that I want to
>display but make sure the user know's it's been disabled. Ideally I'd like
>to draw a line through the item.
>
> Is there a way to do this?
>
> TIA - Jeff.
>
>

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