Tab Control Behaviour

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- Previous
  - 1
    - Tab Control Problem SelectedIndexChanged Event for Tab Control is not fired in .Net Framework 2.0 but it gets fired in .Net Freamework 1.1 and this behaviour happens till the form is not shown to the user. After displaying the form this event starts working fine. Is this a known problem. Tag: Tab Control Behaviour Tag: 96126
  - 2
    - inspector window problem I have a window with multiple inspector window. When the *Application* lose the focus I would like to hide all inspector windows. I cannot use the activate/deactivate event on the main window, because it deactivate if I click on any inspector windows. How could I do that? -- Regards, Lloyd Dupont NovaMind development team NovaMind Software Mind Mapping Software <www.nova-mind.com> Tag: Tab Control Behaviour Tag: 96124
  - 3
    - control validation problem I have create a control which CauseValidation=true (let's call it ValidatingControl) I have created another control reacting to user action.(let's call it GuiControl) Now my problem is: If my ValidatingControl is not valid and I click on some other gui element, such as a CheckBox or the close button of my window, nothing happen: which is fine and expected. But if I click on my GuiControl it react on user input as usual, regardless of the fact my ValidatingControl is not valid. So the question is: how do I check in my GuiControl wether or not I'm allowed to react to user input (i.e. that there are no pending validation)? -- Regards, Lloyd Dupont NovaMind development team NovaMind Software Mind Mapping Software <www.nova-mind.com> Tag: Tab Control Behaviour Tag: 96122
  - 4
    - Windows Forms framework Greetings, I was wondering if there is a framework in .NET world similar to what Eclipse is in a Java world. Could "Composite UI Application Block" be compared to Eclipse? Thanks. Tag: Tab Control Behaviour Tag: 96121
  - 5
    - Round edge panel: edges not smooth I am creating a round edge panel by inheriting from the panel. What I do is create a graphics path with desired shape and in the Paint method I fill the graphics path and draw the graphics path border with desired color. This would look as if the panel has round edges. So far I have not set the region. Bounds of the panel is still the rectangle. But the problem come when I set the region of the panel to the Graphics path region. It would not draw the borders( especially left and bottom) properly, it would not draw the curves properly. Also if I set the background image , the image is not smooth along the borders even though I set smoothing mode to AntiAliasing . Any ideas on why it is behaving this way would be greately appreciated. Here is the code in Paint method protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) { Graphics gr = e.Graphics; gr.SmoothingMode = SmoothingMode.AntiAlias; if(_roundedCorners) { // clear background with the parent's backcolor before drawing the round edges gr.Clear(Parent.BackColor); gr.DrawPath(_borderPen, _roundedEdge); // now fill with actual color gr.FillPath( _graphicsPathBrush,_roundedEdge); // setting the region of the control this.Region = new Region( _roundedEdge); // this is where the problem comes } } Here is the method where I create the path protected void CreatePaths() { // Create _roundedEdge _roundedEdge = new GraphicsPath(); _roundedEdge.AddLine(_topLeftEdgeRadius, 0, Width - _topRightEdgeRadius - 1, 0); _roundedEdge.AddArc(Width - _topRightEdgeRadius - 1 - _topRightEdgeRadius, _topRightEdgeRadius - _topRightEdgeRadius, 2 *_topRightEdgeRadius, 2 *_topRightEdgeRadius, -90, 90); _roundedEdge.AddLine(Width - 1, _topRightEdgeRadius, Width - 1, Height - _bottomRightEdgeRadius - 1); _roundedEdge.AddArc(Width - _bottomRightEdgeRadius - 1 - _bottomRightEdgeRadius, Height - _bottomRightEdgeRadius - 1 - _bottomRightEdgeRadius, 2 *_bottomRightEdgeRadius, 2 *_bottomRightEdgeRadius, 0, 90); _roundedEdge.AddLine(Width - _bottomRightEdgeRadius - 1, Height - 1, _bottomLeftEdgeRadius,Height - 1); _roundedEdge.AddArc(0, Height - _bottomLeftEdgeRadius - 1 - _bottomLeftEdgeRadius, 2 *_bottomLeftEdgeRadius, 2 *_bottomLeftEdgeRadius, 90, 90); _roundedEdge.AddLine(0,Height - _bottomLeftEdgeRadius - 1, 0, _topLeftEdgeRadius); _roundedEdge.AddArc(0, 0, 2 *_topLeftEdgeRadius, 2 *_topLeftEdgeRadius, 180, 90); } Thanks, VPMahank. Tag: Tab Control Behaviour Tag: 96118
  - 6
    - Strange behaviour of Form.WindowState.Maximized in Form.Activate event Hi, I am experiencing problem with changing the Form.WindowState property of the Child form in the MDI Winform Application. If I change the 'WindowState' property to 'Form.WindowState.Maximized ' in the Form Activate event of the MDI child form I will get double Control/System menu box for this form. By closing the form there is Control/System menu box left behind. If I repeat the process the number of Control/System menu boxes grows. I am expecting that each form can have only one Control/System menu box. Is this a defect or did I forget to take something into account? Is there known hot fix for this behaviour e.g. another way to maximise MDI child form in Activate Event? I am using VS 2003, .NET 1.1 with SP1, PC is W2K with SP4. Please see my demo below. Thanks Viliam Batka PS: Regardless of unexpected visual effect it can indicates possible memory leak. //=DEMO============================================== // Description: // *Demo for Strange behaviour of FormWindowState.Maximized // in Form.Activate event. // *This C# example is possible to compile as console application // with references to System.Windows.Forms. // Author: Viliam Batka using System; using System.Windows.Forms; namespace ViliamBatka.MdiTest { class MDI_Test { [STAThread] static void Main(string[] args) { // create MDI main form Form fMDI = new Form(); fMDI.Activated += new System.EventHandler(OpenMultipleChildren); fMDI.IsMdiContainer=true; Application.Run(fMDI); } // open multiple MDI childer static void OpenMultipleChildren(Object sender, System.EventArgs e) { for (int i=1;i<10;i++) { Form fChild = new Form(); // add event handler fChild.Activated += new System.EventHandler(Child_Activated); fChild.MdiParent = (Form)sender; fChild.Show(); fChild.WindowState = FormWindowState.Normal; } Form f = (Form)sender; f.WindowState = FormWindowState.Maximized; } // maximize Child Form at Activate event static void Child_Activated(Object sender, System.EventArgs e) { Form f = (Form)sender; f.WindowState = FormWindowState.Maximized; } } } //=END DEMO========================================= Tag: Tab Control Behaviour Tag: 96117
  - 7
    - Placing Custom User Control in a datagrid cell not the whole colum I have been successful in adding controls in a datagrid using the DataGridColumnStyle class but need to have different controls in the same column. Any suggestions on where to start? Tag: Tab Control Behaviour Tag: 96116
  - 8
    - Transparent Layer? I would like to create a panel, completely through code (no designer!), that is the same size as the current winform, and has transparency set to 95%. I am using C# on Framework 1.1 and don't see how to do this. I am tryng to emulate some WebForm behavior where after a button is clicked a "please wait" div is drawn over the page to indicate that somethihg is happening and controls can't be touched, but can mostly be seen. Thanks. Tag: Tab Control Behaviour Tag: 96106
  - 9
    - Rotate Focus How do I rotate focus among controls inside a groupbox/panel? I have 10 controls in my form. Once the focus reaches control5 (using my TAB key), I would like the focus to go to control1. Thanks in advance Tag: Tab Control Behaviour Tag: 96105
  - 10
    - Using .ShowDialog with MDI Children ? Hi, We are trying to build a .NET MDI application with several child windows - some of which should be treated like dialogs and some as true child windows. We keep getting an error when we call Form.ShowDialog(Me) after having set the MDIParent property. Is it not possible in the .NET Framework 1.1 to use dialogs like that? thanks if anyone can help. Philip Tag: Tab Control Behaviour Tag: 96103
  - 11
    - Tiling an image within a rectangle (GDI+) I'm trying to write a routine to tile a given image in a given rectangle: public static void DrawTiledImage(Graphics g, Image image, Rectangle r) { ImageAttributes ia = new ImageAttributes(); ia.SetWrapMode(WrapMode.Tile); g.DrawImage(image, r, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, ia); } Problem is this seems to be stretching the image not tiling it. What am I doing wrong ? Tag: Tab Control Behaviour Tag: 96102
  - 12
    - Problem with CenterParent property Hi All, I have a windows application that has a form that gets sized based on the content of a rich text control. I've set the StartPosition of the form to CenterParent. In design mode the form is about 700 pixels wide. I've handled the SizeChanged event of the richtextbox to set the width of the form. Now the problem I'm facing is that when the form is displayed for the first time the left/top position is calculated on the basis of the original dimensions of the form and not the changed ones. Due to this it does not appear centered in the parent form, though .NET thinks that it positioned the form in the center as it is used the original dimensions to calculate the left/top position. After dismissing the form and opening it again will correctly center it within the parent form, because the width got changed the first time and now the CenterParent is calculated properly. But I want it centered the first time round and everytime. Thanks in advance. SK Tag: Tab Control Behaviour Tag: 96100
  - 13
    - datagridview - Obtener valor =BFC=F3mo puedo obtener el valor de una celda determinada al hacer click sobre una l=EDnea del datagridview en visual basic 2005? Agradecer=EDa enormemente la ayuda, gracias. Tag: Tab Control Behaviour Tag: 96099
  - 14
    - How to use MaskBlt operation in GDI+ Hi, I want to copy some portion of a bitmap(source bitmap) to another bitmap(destination bitmap) using a reference mask bitmap. This task can be acomplished in GDI using MaskBlt function. Is there any such function in GDI+ for doing the same? I saw Bob's "Extract a region from a bitmap" article. In that we are creating region based on the given color and setting it as the region for the form. But in my case, I have the reference mask bitmap. If a particular pixel in the mask bitmap is "WHITE", the corresponding pixel value available in the source bitmap should be copied to destination bitmap. Otherwise, it should be ignored. This process sould be repeated for the entire image. If anyone knows, kindly update. Tag: Tab Control Behaviour Tag: 96098
  - 15
    - RichTextBox not displaying values when another class object is inv I am adding a comment to my file by selecting the file from file list. The AddComment is done through a diff form. i load that form and take values from that form in my Click event of the AddComment button. now, if i set the selected item in list box using SetSelected it is not getting highlighted. if i Append any text to Rtextbox its not displyed(all the previous text also not displayed) Tag: Tab Control Behaviour Tag: 96096
  - 16
    - how to clone a menustrip? I have to implement a function that pop up a context menu which is the same as the main menustrip in the form. but when I create the context menu using the items of the main menustrip, I found that those items are snatched from the menustrip by context menu. For example: ContextMenuStrip.Items.AddRange(MenuStrip.Items); so I think I have to clone the items for context menu. How to do it? I remember there is a method CloneMenu() in MainMenu class, but what is the correspoding method in MenuStrip class? Tag: Tab Control Behaviour Tag: 96092
  - 17
    - WebBrowser control and AddFontMemResourceEx Not exactly a Windows Forms question, but I failed to find a more suitable group. What I'm trying to accomplish is to enable custom fonts (likely embedded into my application as a resource) in the WebBrowser control (2.0). It works just great to add fonts using AddFontResourceEx, providing a path to the font file in question, but because of both legal and technical reasons I would prefer to be able to only just add the font in memory, from an (encrypted) embedded resource. Must the WebBrowser control (Internet Explorer) be able to enumerate the fonts or is there another reason AddFontResourceEx works when AddFontMemResourceEx doesn't? Perhaps there is another way of accomplishing this? WEFT fonts would be OK if there was a way to create them programatically, I guess. /Gunnar Tag: Tab Control Behaviour Tag: 96091
  - 18
    - Opposite to TopMost? Would like to have windows form always as behind other windows (as the 'first' window on desktop) Is there anything like global 'z-index' for all the opened windows in the system? Tag: Tab Control Behaviour Tag: 96088
  - 19
    - Re-initializing controls with new data removing old data Hi everybody, I am creating a program that generates controls like labels and buttons at runtime and the text and data coming from sql database. Now, I have problem of re-intialize controls after a button is clicked. The old data is still there and sometimes new data is added behind them. I used this code below. I am gonna try using Refresh. The caller [code] If contentType = 2 Then Me.disCtrl3.lblMessage.Text = title Me.disCtrl3.btnPTopic.Text = parentTopic Me.disCtrl3.ComputeTopicTextSize() If Me.CheckUserControlExist(disCtrl2) = True Then 'This is path when usercontrol already exist Me.disCtrl3.ReLoadContents(title) Else 'Usercontrol is added to panel of Main form Me.pnlMain.Controls.Add(Me.disCtrl3) End If Me.disCtrl3.Show() Else Me.disCtrl2.lblMessage.Text = title Me.disCtrl2.lblTitle01.Text = title + " Meeting Agenda" Me.disCtrl2.btnPTopic.Text = parentTopic Me.disCtrl2.ComputeTopicTextSize() If Me.CheckUserControlExist(disCtrl2) = True Then 'This is path when usercontrol already exist Me.disCtrl2.ReLoadContents(title) Else 'Usercontrol is added to panel of Main form Me.pnlMain.Controls.Add(Me.disCtrl2) End If 'Me.disCtrl2.Show() End If [\code] Being Called [code] Public Sub ReLoadContents(ByVal topic As String) 'Me.Controls.Clear() Me.pnlBalance.Controls.Clear() Me.pnlContent.Controls.Clear() Me.InitializeComponent() 'Only the controls that has not been removed is visble Me.ResetYAxis() Me.InitialBalanceDisplay(topic) Me.NextBalanceDisplay(topic) Me.LoadDistinctContent(topic) Me.btnPTopic.Visible = True Me.lblMessage.Visible = True 'Me.MakeLabelsVisible() End Sub [\code] Thanks den2005 -- MCP Year 2005, Philippines Tag: Tab Control Behaviour Tag: 96086
  - 20
    - ListView, Removing items. I'm having an issue with ListView control. THe list view contains items that are dynamically added and removed at run time. The problem comes when I try to remove an item. Whenever an item is removed, the ListView seems to automagically 'select' the item which sits in the same spot the recently removed item did. This only causes a problem when removing the last element in the Items collection, because there is no element to select, so it throws an index out of bounds exception. Anyone know how to stop it autoselecting an item after a removal? Cheers, Tim Tag: Tab Control Behaviour Tag: 96084
  - 21
    - Toolbar Image Distortion Hi I have an image that i want to use as a toolbar image. Its been created with a transparent background in Photoshop. I have tried saving it to both a png and a gif format and loading them into an image list and reference that for toolbar button images. In either case whenever i display it in the image is rendered with blue swiggles/distortions around it. I believe this is because of the transparancy as the image displays fine in a webpage. What is it about Windowsforms that renders my images so poorly? Any ideas? Thanks TM Tag: Tab Control Behaviour Tag: 96081
  - 22
    - Deleting the last row of a DataGridView - focus? Hi, I have set a dataGridView to full row select. When deleting a row, the next one will be selected (whole row is highlighted). But when deleting the last row, I would expect the previous non deleted one be selected (whole row instead of just having the focus to one unique cell). Is this by design? If so, then I'll try to adapt to it. Otherwise, I'll try some code to select the whole row. Thanks Tag: Tab Control Behaviour Tag: 96080
  - 23
    - 'Interop.SHDocVw' does not have a strong name I use web browser control(shdocvw.dll) in my winform application. When I put a strong name into the project and change the assembly, I got following error message. "Assembly generation failed -- Referenced assembly 'Interop.SHDocVw' does not have a strong name" and "Assembly generation failed -- Referenced assembly 'AxInterop.SHDocVw' does not have a strong name" I need to compile the application with proper version and strong name. Is there any way to work around this? Thanks in advance! Zheng Tag: Tab Control Behaviour Tag: 96079
  - 24
    - toolbox control to use for Outlook style nav bars? I would like to create an Outlook style navbar on the left of a splitter bar (like Outlook's Mail,Calendar,Contacts categories). How do I do that? Thank you, -hazz Tag: Tab Control Behaviour Tag: 96077
  - 25
    - ToolStripRenderer Hi, I am having this very weird problem.I have created a custom ToolStripButton and hosted it in the ToolStrip. After I change the apperance of the ToolStrip using Renderer,I can see the buttons,but i cannot view the separator.I dont know,but the separator do not show up.I can see all the other controls.But the separator never comes up. public class baseRenderer : System.Windows.Forms.ToolStripRenderer { protected override void OnRenderToolStripBackground(ToolStripRenderEventArgs e) { SolidBrush transparentBrush = new SolidBrush(Color.Transparent); e.Graphics.FillRectangle(transparentBrush, e.ToolStrip.ClientRectangle.X, e.ToolStrip.ClientRectangle.Y, e.ToolStrip.ClientRectangle.Width, e.ToolStrip.ClientRectangle.Height); base.OnRenderToolStripBackground(e); } } This is all that i do in the renderer Thanks in advance Tag: Tab Control Behaviour Tag: 96075
- Next
  - 1
    - Owner-drawn listview row height VS2005 Does anyone know of a simple method to allow you to change the row height of an owner-drawn listview control in .NET 2.0 (VS2005) ? Thanks in advance Steve Tag: Tab Control Behaviour Tag: 96073
  - 2
    - ClickOnce via Response.Redirect I can use a ClickOnce app I made fine, but I cannot seem to reliably access it via an asp.net app that redirects to it: I created a simple ClickOnce windows forms application in VS 2005 that deploys via IIS; that works fine when either type in the URL, for example "http://localhost/ClickOnceTest1//ClickOnceTest1.application", or hit the autogenerated publish.htm URL. Buuuut...if I then make a new, separate asp.net web application (using vs 2003, so .net 1.1), (let's say it's called ClickOnceWebApp1) and simply call Response.Redirect("http://localhost/ClickOnceTest1/ClickOnceTest1.application",true), it generally does not work - once in a while, it works fine! Most times, I get the "Cannot start application" dialog with a msg "..the application is improperly formatted..." If I then click on "details" I see some messages such as the following: Activation of http://localhost/ClickOnceWebApp1/WebForm1.aspx resulted in exception. Following failure messages were detected: + Exception reading manifest from http://localhost/ClickOnceTest1/publish.htm: the manifest may not be valid or the file could not be opened. + Parsing and DOM creation of the manifest resulted in error. Following parsing errors were noticed: -HRESULT: 0x8007001f Start line: 0 Start column: 0 Host file: + A device attached to the system is not functioning. (Exception from HRESULT: 0x8007001F) COMPONENT STORE TRANSACTION FAILURE SUMMARY No transaction error was detected. WARNINGS There were no warnings during this operation. OPERATION PROGRESS STATUS * [1/3/2006 5:47:31 PM] : Activation of http://localhost/ClickOnceWebApp1/WebForm1.aspx has started. {snip!} ---------------------------------------------------------------------------- I find it very odd that it works only sometimes works! I tried setting IE to check for newer versions of the page on every visit (instead of "automatically"), but that didn't help. Any ideas? I want to be able to execute arbitrary server-side logic in my asp.net app, and then, when needed, redirect the user to launch a smart client. Thanks! Tag: Tab Control Behaviour Tag: 96072
  - 3
    - Publish Application with Visual C# Express Edition Hi, i have a xml-file (name config.xml) and I use publishing my application with the C# Express Edition. But with every new version of my program the config.xml file on the client gets overwriten with the distributed file. How can I config it, so that the config.xml-file is only installed if its the first installation or it is missing? Thanks, Alex Tag: Tab Control Behaviour Tag: 96071
  - 4
    - MenuStrip merging I want to merge a MenuStrip with the MainMenuStrip of an MDI container form. I would like this newly merged menu to be the default menu in which MDI children will automatically merge their menus with when they are activated (which is the default documented behavior of MDI children). What is the best way to achieve this? I added an initial call to ToolStripManager.Merge() in the constructor of my MDI container form after InitializeComponents() to perform the first merge of the main menu strip. Whenever a child MDI form is activated, the aforementioned merge is automatically reverted back before the MDI child menu strip is automatically merged. Then, whenever the child is deactivated, the mainMenu reverts back to its initial state before any merges. It appears that you cannot compound multiple merges with a single menu. I believe that ToolStripManager.Merge() calls ToolStripManager.RevertMerge() before the requested merge is performed. Is there a way to persist the initial merge to where it will not be reverted whenever a child is activated? I thought perhaps I should clone a new menu from the initial merged menu and assign that as the MainMenuStrip of the MDI container before any child MDI containers are created and activated. But, cloning a menu strip does not appear to be a trivial task as windows forms do not implement IClonable. Tag: Tab Control Behaviour Tag: 96070
  - 5
    - WinForms Smart Client app unable to access contents of config file I have a simple WinForms app which uses values from the appSetting section of the config file. When the exe is invoked directly, thes values are retrieved as expected. When I try to launch the app vi Internet Explorer, however, it seems that the appSettings collection i empty. A reference in the for ConfigurationSettings.AppSettings["keyname"] returns null; a call t AppSettingsReader.GetValue() throws an exception ("The key 'keyname does not exist in the appSettings configuration section"). I have followed the advice given by Chris Sells and others: - I have enabled anonymous access to the directory containing the ex and config file. - I have added a web.config file to the same directory with an entr allowing *.exe.config files to be downloaded. With this in place, the config file is indeed downloaded: - If I request the config file directly in Internet Explorer, it i returned. (Visual Studio opens to display it.) - If I clear out the Assembly Download Cache and my Temporar Internet Files before attempting to run the application via Interne Explorer, I see the following in the IIS Log: 17:40:21 127.0.0.1 GET /ND_Client/ND_Client.exe 200 17:40:21 127.0.0.1 GET /ND_Client/ND_Client.exe.config 200 17:40:26 127.0.0.1 GET /ND_Client/ND_Client.exe.config 304 17:40:26 127.0.0.1 GET /ND_Client/ND_Client.exe 304 17:40:27 127.0.0.1 GET /ND_Client/en-GB/mscorlib.resources.DLL 404 [plus more requests for non-existent files] If I then look in my Temporary Internet Files directory, I can see bot the exe and the config file. However, if I look in the Assembly Downloa Cache, I see only one file, which the timestamp identifies as the exe (Should I expect to see the config file there? If not, where would th runtime find it?) It therefore seems that the problem is on the client side. What else d I need to do? I am running Windows XP Professional v 5.1 SP2 and .NET Framework 1.1.4322 SP1. "Server" and "client" are both the same machine -- Alan Millingto ----------------------------------------------------------------------- Alan Millington's Profile: http://www.hightechtalks.com/m60 View this thread: http://www.hightechtalks.com/t232165 Tag: Tab Control Behaviour Tag: 96069
  - 6
    - Can a SQL trigger raise an event in C#? Hello, I'm using VS2003 and SQL 2000. Is it possible for a SQL trigger to raise an event in my C# program? Thx. Andy Jacobs Tag: Tab Control Behaviour Tag: 96068
  - 7
    - ToolStripMenuItem.ImageTransparentColor throws exception Howdy folks, I am using VS2005 and have a ContextMenuStrip that I'm opening within a rich text box. I can add an image to each ToolStripMenuItem, but when I attempt to set the ImageTransparentColor property, I'm getting an exception. Here is the code that is causing the problem: menuItem = new ToolStripMenuItem(ContextMenuItemsText[(int)item]); menuItem.DisplayStyle = ToolStripItemDisplayStyle.ImageAndText; menuItem.Click += new System.EventHandler(menuItem_ContextMenu_Item_Click); menuItem.Image = new Bitmap(@"C:\temp\Copy.bmp"); menuItem.ImageScaling = ToolStripItemImageScaling.SizeToFit; menuItem.ImageTransparentColor = Color.FromArgb(254, 1, 254); When I run the code, the following exception is thrown: System.OutOfMemoryException: Out of memory. at System.Drawing.Graphics.CheckErrorStatus(Int32 status) at System.Drawing.Graphics.DrawImage(Image image, Rectangle destRect, Int32 srcX, Int32 srcY, Int32 srcWidth, Int32 srcHeight, GraphicsUnit srcUnit, ImageAttributes imageAttrs, DrawImageAbort callback, IntPtr callbackData) at System.Drawing.Bitmap.MakeTransparent(Color transparentColor) at System.Windows.Forms.ToolStripItem.set_Image(Image value) ... Does anybody know why this would be? What can I do to set the transparency color of the images in the context menu? Thanks, Dan Tag: Tab Control Behaviour Tag: 96067
  - 8
    - DataGridView.ReadOnly property modifies DataGridViewColumn.ReadOnl The MSDN documentation makes it sound like the ReadOnly properties of the DataGridView, the DataGridViewRow, and the DataGridViewColumn can be set indepently and that a: Quote: Cell is read-only if the value of the ReadOnly property is true for the cell, the cell's row, the cell's column, or the DataGridView. The problem I am facing is that if you toggle the ReadOnly property of the DataGridView it modifies the DataGridViewColumns ReadOnly properties. It really should not do this. The use case where this is annoying is if you have a set of columns that are always read-only but you need to temporarily disable all cells in the grid. In this case you set the ReadOnly property of the DataGridView to true and when the user can edit it again you set it back to false. Setting it back to false causes you to loose all the column ReadOnly properties. Is there a way around this? I really do not want to reapply the readonly properties to the columns all the time. Tag: Tab Control Behaviour Tag: 96064
  - 9
    - Datagrid error handling Hi all. When the update method of my data adaptor raises an exception it causes my bound datagrid to display an error icon next to the offending row with an appropriate error tooltip. This is exactly what I want. However, I also want to focus the cell/row causing the problem. How can I determine which row in the grid caused the error? The grid seems to know exactly which one it was as it displays the error icon on the correct row, but how can I determine this programmatically? TIA. John. Tag: Tab Control Behaviour Tag: 96063
  - 10
    - ClickOnce Memory Leak Hi, Has anyone noticed a memory leak when using the ClickOnce API calls. Each time I call the CheckForUpdates method, my application's memory increases my 300K. This memory is only released when the application stops I think that it's a bug within the System.Deployment.Application assemble Regards, James Tag: Tab Control Behaviour Tag: 96057
  - 11
    - Problem with PropertyGrid and DateTimePicker Hi I have a problem using a DateTime or Date value in the propertygrid in VS 2003 in a VB.net project. I have displayed an object in the PropertyGrid that has a DateTime value. When the property is clicked in the PropertyGrid the DateTimePicker is displayed with the correct value. However if the Year is clicked and the value is moved backwards in time using the UpDown control provided the display of dates for the month is incorrect. I have seen this behaviour in the VS IDE as well as in a form I have built. The DateTimePicker works correctly if it is embedded on a Windows Form. Does anybody know what is wrong or is aware of a getround. The problem is easy to reproduce: Start a new Windows application Create a basic class with a DateTime property apply an instance of the class to the propertygrid click the down arrow and go backwards in the years If have not tested this in c# Regards Paul Tag: Tab Control Behaviour Tag: 96054
  - 12
    - Problem in using word object hi all, In my windows application, i added a word object reference. Using word object, i'm doing spell checking. After spell checking, i quited the word object. But still its running in task manager and utilizing 100% in CPU. How to solve this?. I attached the code which i used in my application. string strVal = "Good"; Word.Application oWord = new Word.Application(); object missingType = Type.Missing; bool blnSpell = oWord.CheckSpelling(strVal, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType, ref missingType); if(blnSpell) label3.Text = "Correct"; else label3.Text = "InCorrect"; oWord.Quit(ref missingType,ref missingType,ref missingType); My ambition is to use spell check in my application. Is there is any other way to do this? Thanks in advance. Regards, Gomathi Tag: Tab Control Behaviour Tag: 96053
  - 13
    - aap domain and clr I want to understand this..if i have 6 diif applications(exe),running on c aomputer..will they all run in 6 diff app domainin one single process? is this the default behavior? Tag: Tab Control Behaviour Tag: 96051
  - 14
    - Installer in VS2005 Hi guys, i made an app using C# (vs2005) and i added some references to MS Excel in my project, when i try to install the app in a machine it begins but at some time it says "Cant find file My_App_Name.application" (that file exist at the directory when im publishing the installer), the closes itself, but i can execute my app because there are a shortcut in desktop, my problem is my app is not installing necesary dlls to work, and in my project properties -> publish ->Application Files it has in Download Group column Interop.Excel.dll, Interop.Microsoft.Office.Core.dll and Interop.VBIDE.dll as Required and in Publish Status column as Include(Auto) all them. but the specific report that uses excel doesn't works, it crashes, whats wrong in my publish configuration?? or how can i make an installer like VB6 style to include all dlls? Thanks all. Tag: Tab Control Behaviour Tag: 96039
  - 15
    - DataGridView changes column visibility If you create a DataGridView and add a hidden column to it (a column with its visible property set to false), the DataGridView will make the column visible anyway if you make changes to the data source. For an example of this behavior, crate a new windows form project and place a DataGridView control on the form. Add this one line of code to the form class: private DataTable dt; Put the following code in the Load event for the form: // primary key column DataGridViewTextBoxColumn column = new DataGridViewTextBoxColumn(); column.DataPropertyName = "primarykey"; column.HeaderText = "primarykey"; column.Visible = false; dataGridView1.Columns.Add(column); // value column column = new DataGridViewTextBoxColumn(); column.DataPropertyName = "value"; column.HeaderText = "value"; column.Visible = true; dataGridView1.Columns.Add(column); // create DataTable and set as the DataGridView's DataSource dt = new DataTable(); dt.Columns.Add(new DataColumn("primarykey",typeof(int))); dt.Columns.Add(new DataColumn("value", typeof(string))); dataGridView1.DataSource = dt; If you run the project, everything will look good. Now, put a button on the form and add the following code to its click event: dataGridView1.DataSource = null; dataGridView1.DataSource = dt; Now run the program. When you click on the button, suddenly the invisible column becomes visible. This doesnâ??t just happen when you change the datasource, but also happens if the data source is a DataView and you filter the records, etc. Has anyone else encountered this and does anyone know if there is a fix for it? Tag: Tab Control Behaviour Tag: 96037
  - 16
    - VS2005 and MainMenu controls I just noticed after switching to vs2005 that my MainMenu for my dialog has stopped showing up. If I click on it in the designer it is displayed correctly, but when I build my app, it's not there. I see in the property inspector for the dialog that there is a MainMenuStrip property, but not MainMenu. Do I need to manually recreate my menu as a new and improved(?) MainMenuStrip? Confused.... Tag: Tab Control Behaviour Tag: 96026
  - 17
    - DataGridView doesn't seem to honor the DataColumn.Caption Property The DataGridView doesn't show the datacolumn caption it seems to only show the name. Has anybody else seen this problem? Tag: Tab Control Behaviour Tag: 96024
  - 18
    - Mdi child size problem I am working with vs 2005 (vb). I have the mdi parent form with 2 group box that are docked one on then top the second on the right side. In free space that are 850x650 I want to show the mdi child form. Mdi children are inherits from base form that has toolstrip on the top and each of then add needs controls.Each of them are designed with base form size. I am loading them dynamicly, but suddenly application chage size for them Any idea? Regards oldkrot Tag: Tab Control Behaviour Tag: 96023
  - 19
    - RadioButton - GroupName I'm adding two sets of radio-buttons to a control (ie. each set of buttons should only have one selection). The problem is all the radio buttons within the form think they are part of the same group (only one button can be selected from all groups). With WebControls I would have used the "GroupName" property to setup the unique groups. But I can't find the corresponding property for the WinForms RadioButton. What should I do here. Thanks everyone! == Phil Tag: Tab Control Behaviour Tag: 96021
  - 20
    - Help : Application location Hi, How I can get my Application physical Location (I mean the the physical path of my applicaion) with in my applicaiton programaticaly . Development platform = VB.NET Kindly help me out thanks regards noorali Tag: Tab Control Behaviour Tag: 96015
  - 21
    - IP Address Text Box Hi, I m bulilding an application that take IP ADDRESS as input and that perform further functions on it . the ISSUE is I dont know how can I made a text box that will take only IP ADDRESS I mean how can I impliment form validation Plus that text box must take a formated text. how can I forced that IP format in that text box. Kindly help me. Example will be best if any ony one have. thanks in advance. regards Noor Tag: Tab Control Behaviour Tag: 96014
  - 22
    - Freeze of Form on MultiThread! Hello, In my application, my main form creates some sub forms which are shown on top of that main form and all of those forms do have a timer on them. When the timer elapses, they do raise an event which is catched by the main form... My problem in here is that when all that events get raised and all the shown sub forms have finished running their codes, my main form gets freezed... For thread safety, I use this code in the main form event subscription method but the result is still the same : Control c = sender as Control; if ( c != null ) { if ( c.InvokeRequired ) { c.Invoke(new EventHandler(this.MyEvent)); } else { //Thread is safe, run the code } } Can anybody help me what I'm missing in here? Thanks, Özden Tag: Tab Control Behaviour Tag: 96013
  - 23
    - Visual Inheritance classic, but gets mixed up Hi, I'm using the following visual inheritance classic: base form with two buttons 'apply' and 'cancel' anchored to the bottom right corner. You inherit this base form and resize the inherited form, the buttons move along. At least most of the time, sometimes the buttons do not anchor to the borders of the inherited form but appear at a random other location on the form. A workaround is to remove the code this.ClientSize = new System.Drawing.Size(529, 312); from the inherited form and resize it in the designer to its original specs. Does a solution exist, instead of this workaround ? Best regards, Nico Tag: Tab Control Behaviour Tag: 96011
  - 24
    - Upgrading DataGrid to DataGridView - CaptionText I am trying to upgrade some existing code to use the new DataGridView and the code makes use of the CaptionText property of the DataGrid control. What would be the equivalent in the DataGridView control? Tag: Tab Control Behaviour Tag: 96008
  - 25
    - Performance I downloaded an example of a Windows Form (.net 2.0) that mimics part of Outlook. It was nicely done. However, I was struck by the performance. It was not good. What about performance of Windows Forms that are somewhat complex? For the last few years I have done nothing but asp.net programming. The performance has been great. I made a brief launch into windows programming (.net 1.x) and found that the performance was not good -- e.g., the DataGrid or whatever it was called. This discouraged me from pursuing WinForms any further. Jay Tag: Tab Control Behaviour Tag: 96007

SelectedIndexChanged Event for Tab Control is not fired in .Net
Framework 2.0 but it gets fired in .Net Freamework 1.1 and this
behaviour happens till the form is not shown to the user. After
displaying the form this event starts working. Is this a known problem.

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