Windows forms and user controls

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Winforms
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
  - 1
    - Ideas on Themes selection for the Form??? I have two to different sets of themes for my windows form. Selecting each form should change the Images, color sets and other appearance related properties for the controls on the form. What could be the best way to approach this problem. I was thinking of saving these setting in different XML files and read from them on fly when theme is changed by the user. But any other ideas or suggestions would be very much appreciated. I was thinking something like this........ <root> <ImagesFolderName> images1 </ImagesFolderName> <LabelBackColor>Red</LabelBackColor> </PanelBorderColor>Dark Gray</PanelBorderColor> </root> Thanks, VPMahank Tag: Windows forms and user controls Tag: 96164
  - 2
    - Smart Client takes Ages to Start Hi I have created a windows form in Visual Studio 2005. I have use the publish function to create an Executable to install on Client Machines. Now, i have installed this on both the development machine, and my personal machine. Once installed, the version on my personal machine takes ages to open. Where the Version on my Development machine opens almost immeadietly. Why the Delay? Any help would be greatly appreciated Thanks! Tag: Windows forms and user controls Tag: 96161
  - 3
    - Hiding and Showing a modal form Hi , all In non .NET world(WIN API) i could have a hidden modal dialox box. But ShowDialog in .NET is dependent to Visible property !!! Suppose i have a Modal form and i make it hide(via this.Hide()) from another thread , someone tell me why after that my form is closed. I'm so angry of that , because a lot googling( MSFT staff hate this :)) ) i find for a simplpe thing such as hinding and showing a modal form you have to use some tricks . i don't i have to Cry or laugh My real problem is : i want update something on form(From another thared via Invoke) while is hidden and whenever i like i make that Visible or Invisible again . is it a BIG thing i can't() Some one help me and others. Tag: Windows forms and user controls Tag: 96157
  - 4
    - "Error while trying to run project. Unable to start debugger.", help help I press F5 to run simple windows form program, the error show "Error while trying to run project. Unable to start debugger.", how should I do? Tag: Windows forms and user controls Tag: 96155
  - 5
    - Smart Client failures When trying to run a smart cleint app it terminates with no error messages, event log entries, etc. I have tried running custom built apps and also the report builder in sql server 2005 with no luck. Has anyone else had this problem? Tag: Windows forms and user controls Tag: 96154
  - 6
    - Me.Invoke - Incorrect behavior I have encountered an odd behavior when using Me.Invoke and any help would be great. I am using a standard Me.InvokeRequired followed be a Me.Invoke to make sure a method runs on the UI thread. This logic has worked for me countless times but for some reason I have a problem with it in one circumstance. The Me.Invoke is called but it does not create the delegate on the UI thread. Instead it creates the delegate on the same thread which then gets caught by the Me.InvokeRequired which call Me.Invoke and this continues until I get a stack overflow. So my question is what would cause Me.Invoke to not use the UI thread but instead the thread that it is currently on? Below is a code snippet.... Private Delegate Sub SetButtonDelegate(ByVal Value As Boolean) Private Sub SetButton(ByVal Value As Boolean) If Me.InvokeRequired Then Dim newDelegate As New SetButtonDelegate(AddressOf SetButton) Me.Invoke(newDelegate, New Object() {Value}) Else Mylabel.Enabled = Value Mybutton.Enabled = Value End If End Sub Thanks Madison -- Madison Decker - MCSD Tag: Windows forms and user controls Tag: 96153
  - 7
    - Skinnable UI with WinForms Hello Everyone, I have a requirement of writing a WinForm application that should support "SKINS" for the UI. On applying a skin, the look and feel of the application can change drastically. Even the size and shape of the Main window and its child controls can change. I have NO idea about, how to achieve this in .NET WinForms. Any Article, Link, Sample or Lecture will be greatly appriciated with Tons of Thanks :-) Thanks * (Vipul) () ; =================================== Vipul Pathak, Indore, MP, India. Tag: Windows forms and user controls Tag: 96151
  - 8
    - Child forms Hi, When running this code, it's not possible to select the text using the mouse in the textbox. What's wrong with it? (This is just a code snippet. I can't use a MDI frame). Regards, Perry using System; using System.Drawing; using System.Windows.Forms; namespace WindowsTestApplication { public class MainClass { public class FormChild : Form { public FormChild() { TextBox tb = new TextBox(); tb.Location = new Point(5,25); tb.Width = 240; tb.Text = "Try to select a part of this text using the mouse"; this.Controls.Add(tb); } } public class FormMain : Form { public FormMain() { FormChild f = new FormChild(); f.Location = new Point(10,10); f.Size = new Size(250,150); f.TopLevel = false; this.Controls.Add(f); f.Show(); } } [STAThread] static void Main() { Application.Run(new FormMain()); } } } Tag: Windows forms and user controls Tag: 96146
  - 9
    - DataGridView Cell border Hello, Is there any way to set a different border only to some cells. I need to group some rows and I want to set the thicker bottom border for every last row in a group. Thank you Ondrej Srubar Tag: Windows forms and user controls Tag: 96145
  - 10
    - Reading a word document into a string Hi All, I need to be able to read a word document into a string, can someone post some sample code or point me in the right direction please. I've googled on this for ages and can't turn up anything useful. Many thanks, Tag: Windows forms and user controls Tag: 96139
  - 11
    - How can I get Area of checkbox ? Hellow , all How can I acquire the area where it is drawn to checkBox that changes externals by CheckState such as CheckBox and RadioButton? SystemInformation.MenuCheckSize ??? Thank you, Ken Tag: Windows forms and user controls Tag: 96135
  - 12
    - Closing the dropdown using Esc key results in closing of dialog Hi, I have dialog form whose Accept and Cancel buttons are set. Closing the Drop Down which is in a grid using Escape key results in Closure of the dialog. How to avoid this? Also, since the combo box has the focus, why this key event is bubbled to the dialog form. Regards, Manjunath -- Message posted via http://www.dotnetmonster.com Tag: Windows forms and user controls Tag: 96132
  - 13
    - Inserting Vaules into Multiple columns in a ListBox? Hi, How can I make a ListBox multicolumn and insert values into multiple columns of the listbox? I want to select the whole row as one...... Thanx in advance.... Regards, Sandeep Tag: Windows forms and user controls Tag: 96129
  - 14
    - Solution Explorer kind of utility Hi, wanted to know wat are the files used in current project along with folder structure. Please let me know how do I go about this. any help on DTE /ENVDTE will do. Kishor Tag: Windows forms and user controls Tag: 96128
  - 15
    - Tab Control Behaviour 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. Tag: Windows forms and user controls Tag: 96127
  - 16
    - 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: Windows forms and user controls Tag: 96126
  - 17
    - 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: Windows forms and user controls Tag: 96124
  - 18
    - 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: Windows forms and user controls Tag: 96122
  - 19
    - 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: Windows forms and user controls Tag: 96121
  - 20
    - 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: Windows forms and user controls Tag: 96118
  - 21
    - 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: Windows forms and user controls Tag: 96117
  - 22
    - 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: Windows forms and user controls Tag: 96116
  - 23
    - 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: Windows forms and user controls Tag: 96106
  - 24
    - 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: Windows forms and user controls Tag: 96105
  - 25
    - 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: Windows forms and user controls Tag: 96103
- Next
  - 1
    - 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: Windows forms and user controls Tag: 96102
  - 2
    - 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: Windows forms and user controls Tag: 96100
  - 3
    - 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: Windows forms and user controls Tag: 96099
  - 4
    - 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: Windows forms and user controls Tag: 96098
  - 5
    - 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: Windows forms and user controls Tag: 96096
  - 6
    - 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: Windows forms and user controls Tag: 96092
  - 7
    - 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: Windows forms and user controls Tag: 96091
  - 8
    - 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: Windows forms and user controls Tag: 96088
  - 9
    - 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: Windows forms and user controls Tag: 96086
  - 10
    - 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: Windows forms and user controls Tag: 96084
  - 11
    - 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: Windows forms and user controls Tag: 96081
  - 12
    - 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: Windows forms and user controls Tag: 96080
  - 13
    - '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: Windows forms and user controls Tag: 96079
  - 14
    - 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: Windows forms and user controls Tag: 96077
  - 15
    - 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: Windows forms and user controls Tag: 96075
  - 16
    - 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: Windows forms and user controls Tag: 96073
  - 17
    - 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: Windows forms and user controls Tag: 96072
  - 18
    - 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: Windows forms and user controls Tag: 96071
  - 19
    - 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: Windows forms and user controls Tag: 96070
  - 20
    - 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: Windows forms and user controls Tag: 96069
  - 21
    - 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: Windows forms and user controls Tag: 96068
  - 22
    - 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: Windows forms and user controls Tag: 96067
  - 23
    - 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: Windows forms and user controls Tag: 96064
  - 24
    - 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: Windows forms and user controls Tag: 96063
  - 25
    - 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: Windows forms and user controls Tag: 96057

Hello everyone,

I have a windows form that has 2 child usercontrols i created and added
inside, control1 has a label that displays some text based on
activities i do in control2, my question is how do i update the label
text inside control1 from control2? previously i got around this issue
by using properties and static variables but this doesn't work with
form controls such as the label i have.

Any solution would be highly appreciated.

Cheers,

Maya.

Top