HWND - What can I do with it?

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  - 1
    - custom gridviw column Please help, easily reproduced: 1. Create a class inheriting from System.Windows.Forms.DataGridViewTextBoxColumn . 2. Add a simple property to that class (see below for the code I used). 3. Add a column of that type to a DataGridView. 4. Try to set the property you just created using the "Edit Columns" dialog at design time. 5. Close and reopen the dialog. The value is gone! Am i doing something wrong? Setting the value in code works. Thanks for any help. Here's the class i used: Public Class MyColumn Inherits System.Windows.Forms.DataGridViewTextBoxColumn Private _MyProperty As String <System.ComponentModel.Category("MyProperties")> _ Public Property MyProperty() As String Get Return _MyProperty End Get Set(ByVal value As String) _MyProperty = value End Set End Property End Class Tag: HWND - What can I do with it? Tag: 104969
  - 2
    - BackgroundWorkerProcess and GUI updates (progress windows) Hi, I'm writing a little application that scans a large number of media files for processing. The main application currently uses a backgroundworkerprocess to perform the scan. Each media file has meta data extracted and is added to one of a range of lists (pseudo-queues) for later processing. This is all fine. But, I want to provide more feedback to the end user as to progress as the process takes a considerable time. To do so I have implemented a new modal dialog which outputs counts on queues, and the current location in the filesystem that the scanning has reached. However, I have problems with this. Firstly, I tried creating the new progress window in the main form class, that then failed as when I tried to update the labels and controls on the progress window I could not as the window was created in another thread. Then, I tried to create the progress window within the method that the backgroundworkerprocess thread runs. This did not allow me to create a modal dialog as I could not pass "this" into the constructor, because the variable was not created in the same process. I don't really want to move the logic into the progress window, because I need to deal with the queues when populated. This is just all seeming to be too much of a mess. Updating a progress window is such a COMMON thing that applications do all the time. There /must/ be a tried and tested pattern for doing so, I can't beleive that .NET doesn't have a nice simple way to do this. However, I've failed to find it so far. I'm new to .NET and winforms. I've done some limited GUI programming in Delphi and a tiny bit in VB6, I'm primarily an enterprise web application developer. i.e. I can code well in the web paradigm, but my thick client gui stuff is almost completely non-extant. Any pointers to RTFM greatly accepted. (Oh, .NET 2.0 in C# Express 2005) Cheers, Mike Tag: HWND - What can I do with it? Tag: 104968
  - 3
    - PAE at WindowsXP64edition. Dear all I think Windows64edition has a limitation of 2G memory for each software. WindowsXP has 4G memory limitation problem and 2G limitation of each software. I have 2 WindowsXP 64edition computers. One has 8G memory. Another one has 12G memory. Even if I am using such big memory machine, "memory Out" shows me on a screen. I have used boot .ini file on WindowsXP, and get PAE. Is there anyone who knows how to expand the 2G memory for each software??? Akihiko Japan Tag: HWND - What can I do with it? Tag: 104964
  - 4
    - Font size based on the client rectangle of the control. Hi, I have a control that render text. This is done in OnPaint() override by drawing the text. When the control is resized, the text inside it should also be resized according to the size of the control. Either height of the text or width of the text or both need to be resized. So I need to determine the font size based on the current client rectangle. How do I do this? Is there any other way of resizing the text? I am using .Net 2.0. Your help is highly appreciated. Thanks in Advance. Regards Kiran Tag: HWND - What can I do with it? Tag: 104962
  - 5
    - Howto create semi-modal popup form in MDI application I'm creating an MDI application in C# 2.0. I need to show a popup form (similar to a dialog) on an MDI child form, such that the popup form is modal to the MDI child form, but without blocking other MDI child forms and obviously without blocking the main application. I know that I can't use Form.ShowDialog() as it disables all windows on the thread, but I'm hoping there's a way to simulate the desired behavior. The popup form has to be associated or parented to the MDI child form so that the user can switch between the open child forms. More than one MDI child form can show a popup form at the same time. Hope someone out the has a suggestion... Regards Henrik Rasmussen Tag: HWND - What can I do with it? Tag: 104950
  - 6
    - Windows Forms Disabled Text Hi, I'm trying to modify the tabCrontrol so I can enable/disable tabs. I've got it all working except it doesn't look like I want it to. When a tab is disabled I want the text to look like a disabled button's text (indented grey?). Is there a simple way to do this (is there a "disabled" font??) or do I have to overlay the grey text over the top of the white?? Thanks Gareth Tag: HWND - What can I do with it? Tag: 104949
  - 7
    - Minimized Forms won't restore Hi, I have a Windows Forms App, written in c# in VS2005 Professional. The application requires the user to log on, and after a period of inactivity they are automatically logged off. The Logon is done on a seperate form, which then shows the main form. The application requires 1024 x 768 resolution (due to graphics), and so if the screen resolution is set to that it runs with no borders / title bars etc. Otherwise it runs normally in a window. I have a problem, in that if the user minimizes the main form, then when they are logged out due to inactivity, the logon form becomes shown minimized. The problem comes when the user then wants to display that form in order to log back on. If the app is running full screen (no title bar etc.) then it will not restore and remains firmly fixed to the task bar. Has anyone seen this problem before and is there a solution? Thanks. Paul Tag: HWND - What can I do with it? Tag: 104948
  - 8
    - Adding a UserControl to the Component Tray I have a base UserControl class - DataModule - to which I have added a SqlConnection and a DataSet. The idea is that users will build on this base class, adding their own SqlCommands as needed, but always using the same connection/dataset (i.e. a simple API). The reason for using a UserControl, is to allow users to drag-and-drop SqlCommands etc. from the Toolbox directly onto the design area; they can then select those objects from the Component Tray and edit their properties. These subclasses of DataModule will then be placed onto another UserControl containing a DataGridView, and the user will connect the DataModule's DataSet to the grid's DataSource. So far, I've got the above working great. However, when I drop a DataModule subclass onto a UserControl, the DataModule is placed on that UserControl's canvas. Because DataModule itself isn't meant to be used as a visual component, it makes more sense for it to appear in the Component Tray instead; however, I can't seem to get this to work. (I've tried the DesignTimeVisible attribute, as well as others.) >From what I've read, it seems that any component that's a subclass of Control cannot be displayed in the Component Tray. Is this correct, and if so, is there any way to work around this? Also, if you think this implementation is incorrect, please tell me! (I am using .NET 2.0 with Visual Studio 2005 Professional.) TIA. Tag: HWND - What can I do with it? Tag: 104946
  - 9
    - How can I control positioning of child windows in an MDI form? Hello I have a question about CHILD forms in an MDI form. How can I have a neat positioning of child windows in an MDI form? When I open a new child window in my MDI form it is opened in a new cascading position but when I opens a lot of forms, it goes out of the borders of the MDI form and a scroll bar appears in the MDI form. Is there a neat positioning of child windows in an MDI form? Any help (or link) is appreciated. Hamed Tag: HWND - What can I do with it? Tag: 104942
  - 10
    - MDI Form Position Hello Two questions about positioning: When I run my MDI application developed by VS.NET 2003, the MDI window is opened in a new place and after some run again and again, it opens in a position that some borders of MDI form goes out of the desktop. The WindowState of MDI form is in Normal state. Q1: How can I open my form in a position that the form is not gone out of desktop Q2: How can I position in the same position as previously opened in the last run. Thanks in advance. Hamed Tag: HWND - What can I do with it? Tag: 104941
  - 11
    - How to suppress new-data row in datagrid with parent-child data Hi All, I have a form set up with a data source which has a parent-child relationship. The parent table is bound to a combo box, and the child to a datagrid. I want the datagrid to show the child records for the parent selected in the combo. I know how to do this, and it all works fine. But I cannot suppress the datagrid row with the * against it, where a new row can be entered. >From what I have read, the way to do this is to make the data source for the datagrid a DataView, with the AllowAddNew property set False. That's fine, but as soon as I do that I lose the parent-child behaviour - catch 22! Is there a way to suppress the new-data row in the grid, AND preserve the parent-child behaviour I need? It sure as hell isn't intuitive! Tag: HWND - What can I do with it? Tag: 104940
  - 12
    - FileDialog (SaveFileDialog & OpenFileDialog) does not add extension I use FileDialog's quite often, but this one thing really bothers me: The FileDialog.AddExtension property is supposed to control whether the extension of the selected filter is automatically appended to the filename or not, also depending on the CheckFileExists property (according to http://msdn2.microsoft.com/en-us/library/system.windows.forms.filedialog.addextension.aspx). However, with FileDialog.AddExtension set to true and regardless of the state of FileDialog.CheckFileExists propetry, the extension is NOT appended to the filename. Can someone please help me why this is? (For information, I used the filter "C-Sharp Files|*.cs|Text Files|*.txt|All Files|*.*" and DefaultExtension "cs" if it makes any difference) Tag: HWND - What can I do with it? Tag: 104932
  - 13
    - .NET Framework 3 Can Framework 3 be used with VB Express? Tag: HWND - What can I do with it? Tag: 104929
  - 14
    - Form.TopMost behaviour I'm a bit confused regarding the behaviour when setting the Form.TopMost property. If setting the property to 'true', does it make the form top-most of all windows in all applications, or only the form's application ? Searching google, I've found people claiming it's enough to set TopMost in order for the form to be top-most of all windows in the system, and other say that a call to Win API's SetWindowPos (with HWND_TOPMOST as a parameter) is needed. So, which is correct? Tag: HWND - What can I do with it? Tag: 104928
  - 15
    - how to show a form or process command line args Hello. I would like to write a console application and windows form application all in one. If there are command line arguments, then I would treat it as a console app. Otherwise, I would display a form. I'm having trouble doing this. Any ideas?? Here's what I did so far: 1) Create a new console application 2) In the Main, i use this code, but it only briefly displays the form, then it goes away. The code looks like this: Sub Main(ByVal args() As String) If args.Length = 0 Then Dim frm As New frmMain frm.Show() frm.Focus() Else '.... End If End Sub Thank you in advance for your response! Steve Tag: HWND - What can I do with it? Tag: 104925
  - 16
    - Consuming JavaScript events fired in AxWebBrowser control I have an AxWebBrowser control in a C# app. I'd like to have my C# app capture, say, an OnClick event of an HTML element in the AxWebBrowser document. Is this possible? TIA Jared Tag: HWND - What can I do with it? Tag: 104923
  - 17
    - Changing default header/footer when printing from AxWebBrowser I've wrapped the web browser control in a user control, and I'm able to print using the execCommand("Print") method. However, this puts "Page X of Y" in the header, and "about:blank" and the date in the footer. How can I override the default header and footers? TIA Jared Tag: HWND - What can I do with it? Tag: 104922
  - 18
    - Validating a DataGridViewComboBoxCell on focus lost Hi, i would like to make a DataGridViewComboBoxCell (which often is the last-edited one) validate in such a way that when the datagrid lost the focus the ComboBox cell Text property is setted to the combobox Value property. I've already written all the code needed to change the ComboBox view from a only-pushbutton style to a combobox style (with the text box editable i mean) and to add the Text value to the ComboBox Items and then setting the Value property of the ComboBox to the original Text value. But all works correctly only if i change the focus from the ComboBox cell to another cell. Instead if i click a button outside the DataGridView the cell is not validated and so the Value is not setted and remains null. Is there a way to cause the validation of the DataGridView (and of the ComboBox cell as well) when the DataGridView lost focus? thanks Tag: HWND - What can I do with it? Tag: 104921
  - 19
    - BeginInvoke and user-interaction I have a datagrid whose datasource is being updated by a function started by BeginInvoke. If the user (as the datagrid is being populated) drags the scrollbar (or even clicks it and doesn't release the mouse-button) the datagrid-population is being stopped. When the user release the mouse-button the datagrid-population is continued. I would like the population of the datagrid to continue while the user drags the scrollbar. Is it possible and how can I achive this? Thanks Tag: HWND - What can I do with it? Tag: 104915
  - 20
    - What causes exception in ComboBox When selecting last item in combobox I receive the following exception in VS: System.ArgumentOutOfRangeException was unhandled Message="InvalidArgument=Value of '31' is not valid for 'index'. Parameter name: index" ParamName="index" Source="System.Windows.Forms" StackTrace: at System.Windows.Forms.ComboBox.ObjectCollection.get_Item(Int32 index) at System.Windows.Forms.ComboBox.UpdateText() at System.Windows.Forms.ComboBox.WmReflectCommand(Message& m) at System.Windows.Forms.ComboBox.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.SendMessage(HandleRef hWnd, Int32 msg, IntPtr wParam, IntPtr lParam) at System.Windows.Forms.Control.SendMessage(Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.Control.ReflectMessageInternal(IntPtr hWnd, Message& m) at System.Windows.Forms.Control.WmCommand(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam) at System.Windows.Forms.NativeWindow.DefWndProc(Message& m) at System.Windows.Forms.Control.DefWndProc(Message& m) at System.Windows.Forms.Control.WmCommand(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ComboBox.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(Form mainForm) at FAST.AppMain.Main(String[] args) in C:\Dev\client_dev_shared_FAST2\FAST_UCM\FAST\client\FASTGUI\FAST Application\Main.vb:line 25 at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() I dont have any event handlers for the combobox and I'm not catching any exceptions with the VS debugger. What gives, another bug? Tag: HWND - What can I do with it? Tag: 104914
  - 21
    - Windows Forms Stylesheets? Is there anything equivalent to CSS for use in windows forms? Iâ??d like to be able to have the colors and fonts determined by some kind of configuration file (ala Cascading Style Sheets) so that individual application users can customize the user interface to there taste. Is there any simple way to accomplish this? If not, does anyone have any suggestions for methods or strategies to accomplish this? Oh... by the way, I'm using Visual Studio 2003 & VB.NET but would happily use Visual Studio 2005 if this functionality was built in. Thanks, Jonathan Tag: HWND - What can I do with it? Tag: 104910
  - 22
    - datetime I have a date value in a database and I want to show it's value on a form. It is bound to the data and shown with a datetimepicker. When the value in the database is null, an incorect value is shown on the form. is there a way to get null to show when it is null? Tag: HWND - What can I do with it? Tag: 104901
  - 23
    - Display ToolTip on TextBox (Created on VS2003 using C#) I have derived the TextBox control to create my own control that does a lot of filtering and autocorrection of user input. I want to be able to give feedback to the user when there's a problem the input he's trying to do. A good example is in Windows XP if you go to windows explorer and in the folders view try to rename a directory with "\", this will result in a arrow tooltip to display saying that certain characters are forbidden. I was thinking of adding a ToolTop control to my TextBox control (yes I know it's wasteful, but I could work something so they all use the same tooltip, that I will work on later). Now in 2003 there's no .Show(...) method for the ToolTip control, and I don't think my company is gonig to migrate to 2005 before this week, when I have to release the software. Has anyone beem able to show the tooltip programatically without waiting for the user to do a hover? Thanks Tag: HWND - What can I do with it? Tag: 104900
  - 24
    - Detect if Workstation is locked Hi, I want to detect in my C# app (can use iterop) if the workstation is locked. I've seen on the web people saying it's impossible except by looking if the Screensaver process is running. There must be a clean way of doing it because MSN detects it and can change your status based on this. Does someone have a solution to this please? thanks ThunderMusic Tag: HWND - What can I do with it? Tag: 104884
  - 25
    - Form - mouse selected I'm trying to enable my disabled menu options (cut, copy & paste). The requirement is to determine what on my form has been selected with the mouse. How can I determine this? Tag: HWND - What can I do with it? Tag: 104877
- Next
  - 1
    - Forcing DataGridView to repaint a row/disabling a row I have a datagridview that is bound to a datasource. The under lying data is not from a database, but biz objects. The first colume (InUse) is a check box to determine if the rest of the row is enabled. When the row is not in use, it is grayed out in the CellFormatting event. After the user checks the InUse colume, the rest of the row does not get repainted. Is there a better way to control editablity of individual rows? If not, how do I go about making the whole row get updated correctly? As I click on the different cells and leave them, they change to the correct color. Tag: HWND - What can I do with it? Tag: 104876
  - 2
    - outlook 2003 left panel look in c# Hi I'm wondering how can i make a control that looks like the left panel of outlook 2003 , i'm talking about the low part where you see mail, calendar, contacts. this panel you can set the height and the number of 'button' will change there is also a configure button to it. how can i build a control that will look like that using C# 2.0 control, I know that some 3rd party sell those but i don't want to buy those. thanks Tag: HWND - What can I do with it? Tag: 104874
  - 3
    - ComboBox Binding Problem I am binding a Collection Business Object to a ComboBox in Visual Basic 2005 in a Windows Form Application. The SelectedValue is then bound to another Business Object. When I create a new instance of the object I can use the Combo to look up values but display member is being cleared on losing focus. DisplayMember, Value Member, etc is set as per documentation and per other similar threads in newsgroups. Some are reset after component initialised to be doubly sure they are set. On Editing existing records combo does not display any value, even though when tested the selected value is correct. I tested code in same form with Janus Combo and it worked perfectly using properties displaymember, valuemember and SelectedValue (Using DataSourceUpdateMode.OnPropertyChanged ). This would lead me to view I am doing everything correctly but the MS Combo is not behaving correctly. Can anyone shed any light on this, is there a bug with the control? Regards Tag: HWND - What can I do with it? Tag: 104873
  - 4
    - TypeDescriptor get Conveter attached to a property I have class that has a property wich has a custom typeconverter: class A { private string _property; [TypeConverter(typeof(MyTypeConverter))] public string Property { get { return _property; } } } How can I get an instance of this typeconverter? When I do A a = new A(); TypeDescriptor.GetConverter(a); I get an instance of the default Typeconverter attached to the class A (as expected). When I do TypeDescriptor.GetConverter(TypeDescriptor.GetProperties(a)[0].GetValue(a)); I get an instance of the default Typeconverter of the class string (as expected). How would I retieve the instance of MyTypeConverter attached to Property ? Tag: HWND - What can I do with it? Tag: 104872
  - 5
    - outlook 2003 left panel in c# Hi I'm wondering how can i make a control that looks like the left panel of outlook 2003 , i'm talking about the low part where you see mail, calendar, contacts. this panel you can set the height and the number of 'button' will change there is also a configure button to it. how can i build a control that will look like that using C# 2.0 control, I know that some 3rd party sell those but i don't want to buy those. thanks Tag: HWND - What can I do with it? Tag: 104869
  - 6
    - Custom Control with Transparent Background /* How can I give my custom System.Windows.Forms.Control a transparent background? In the small application below, I expect to see two partially overlapping circles, a blue one and a red one, but only the blue circle appears. When the background of the controls iis transparent, both circles will show. If this feature is not available or only through some kind of hack, what is the reason that Microsoft does not support controls with transparent background? */ using System.Drawing; using System.Windows.Forms; //class ColorCircleControl class ColorCircleControl:Control { //data member brush Brush brush; //data members x,y int x; int y; //constructor public ColorCircleControl(Brush a,int b,int c) { brush=a; x=b; y=c; SetStyle(ControlStyles.SupportsTransparentBackColor,true); BackColor=Color.Transparent; Dock=DockStyle.Fill; Paint+=OnPaint; } //OnPaint void OnPaint(object a,PaintEventArgs b) { b.Graphics.FillEllipse(brush,x,y,55,55); } } //class MyForm class MyForm:Form { //constructor public MyForm() { Controls.Add(new ColorCircleControl(Brushes.Blue,34,55)); Controls.Add(new ColorCircleControl(Brushes.Red,55,55)); ClientSize=new System.Drawing.Size(233,144); } //Main [System.STAThread] static void Main() { System.Windows.Forms.Application.Run(new MyForm()); } } Tag: HWND - What can I do with it? Tag: 104868
  - 7
    - GDI objects count Hello all, Can somebody help me out regarding how to maintain the GDI objects count in my application it keeps on incrementing and once reaches to 10000 the application dies. Can somebody point to me some sample application which could help me to understand how exactly manage the object disposal I have been reading the articles for memory management and GC but things are getting more and more confused to me. Needed help urgently Thanks in advance Tag: HWND - What can I do with it? Tag: 104866
  - 8
    - The good old Cross-thread operation not valid Hi, Does anyone know if there is a better solution for the good old "Cross-thread operation not valid" than dealing with delegates and Invokes? (This happens when you access GUI from a thread that did not create it) I realize that the problem is based on the old Windows requirement (only thread that created the window shalt process its messages) but it is 21 century and the new VS 2005 was supposed to be all about productivity, concentrate on your buisness logic and do not write plumbing code etc... If poluting your code with delegates and Invokes just to do (txtBox1.Text = "Blah") is not plumbing I am not sure what is.... Anyway, does anyone know if a better, more straightforward solution exist? I guess the anonimous methods help a bit but it is still pretty ugly. I also read about the BackgroudWorker component but that one is not very intuitive either... Ivan Tag: HWND - What can I do with it? Tag: 104858
  - 9
    - Performance of form controls refreshing on Resize Hi, I'm a little new to forms programming with C#, so I'd appreciate some pointers on how I can improve the (perceived) performance of my form when it's resized. My form contains a TabControl, which has a couple panels, about 15 text boxes + labels, and two comboboxes, all bound to a custom object. When I resize the form, the controls on the form seem to resize/repaint very slowly. I had thought there's a way to hide this repainting of each control, to make the overall operation appear faster, but I'm not sure where to handle that. Thanks for any pointers, Michael Tag: HWND - What can I do with it? Tag: 104856
  - 10
    - Tracing not allowed in installed winforms application I have tracing set up in my application to write out to a log file. Now If I install the application from my setup project and try to run it, I am getting an exception that says something along the lines of: "UnauthorizedAccessException: ... Access to the path ...\myAppLogFile.log is denied" I checked the permissions of the directory inside of program files and sure enough, only administrators were allowed to Modify the files in the directory. I was logged in as a non-administrator when I was testing. When logged in as adminstrator, no problems arise. Does anyone know of a good approach to this? Perhaps I should modify the directory permissions on install? Thanks, Jonathan Tag: HWND - What can I do with it? Tag: 104850
  - 11
    - Crystal Reports 'Logon failed' error I have read all the postings in this forum for this dreaded unpopular error, but I haven't found a resolution to my problem yet and I really need to get this bug resolved. I have a winforms app written in VS 2002 which contains a number of Crystal Reports, all of which were working fine. I had to change the data source of 1 report from Stored Procedure A to Stored Procedure B in my SQL Server 2000 db. Connections are made through ODBC, not integrated security. I was able to do this without difficulty by resetting the Location of the report source, but when I try to open the report at run-time, the following occurs: - prompt appears asking for db password. server name, db name, and username are prefilled. - when correct password entered, 'Logon Failed' message appears - when correct password entered a second time, login box disappears and report displays I am logging on in code every time I load any Crystal Report, and none of the others give me this prompt. All reports are loaded into the same report viewer on the same page; I just have a long select case statement which indicates which report to load. I would really appreciate any help you could offer. Here is the complete code: Sub PrintReport(ByVal strRpt As String, ByVal strSp As String, ByVal ParamArray paramValues() As Object) 'Prints selected Crystal Report 'Params: 1. Name of report to print '2. Stored Procedure to run '3. Array of Paramater names & values Dim objRpt As Object Dim crTable As CrystalDecisions.CrystalReports.Engine.Table Dim crLogonInfo As New CrystalDecisions.Shared.TableLogOnInfo() Dim objData As New BusinessRules.CDataAccess() Try '1. Create selected report object Select Case strRpt Case "rptcarrierform" objRpt = New rptcarrierform() Case "rptInvoice" objRpt = New rptInvoice() Case "rptInvoiceCharges" objRpt = New rptInvoiceCharges() Case "rptCreatedInvoices" objRpt = New rptCreatedInvoices() If Not IsNothing(objFrm) Then objFrm.Close() End If Case "rptNoInvoice" objRpt = New rptNoInvoice() Case "rptWSIB" objRpt = New rptWSIB() Case "rptManifest" objRpt = New rptManifest() Case "rptRunningOrder" objRpt = New rptRunningOrder() Case "rptBrokerage" objRpt = New rptBrokerage() Case "rptBrokerage2" objRpt = New rptBrokerage2() Case "rptMedical" objRpt = New rptMedical() Case "rptLicense" objRpt = New rptLicense() Case "rptAccruals" objRpt = New rptAccruals() Case "rptCancelled" objRpt = New rptCancelled() Case "rptInvoice2" objRpt = New rptInvoice2() End Select '2. Connect to db rptViewer.LogOnInfo = New CrystalDecisions.Shared.TableLogOnInfos () crLogonInfo.TableName = strSp & ";1" objData.ReportLogin() With crLogonInfo.ConnectionInfo .ServerName = objData.ServerName .DatabaseName = objData.DatabaseName .UserID = objData.UserID .Password = objData.Password End With rptViewer.LogOnInfo.Add(crLogonInfo) '3. Add Report Parameters SetParameters(paramValues) '4. Bind data and display report rptViewer.ReportSource = objRpt rptViewer.Show() Catch objError As Exception CException.LogError(objError) End Try Me.Cursor.Current = Cursors.Default End Sub Private Sub SetParameters(ByVal ParamArray parameterValues() As Object) Dim ParameterFields As CrystalDecisions.Shared.ParameterFields Dim ParameterField As CrystalDecisions.Shared.ParameterField Dim spValue As CrystalDecisions.Shared.ParameterDiscreteValue Dim p As SqlParameter Try If Not parameterValues Is Nothing AndAlso parameterValues.Length > 0 Then ParameterFields = New CrystalDecisions.Shared.ParameterFields () For Each p In parameterValues If (Not p Is Nothing) Then ParameterField = New CrystalDecisions.Shared. ParameterField() spValue = New CrystalDecisions.Shared. ParameterDiscreteValue() ' Check for derived output value with no value assigned If (p.Direction = ParameterDirection.InputOutput OrElse p.Direction = ParameterDirection.Input) AndAlso p.Value Is Nothing Then spValue.Value = "NULL" 'DBNull.Value End If 'Set parameter name & value ParameterField.ParameterFieldName = p.ParameterName spValue.Value = p.Value 'Add to parameter collection ParameterField.CurrentValues.Add(spValue) ParameterFields.Add(ParameterField) End If Next p 'Add parameter collection to Report Viewer rptViewer.ParameterFieldInfo = ParameterFields End If Catch objError As Exception CException.LogError(objError) End Try End Sub -- Message posted via http://www.dotnetmonster.com Tag: HWND - What can I do with it? Tag: 104847
  - 12
    - return value I had this working and now it's not. I call one form from another then I return a value to the first. I had a public sub in the parent form that the child would call and set the variable. The value in the parent form always ends up 0 now. Even though it appears the value the child is sending is correct. As soon as the child form closes the value resets to zero. I'm not sure why it was working before and now is not. Can anyone explain my error? Tag: HWND - What can I do with it? Tag: 104846
  - 13
    - get form Hi I have a windows application. This application opens some forms. I wold like to get the first form (the one includes main) from the other forms and call some functions in that form. How do I do this? I know Thanks Julia Tag: HWND - What can I do with it? Tag: 104845
  - 14
    - DataBinding to DataGridView AND TextBoxes? Hi, My problem: When the cursor is on a given row in the DataGridView, the data in the row has to be shown in TextBoxes underneath the DataGridView. the user must be able to edit in the Datagridview, or in the textboxes. The text in these textboxes and the datagridview has to be synchronsied at all time. So if the user types "a" in the Name-Column, the "a" has to appear immediately in the Textbox etc. This doesn't seem to be as easy as I thought. I used a BindingSource, and I handle the EditingControlShowing_TextChanged-event of my DataGridView, and in that handler I force commits after each keypress (Me.dgvArticles.CommitEdit(DataGridViewDataErrorContexts.Commit) ) and do a ResetCurrentItem of my BindingSource. But this doesn't work always, not when it's the first time a suer selects a row etc etc etc... So: a lot of trouble, and still not the desired result. Does anybody knows how to do this? I would help me really a lot! Thanks a lot in advance, Pieter Tag: HWND - What can I do with it? Tag: 104839
  - 15
    - Making sure special characters display correctly I will admit it up front, ever since some version of DOS went global, I've gotten a headache everytime I even contemplated codepages:-) I want to be able to display three special characters, in one case as the password character, and in the other cases as the text on a small button in a datagridview. I've scanned over the postings and the recommended KB articles and if I wanted to do a web page in Korean or process a document around in Hebrew, i think i could do it. What I can't do is make the some simple code work:-((( Essentially all I coded was textbox.passwordchar = "â?º" ' character is a smiley My stupidity was selecting a font for the dialog that did not have â?º in it. (Verdana) Yet. it worked fine at the office. Out at the client site i got a square box instead. I solved the problem by making sure all the relevant controls used Arial even if the rest of the dialog was using Verdana. So I have questions to help me understand what is going on. My client is using XP in a Detroit suburb so there is nothing fancy going on. What settings for the OS should I look at to see why it worked at the office but not at their site? (Charmap for shows the stuff of interest just fine. A test console app at their site shows the characters of interest just fine. It's the windows app that has problems.) I just repeated the exercise here at the office. With the font of the textbox defaulting to verdana 9 pt - as confirmed by a msgbox display of the font name - i get some appropriately scrunched up smiley face as I type. With the font set at Arial 11 i get a big bold face as I type. QUESTION: What mechanism is causing Framework to display a character that isn't in the font, i.e. the scrunched smiley when the font is set to Verdana? It gets even weirder. With the font set to verdana, i turned the password character off (there is a check box for that, something I wish all programs provided for the mornings we aren't typing quite right:-). Then I copied some Hebrew off charmap and pasted it into the textbox. It worked! I copied â?²â?ºâ?¼â?? and got the phenomenon I'm seeing here. The Up and Down arrows are in one size and the left and right in a different size. QUESTION: What is going on here????? -- Regards, Al Christoph Senior Consultant Three Bears Software, LLC just right software @ just right prices @ 3bears.biz Microsoft Certified Partner (ISV) Coming soon: Windows Mail tools for Vista. Tag: HWND - What can I do with it? Tag: 104838
  - 16
    - ReportViewer... "the handle is invalid" Hi all, Posting this again using my shiny new posting alias (so an MS representative will respond). Using the 2.0 framework (no hotfixes) I'm trying to print a report without previewing it. The code looks like: public partial class fErrors : Form { private DataImportServices.ImportError[] _Errors; public fErrors() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { ImportErrorBindingSource.DataSource = _Errors; reportViewer1.RefreshReport(); } private void reportViewer1_RenderingComplete(object sender, RenderingCompleteEventArgs e) { // // Report finished let the user choose a printer // reportViewer1.PrintDialog(); } } The report viewer is initialized as follows: reportDataSource1.Name = "DataImporter_DataImportServices_ImportError"; reportDataSource1.Value = this.ImportErrorBindingSource; this.reportViewer1.LocalReport.DataSources.Add(reportDataSource1); this.reportViewer1.LocalReport.ReportEmbeddedResource = "DataImporter.rErrorsList.rdlc"; this.reportViewer1.Location = new System.Drawing.Point(251, 11); this.reportViewer1.Name = "reportViewer1"; this.reportViewer1.Size = new System.Drawing.Size(149, 28); this.reportViewer1.TabIndex = 3; this.reportViewer1.Visible = false; this.reportViewer1.RenderingComplete += new Microsoft.Reporting.WinForms.RenderingCompleteEventHandler(this.reportViewer1_RenderingComplete); Roughly speaking the report is just a simple listing of errors... a line number and error message/description (the errors just happen to be returned by a webservice... but I don't think that is related to the problem). When I click the print button (button1) I'm prompted with the select printer dialog, I do not change anything... just click print (I have a default printer, a Dell 1710n, Adobe PDF, and a fax printer). The processing dialog appears... and then boom an exception. The specific exception is: System.Reflection.TargetInvocationException was unhandled Message="Exception has been thrown by the target of an invocation." Source="mscorlib" StackTrace: at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Delegate.DynamicInvokeImpl(Object[] args) at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj) at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme) at System.Windows.Forms.Control.InvokeMarshaledCallbacks() at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ContainerControl.WndProc(Message& m) at System.Windows.Forms.Form.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Form.ShowDialog(IWin32Window owner) at System.Windows.Forms.Form.ShowDialog() at DataImporter.fMain.cmdImport_Click(Object sender, EventArgs e) in ...\My Documents\Visual Studio 2005\Projects\DataImporter\DataImporter\fMain.cs:line 564 at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(Form mainForm) at DataImporter.Program.Main() in ...\My Documents\Visual Studio 2005\Projects\DataImporter\DataImporter\Program.cs:line 21 at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() The inner exception is: System.ComponentModel.Win32Exception "The handle is invalid", Error code: -2147467259 Source: System.Drawing Stack trace: at System.Drawing.Printing.StandardPrintController.OnStartPrint(PrintDocument document, PrintEventArgs e) at System.Windows.Forms.PrintControllerWithStatusDialog.OnStartPrint(PrintDocument document, PrintEventArgs e) at System.Drawing.Printing.PrintController.Print(PrintDocument document) at System.Drawing.Printing.PrintDocument.Print() at Microsoft.Reporting.WinForms.ReportViewer.PrintDialog() at DataImporter.fErrors.reportViewer1_RenderingComplete(Object sender, RenderingCompleteEventArgs e) in ...\My Documents\Visual Studio 2005\Projects\DataImporter\DataImporter\fErrors.cs:line 80 at Microsoft.Reporting.WinForms.ReportViewer.OnRenderingCompleteUI(ProcessThreadResult result, PostRenderArgs postRenderArgs) and Target site is : {Void OnStartPrint(System.Drawing.Printing.PrintDocument, System.Drawing.Printing.PrintEventArgs)} This exact error condition is also mentioned in the following posts: http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=541808&SiteID=1 http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=216364&SiteID=1 http://groups.google.sm/group/RS2005/browse_thread/thread/ac870db0bf8cc3db/548ad83c984f3192?hl=it#548ad83c984f3192 One of the posts seemed to suggest the problem might be printer model specfic... so I tried printing to the Adobe PDF "printer"... worked like a charm. So... is this a known problem with the reportviewer? Is there any workarounds? Is there anything I can do to help pin the problem down further? Regards, Rob M. -- rmacfadyen@nospam.nospam Tag: HWND - What can I do with it? Tag: 104836
  - 17
    - Get Latest version on startup Hi, Anyway to hide the dialog box when getting latest version on project startup. Tag: HWND - What can I do with it? Tag: 104835
  - 18
    - Best Practice from Oracle DB to DataGridView Hi, I'm wondering whats the best practice to accomplish the following display in a DataGridView. 1. Perform a Query to an Oracle DB with a multiple join select that returns multiple rows. (Should I use a DB object i.e. Stored Procedure, Function, View, or nothing) 2. Bind the rows/data to a DataGridView via DataAdapter or DataTable/Set. What is most people/the best practice for doing the listed? I heard using ref Cursors but they cause headaches. Is there a practice that allows me to do everything via the VS2005 IDE? Thanks in advance. Newton Tag: HWND - What can I do with it? Tag: 104834
  - 19
    - Publishing from a ClickOnce deployment project How do you publish from a deployment project? I know how to publish from the solution (right-click select publish and use the publish wizard) but now I want to do the same steps automatically in a deployment project. If I need to use a custom action, what do I actually need to do within the custom action to get the application to publish. Tag: HWND - What can I do with it? Tag: 104826
  - 20
    - ComboBox binding to subset of another ComboBox This is for a Windows Forms application... I am wanting to set up binding once, if possible, for a second combobox that contains filtered data based on the first. I know I can capture the event of the first combobo and then bind the second based on the value, but was hoping that there is an easier/better way. Here is the scenario class Car { Guid carID; int year; string carName; } class Manufacturer { Guid id; string name; List<Car> cars; } class MyCollection { List<Manufacturer> makers; } private void MyControl_Load( object sender, EventArgs e ) { cboMaker.DisplayMember = "Name"; cboMaker.ValueMember = "ID"; cboMaker.DataSource = makers; cboCar.DisplayMember = "CarName"; cboCar.ValueMember = "CarID"; cboCar.DataSource = ??? <<<<<<<<<<<<<<<< } Thanks, Dave Tag: HWND - What can I do with it? Tag: 104818
  - 21
    - Tooltip in TreeView control Hi, I have a TreeView control in my project (I am working with VS2003, C#). I also have a tooltip attached to it, which I use to display special information once user places (MouseMove) the mouse on a TreeNode. The TreeView control has a basic behaviour that once a TreeNode text (name) exceeds the size of the control, a tooltip is displaying the TreeNode text (name). now I have two tooltips showing: 1. treenode text (name). 2. my special information. My aim is to prevent the first tooltip from showing. I tried to override WndProc() in the following way: protected override void WndProc(ref Message m) { if(m.Msg == TTN_SHOW) { //ignore tooltip show message return; } base.WndProc (ref m); } IT DID NOT WORK! I defined TTN_SHOW to be (found it in commctrl.h): TTN_FIRST = (0U-520U) TTN_SHOW = (TTN_FIRST - 1) Apperantly this is not the message the control receives :( could somone explain why? Tag: HWND - What can I do with it? Tag: 104816
  - 22
    - About maximizing the forms into the task bar. Hi all, I am doing an desktop application in vb.net. For forms i have used the property formborderstyle=none. So what happens when i minimize the form into the task bar,and again right click on the form i could not the maximize or minimize or restore. So please let me know how to do this. -- Regards, Ravindra P.N Tag: HWND - What can I do with it? Tag: 104814
  - 23
    - Display of tab control pages I know how to stop a user selecting a different tab page (see Disable tab control pages in this newsgroup). Can I also change the text colour of the tab page header so that it appears 'disabled'? I can only find colour properties for the tab page itself. -- Steve Tag: HWND - What can I do with it? Tag: 104810
  - 24
    - DataGridView - How to disable jumping on next row on Hit ENTER? Hello, I have problem, on modal dialog, user has to select one value from DataGridView. AcceptButton is set on Form, but DataGridView jump on next row on user Enter, so wrong row is selected. Any suggestion how to disable jumping to next row when user hit Enter button? Thanks MilanB Tag: HWND - What can I do with it? Tag: 104805
  - 25
    - Weird MDI Issues Hi I have the problem that my C# MDI application shows the default VS icon instead of the child window icon next to the menu bar if the child window is maximized from the beginning. I have found a thread from 2003 describing this exact same problem (http://groups.google.dk/group/microsoft.public.dotnet.framework.windowsforms/browse_thread/thread/79b2c2a015e01f0f/4978aa6b78d60cf6?lnk=st&q=%22Weird+MDI+Issues%22&rnum=1&hl=da#4978aa6b78d60cf6). In the thread Ying-Shen Yu from Microsoft acknowledge the problem and writes that this will be solved in the next version of VS. The problem is that I am using VS 2005 which must be "the next version of VS" as the answer from mr. Yu was written in 2003. So what has happened to this bug-report - has it simply been ignored? /Peter Btw: The work-around of setting the WindowState after calling Show() suggested by mr. Yu still works even though it is not very elegant (you can see the window being maximized). Tag: HWND - What can I do with it? Tag: 104804

I am working on extending an NSIS installer and I want to use .NET
windows forms controls within it, can I create a .NET control on the
NSIS parent form with just the HWND of the parent form?

For example, I want to create a .NET listview on a form in NSIS, is
this possible?

I am pretty ignorant as to the capabilities of the Windows API for
things like this and would appreciate any comments or help you could
offer.

Thanks!

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