Problems when handle Event in MDI

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- Previous
  - 1
    - Help with TreeView I am building a project, in which I utilze the TreeView. Here's the explain as what I want to do The Root TreeView Node is "Color", Below it I have "Red", "Green", "Yellow" as Child Nodes. Now when I click on "Red", I want a form with Red colored background to popup. The project is not quite this but, it's the same idea :-). Can you help me. Google, leads me to a lot of good articles but non help me out. Please advice Color |_Re |_Gree |_Yello Please advice and Thanks for your help in advance. Tag: Problems when handle Event in MDI Tag: 70429
  - 2
    - After Load Event? Hi all, I was looking for the equivalent of an "after load" event to fire when I load a windows form. I'm opening an additional form in the first form's load event, the problem is the form will open before the first form is displayed and thus display behind the first form. I can code around this, but is there obvious event that I am missing to have instructions processed after the first form is rendered? Thanks, Collin Tag: Problems when handle Event in MDI Tag: 70427
  - 3
    - ATTN Herfried Re How do pass arguments between forms in vb.net TIA any chance of some code TIA Hi, Any chance you showing the code Many Thanks Tag: Problems when handle Event in MDI Tag: 70423
  - 4
    - Disposing Child Forms Hi, I have an windows mdi application. I am creating a number of child windows. Later, at some time i need to free up these child forms. In the dispose method of the child forms, do I explicitly dispose the controls placed on the child form ?? What are the general rules. I went through MSDN but nowhere was it explicitly mentioned regarding windows forms. TIA. Tag: Problems when handle Event in MDI Tag: 70411
  - 5
    - Data Binding Bug I have started a new Windows form project, and added to the Form1 constructor the following: Form2 form2 = new Form2(); form2.Show(); Form2 is just a new form with a checkbox added to it. in the Form2 constructor I've added: this.checkBox1.DataBindings.Add("Checked", this, "TopMost"); So, I was expecting that the Form2 wasn't hidden by Form1 when the checkbox was checked, because i have bound Checkbox1.Checked property to Form2.TopMost property. However, this doesn't work? Why??? I'm completely lost :( If I change the databinding to: this.DataBindings.Add("TopMost", this.checkBox1, "Checked"); it works as expected, but i can't understand why. isn't databinding supossed to be conmutative? Please help me! Thanks, Pedro. Tag: Problems when handle Event in MDI Tag: 70404
  - 6
    - Add listViewItem into a FOR...........is possible? I would add item in a listview, but I don't know the name of item until I am in run-time and the following code isn't correct!!! Why 'InfoControlli '(0,j) - nome del controll '(1,j) - codice del controll '(2,j) - bloccante (vale True o False '(3,j) - defaultutente (vale True o False For I = 0 To N - 'Setto i click a seconda delle impostazioni del file controlli.xm listViewItem1.Text = InfoControlli(0, I) 'Nome del controllo (stringa If InfoControlli(2, I) = "True" Then 'Bloccant Me.ListView1.Items.Add(listViewItem1 End I Nex thank yo cos75 Tag: Problems when handle Event in MDI Tag: 70403
  - 7
    - Tutorials on building windows applications in .NET Hello all, I'm looking for tutorials for building windows applications in .NET I have experience with building ASP.NET applications in VB.NET Thanks in advance. -- DaWoE Tag: Problems when handle Event in MDI Tag: 70402
  - 8
    - New theme in .NET app Hi All, I want to create a new theme.....with my own choice of font, color etc....and then want to apply this theme to all the controls in VB.NET form. Do I need to write a manifest for this? How can I do that? And..... how do I read from the manifest? I already know how to include Win XPP themes in my app. TIA Tag: Problems when handle Event in MDI Tag: 70401
  - 9
    - Read only project in solution Hi All, Is there a way of adding a project into the solution as read-only? I have a project which is common across all the applications. I am writing a small application which makes use of this project. Instead of adding the project binary as a reference I would like to add the whole project into my solution, but I don't want myself editing this common project if I am doing something in the little application. Does anybody know if we can add a project as read-only in the solution or has anybody tried any other alternative in such situation ? TIA, --Saurabh Tag: Problems when handle Event in MDI Tag: 70400
  - 10
    - Datagrid, disable single cell selection Hi As newbie I am stuggeling with the datagrid. What I want is that if I select a cell the entire row is selected. This part I have figured out. However when I click on cell I get this selection, looking like the cell is editable, eventhough the grid is read only I tried with a override on the mousedown function but didn't succeed, probably bad code.... ;)) Can anyone tell me how to do this as I haven't found a property setting either to cancel this option Thanks DJ Tag: Problems when handle Event in MDI Tag: 70398
  - 11
    - using cycling 2 forms hi, I have a problem with using 2 forms.In FormA , there is a button which calls FormB & in FormB there is a button which calls FormA . Imagine , FormA has been loaded , user click a button to load FormB .So , FormB is showing on the FormA ,& FormA is under this form. Now User click a button on the formB to show FormA . Now i want at this time , FormA (which is under FormB) bring to front & FormB bring to back .I used the poperty "FormA.TopMost=True" ,but it doesn't work correctly & nothing changed . Regards Nasim Jafarian Tag: Problems when handle Event in MDI Tag: 70396
  - 12
    - Scrolling in ContextMenu Hey all, I've got a problem with a slightly bigger contextmenu. Let's say I have 100 MenuItems then the context menu gets a little arrow on the very top and the very bottom. The one at the very bottom is black to suppose it is selectable, the one at the very top is grey (not selectable). By clicking on the bottom arrow I would expect I would scroll down my list of MenuItems. Instead the list of items is closed (quite slowly, looks somewhat strange). Shouldn't this work for itself? Or do I have to catch some event; I didn't see yet? And no, I cannot structure my MenuItems in different parent items ;-) Thanks a lot in advance, Peter. Tag: Problems when handle Event in MDI Tag: 70395
  - 13
    - Restore minimized window Hi All, maybe it's too simple, but i haven't found a solution to it: I have a notify icon and a context menu attached, which has "Display main form" menu item. When I click it I want to show the main form, so i have: Me.BringToFront() however if the main form was minimized before that, the code doesn't work, it just sets the focus to the iconic rectangle in the taskbar without making the form visible to the user please help! thanks in advance, // levon Tag: Problems when handle Event in MDI Tag: 70393
  - 14
    - Problems designing properties added to inherited wrapped ActiveX I have an ActiveX control that has been imported with aximp. The aforementioned control "AxABC" is then subclassed as MyABCControl. The inheritance chain now goes like this: MyABCControl -> AxABC -> AxHost -> Control ... AxHost implements the ICustomTypeDescriptor interface, but does not let you override its behavior, and therein (I think) lies my problem. I have added a few properties to my subclassed control, but while they show up in the property grid in design mode, they show up as error values (dark gray rect instead of value) and if I debug devenv, I get the following stack trace and a NullReferenceException for each of my added browsable properties: system.windows.forms.dll!AxPropertyDescriptor.get_Converter() + 0x6 bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.PropertyDescriptorGridEntry.get_TypeConverter() + 0x1c bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.GridEntry.get_Flags() + 0x34 bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.GridEntry.get_ShouldRenderReadOnly() + 0x1e bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.PropertyDescriptorGridEntry.get_ShouldRenderReadOnly() + 0xc3 bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.GridEntry.PaintValue(System.Object val, System.Drawing.Graphics g, System.Drawing.Rectangle rect, System.Drawing.Rectangle clipRect, System.Windows.Forms.PropertyGridInternal.GridEntry.PaintValueFlags paintFlags) + 0x5f bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.PropertyGridView.DrawValue(System.Drawing.Graphics g, System.Drawing.Rectangle rect, System.Drawing.Rectangle clipRect, System.Windows.Forms.PropertyGridInternal.GridEntry gridEntry, System.Object value, bool drawSelected, bool checkShouldSerialize, bool fetchValue, bool paintInPlace) + 0x5d bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.PropertyGridView.DrawValueEntry(System.Drawing.Graphics g, System.Drawing.Rectangle rect, System.Drawing.Rectangle clipRect, System.Windows.Forms.PropertyGridInternal.GridEntry gridEntry, System.Object value, bool fetchValue) + 0x36 bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.PropertyGridView.DrawValueEntry(System.Drawing.Graphics g, int row, System.Drawing.Rectangle clipRect) + 0xf4 bytes system.windows.forms.dll!System.Windows.Forms.PropertyGridInternal.PropertyGridView.OnPaint(System.Windows.Forms.PaintEventArgs pe) + 0x376 bytes system.windows.forms.dll!System.Windows.Forms.Control.PaintWithErrorHandling(System.Windows.Forms.PaintEventArgs e, short layer, bool disposeEventArgs) + 0x66 bytes system.windows.forms.dll!System.Windows.Forms.Control.WmPaint(System.Windows.Forms.Message m) + 0x1f5 bytes Help anyone? /Per Tag: Problems when handle Event in MDI Tag: 70389
  - 15
    - undo toolbar control Has anyone out there seen code or even a control for sale for an undo toolbar button control like the one in dev studio or word with the drop down and the nifty stack-style selection capability? I'm in a time bind and don't have time to write one. Wish I did... WNC Tag: Problems when handle Event in MDI Tag: 70383
  - 16
    - How to control the property Form.WindowState? I have created a form (e.g. frmList) which is called by selecting an option from main menu. And, frmList.WindowState = Maximized. And, there is a command button (e.g. btnNew) in frmList which will call another form (e.g. frmDataEntry), frmDataEntry.WindowState = Normal When i select the menu option, the frmList is show in maximized size, it is correct. But, when I on the button (btnNew), the second form (frmDataEntry) is show in maximized size also, not in normal size. Why I need the first form (frmList) show in maximized size, but second form (frmDataEntry) show in normal size. Please help. Tag: Problems when handle Event in MDI Tag: 70377
  - 17
    - crystal report toobar buttons Hi all Is it possible to control the actions of buttons in tool bar of crystal report..? For an example when i give character value to search option in crystal report tool bar ... i got some int32(casting exception). So i want to control these things... is it possible.. regards Rajamanickam Tag: Problems when handle Event in MDI Tag: 70375
  - 18
    - simple OK + Cancel Box what is the easyest way to create an ok cancel dialog with VB 2002 TIA Tag: Problems when handle Event in MDI Tag: 70374
  - 19
    - MultiLevel Treeview node Hi All, I had saved all the menu name under SQL Database, total five column e.g Refer to the below sample.... (1st Column) The most left is the menu name (2nd Column) first digit is First Level Node (3rd Column) second digit is Second Level Node (4th Column) third digit is Thrid Level Node (5th Column) fourth digit in Fourth level node 1 = Fill 0 = Empty Main MenuI 1 0 0 0 --- ( since 1st Level is fill but 2nd level is empty, so on 1st Level) Sub MenuI 1 1 0 0 --- (1st level fill, 2nd fill, 3rd level empty, but on 2nd Level) Sub Sub 1 1 1 0 --- (1st level fill, 2nd fill, 3rd fill, 4th emptly, so on 3rd level) Sub MenuII 1 2 0 0 --- (1st level fill, 2nd fill, 3rd emplty, so on 2nd level, but 2nd level is "2", so add after "1") Main MenuII 2 0 0 0 --- (1st fill, 2nd empty, so on 1st level, but number is "2", so after "1" the Treeview arrangment is based on the four level of column code First Level would be only +MainMenuI +MainMenuII both level able to expand into the following -MainMenuI + Sub MenuI ------------------------------this menu able to expand into - Sub MenuI + Sub - Sub Sub -MainMenuII ------------------------------------------------ PROBLEM HERE: How could I programatically retrieve all the menu name from database and all into Treeview node with images avaibable. ------------------------------------------------------ Currently I am using SQL statement to query four level of tables, and bind all four tables into a dataset. then using if statement to compare the next available node to add. i found that is too bulky, and may slow down the speed and waste a lot of memonry. I hope there is another effiecient way to code it. Thank you very much Tag: Problems when handle Event in MDI Tag: 70370
  - 20
    - Why does Form-A's instance fire Form-B's event?? Hi, I have an MDI application. I'm opening 2 instances of the same form, Form-A and Form-B. WHen I have these two instances of same form open, it looks like all the events are shared between Form-A and Form-B. Eg., I have a button, which on click, changes the tab from Tab-1 to Tab-4. Since, in this case, both Form-A and Form-B have same buttons, the button click on Form-A changes Form-B's Tab-1 to Tab-4. Which should not happen. How can I avoid this? How is this handled in .NET? Shouldn't the events of Form-A be kept separate from Form-B's events? Any help is greatly appreciated. HyperX. Tag: Problems when handle Event in MDI Tag: 70369
  - 21
    - Unhandled Exception Anybody have an idea of what can cause this exception An unhandled exception of type 'System.Arithmetic.Exception occured in system.drawing.dll I have already restore my VB.NET but still I get this exception Thank Tag: Problems when handle Event in MDI Tag: 70367
  - 22
    - working with graphics I am creating an application that has some graphics and text displayed, and I am not sure the best approach is to handle my requirements. - There are 2 images that take up 40% of the form and are do not move or change. All the following items are displayed on top of these 2 images and are readonly. - There are 12 peices of text displayed at the same time in separate controls - Ideally, I just want to see the text and have the background transparent. The content of the text changes, but the position is static. - There are 24 status's that are displayed near the text information. The position of these status stay the same, but some are not displayed in certain circumstances. Ideally, I want each of the status to be a bar with the length equal to the value (ie. values of 1-36) - There is 1 dot that is displayed at any position over the images. Originally I tried this: - create 2 picturebox controls and display the images contained in a file - put 12 labels to hold the text and set the background color to transparent - put 24 lables to hold the 'status' items with a green background, and set the width equal to the value - didn't deal with the dot yet. My question(s) are: - considering performance and resources, is the picture box the right control for the static images? Or should I draw them using GDI+ (they are pretty simple images that I could create programaticly)? - The labels' transparent background picks up the color of the form, not the image. How can I make them pick up the color of the underlying image? - is the status lables the correct approach? - What control would be the best to use for the dot that moves around? Any help with answers or sites with resources I could research would be appreciated. Thanks in advance Derrick Tag: Problems when handle Event in MDI Tag: 70363
  - 23
    - Pass value from Sub Routine to a form Hello... I have an event (it is for a bar code reader) that can be invoked no matter which of my forms is active. In one case, I want to take the barcode data and place it in a text control on a form that has already been loaded. I cannot figure out a way to accomplish this..... If anyone knows or has some suggestions or links, please let me know Thanks - dw Tag: Problems when handle Event in MDI Tag: 70359
  - 24
    - How do pass arguments between forms in vb.net TIA Tag: Problems when handle Event in MDI Tag: 70357
  - 25
    - EXE icon in dotnet I'm writing a C# application and have a nice custom icon that appears in the main window and in a notify icon in the system tray. I would like the EXE to have the same icon rather than the default white box with blue border but I just can't figure out how. Has anyone done this in dotnet? </joel> Tag: Problems when handle Event in MDI Tag: 70355
- Next
  - 1
    - transparent controls issue have 2 layers of related graphics that I want to display. The bottom layer is relatively expensive to render and stays static. The top layer displays some user-orchestrated animation, directed via the mouse- similar to a drag-and-drop operation. I've tried laying one control over the other. The top control is transparent. When I call Invalidate() in the TopControl, BottomControl repaints also. Basically, I'm hoping there is a way to continually update the top layer without having to redraw the bottom layer. Any suggestions would be appreciated. public class TopControl : UserControl TopControl() { SetStyle(ControlStyles.SupportsTranparentBackColor,true); BackColor = Color.Transparent; } protected override void OnPaint(PaintEventArgs e) { Console.WriteLine("top paint"); // some drawing code } protected override void OnMouseUp(MouseEventArgs e) { // collect some rendering data... Invalidate(); } } public class BottomControl : UserControl { BottomControl() { } protected override OnPaint(PaintEventArgs e) { Console.WriteLine("bottom paint"); // expensive drawing code } } Main() { ... Form f = new Form(); f.ResizeRedraw = true; BottomControl bc = new BottomControl(); bc.Dock = DockStyle.Fill; bc.Parent = this; TopControl tc = new TopControl(); tc.Dock = DockStyle.Fill; tc.Parent = bc; f.Show(); ... } Tag: Problems when handle Event in MDI Tag: 70348
  - 2
    - Multiple Hyperlinks I am trying to create a form with a panel that will hold multiple linklables These linklables will be added interactively by the user. I am using the following command to add a link DocLink = new LinkLabel() My problem is when a user wants to open a document clicking on a hyperlink I dont know wha parameter and how to send to DocLink_LinkClicked to execute that link Please help. Tag: Problems when handle Event in MDI Tag: 70338
  - 3
    - Autoscale Problem Hi I have a MDI application written in 96dpi font (normal font size from control panel) when running at 120dpi forms get much larger that's right since Autoscale=TRUE !!! BUT How can I know the "REAL" size of my form at run time ??? in the constructor size is the one I defined at Design-Time NOT the real size. I tried using AutoscaleBaseSize() e GetAutoScaleSize() but GetAutoScaleSize() needs as parameter the new font I don't change font the user just sets Windows with large font (120dpi) any help ??? many thanks. Carlo --------- Tag: Problems when handle Event in MDI Tag: 70335
  - 4
    - How to serialize application config settings The following msdn article - http://msdn.microsoft.com/library/?url=/library/en-us/dndotnet/html/persistappsettnet.asp?frame=true describes how to (de)serialize custom application settings using the XmlSerializer class (in VB.Net). This would be v. useful but the arcticle includes references to an 'ApplicationSettings' class which I can't find in v1.1 of the framework. I would be grateful for the work around for this if anyone knows it Thanks Tag: Problems when handle Event in MDI Tag: 70333
  - 5
    - Autoscale Problem Hi I have a MDI application written in 96dpi font (normal font size from control panel) when running at 120dpi forms get much larger that's right since Autoscale=TRUE !!! BUT How can I know the "REAL" size of my form at run time ??? in the constructor size is the one I defined at Design-Time NOT the real size. I tried using AutoscaleBaseSize() e GetAutoScaleSize() but GetAutoScaleSize() needs as parameter the new font I don't change font the user just sets Windows with large font (120dpi) any help ??? many thanks. Carlo --------- Tag: Problems when handle Event in MDI Tag: 70331
  - 6
    - Re: PropertyGrid problem Hello This problem is similar to the one I read in microsoft discussion forum by Brian Young.I am also trying to attempt similar functionality as his, the only difference is that I am calling a method of usercontrol to set it's height and width properties as of browser's height and width property.Below is my code and u'll have better idea <body><script language="javascript" function resizeWindow( w = document.body.clientWidth h = document.body.clientHeight document.objUserControl1.UserControlResize(w,h) </script><OBJECT id="objUserControl1" classid="client/bin/ManageNavigation.dll#ManageNavigation.UserControl1" VIEWASTEXT></OBJECT></body //UserControl1.c public void UserControlResize(int w, int h this.Size = new System.Drawing.Size(w, h) The above code works fine for all the other controls I add to usercontrol.But as soon as I add PropertyGrid control and set it's Dock property to Fill and run the application, it fails at 'document.objUserControl1.UserControlResize(w,h);' this line. If anybody knows the problem then please let me know Thanking you in anticipation Tag: Problems when handle Event in MDI Tag: 70324
  - 7
    - Application.Run throws a strange exception - HELP Anybody have an idea of what can cause this exception? The application works fine on hundreds of computers exept one running Windows XP Pro (French form = new Form1() Application.Run(form) Applicataion.Run throws this exception Message: Une exception a Ã©tÃ© levÃ©e par l'initialiseur de type pour "System.Drawing.SafeNativeMethods" StackTrace: at System.Drawing.SafeNativeMethods.CreateIconFromResourceEx(Byte* pbIconBits, Int32 cbIconBits, Boolean fIcon, Int32 dwVersion, Int32 csDesired, Int32 cyDesired, Int32 flags at System.Drawing.Icon.Initialize(Int32 width, Int32 height at System.Drawing.Icon..ctor(Type type, String resource at System.Windows.Forms.Form.get_DefaultIcon( at System.Windows.Forms.Form.get_Icon( at System.Windows.Forms.Form.UpdateWindowIcon(Boolean redrawFrame at System.Windows.Forms.Form.CreateHandle( at System.Windows.Forms.Control.get_Handle( at System.Windows.Forms.Control.SetVisibleCore(Boolean value at System.Windows.Forms.Form.SetVisibleCore(Boolean value at System.Windows.Forms.Control.set_Visible(Boolean value at System.Windows.Forms.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context at System.Windows.Forms.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context at System.Windows.Forms.Application.Run(Form mainForm at WinSimple.Form1.Main( Tag: Problems when handle Event in MDI Tag: 70313
  - 8
    - Doing The Impossible Hello, I have been given a programming task that falls into the "impossible" category with my current skill set. I am hoping somebody out there knows how to do this and can save my b-t. I work for a large University. I wrote a Windows-based database application for my department that is used in purchasing. The University has just released Web-base application that does the same thing using a sub set of the data that my application uses. The people in my department hate it and want to keep using my application, however, the University application MUST BE USED to order. What my users have asked for is a way of doing a mass copy and paste of the needed information from my Windows app to the Web app. I have talked to the University's programmers and there is absolutely no chance of them changing their application to facilitate this. It all has to be done from the Windows app. Obviously information could be cut and pasted a field at a time, but they would like a massive copy and then go to the web form and paste, paste, paste. Is there a way to do this from the clip board? From a text file? Can I assign a hot-key programmatically to paste things off the clipboard or text file? Any help is greatly appreciated. Tag: Problems when handle Event in MDI Tag: 70310
  - 9
    - Problems with OnLoad routine I have a form called ConfigUtility. That form has a TabControl. Each TabControl's tabpage is a CustomTabPage (derived from TabPage with a little common code). There is a panel on each CustomTabPage. The panel varies by page, but each one is derived from BasePanel (which is derived from Panel with common code.) In the BasePanel code I have the following public String StatusInfoText { set { ((ConfigUtility)ParentForm).StatusInfoText = value; } } My OnLoad in the derived panel calls this code StatusInfoText = "Enumerating ...."; This code works just fine at program runtime, but it fails a design time with a Illegal cast exception. Can someone explain why and what possible workarounds I might have? Thanks ------------------------------------------- Roy Chastain KMSystems, Inc. Tag: Problems when handle Event in MDI Tag: 70307
  - 10
    - Dim Form as New frmMain Problem !!!! Hi All, this is normally the way I declare the form and show the new form Dim Form as New frmMain Form.show then the frmMain will show up. I got a problem here. i need to pull on all the form name from database...like frmMain, frmNew, frmHelp....and a lot... so I dun have a static form name to open. I can hard code in my program, but that is not flexible enough, because i might change the form name later. so my code would be like Dim Form as New ??? Form.show Could someone guide me what should I put under ??? Thank you Tag: Problems when handle Event in MDI Tag: 70296
  - 11
    - datagrid headers Can anybody help with how to programmatically modify the existing datagrid column header text using windows.forms. Tag: Problems when handle Event in MDI Tag: 70292
  - 12
    - IS Dot net appropriate for Windows application Is using dot net correct for building windows database application. Can anyone point to some articles which highlight this issue as i have noticed that strees is always laid over dot net to be used as web based applications. Any demo app or articles is there please let me know. Vikram Tag: Problems when handle Event in MDI Tag: 70288
  - 13
    - datagrid - key handling how to make pressing enter in a winforms datagrid cell work as if the user pressed tab TIA Tag: Problems when handle Event in MDI Tag: 70283
  - 14
    - Pbr: access a desktop application from my WinForm application Hi, I am trying to access a desktop application from my WinForm application. I am accessing the UI controls of the desktop application from my application, for this, I am getting the instance of that application Process, through that, getting the main application handle. Using that application handle I can navigate to any of the controls in that application, since all other controls are child control, only thing that I need to know is the relative path from the main application (ie, its either GW_CHILD or GW_HWNDNEXT, this we can get using the Spy++ tool of Visual Studio). Now the problem I got struck in is that I would like to navigate within the Tab control. I would like to select tab page from a tab (of SysTabControl32 type), get its form/window/dialog control to focus, play around with its controls, select some other tab page, so the same Now, when I SendMessageA( handleToTabControl,TCM_SETCURSEL, TAB_PAGE_INDEX, null), its just setting/showing the corresponding tab (button at the top) as if selected (by bring to front, relative to other pages) , but the tab/window controls corresponding to the selected tab page are not being shown. Am I sending wrong message or not doing enough stuff. Can any body please help me out and give some clue Thanks in advance Burhan Tag: Problems when handle Event in MDI Tag: 70282
  - 15
    - Overridable or NotOverridable (System.Collections.Collectionbase.Clear) My code is simpl Public Class Class Inherits CollectionBas Private _lock As New System.Threading.ReaderWriterLoc Public Overrides Sub Clear( _lock.AcquireWriterLock(-1 MyBase.Clear( 'Add my own code _lock.ReleaseWriterLock( End Su End Clas When I compiled it, I got this error"Public Overrides Sub Clear()' cannot override 'Public Overridable NotOverridable Sub Clear()' because it is declared 'NotOverridable I used the Object Browser to check the definition of 'Clear' and got following description Public Overridable NotOverridable Sub Clear( Member of: System.Collections.CollectionBas But in MSDN, I got thi [Visual Basic Public Overridable Sub Clear() Implements IList.Clea I have updated my .NET to SP2 but this still occured. I can use C# to write my class but I wonder is this a BUG of VB .NET Tag: Problems when handle Event in MDI Tag: 70277
  - 16
    - Adding an existing project error Hi, I have two VS .Net 2003 projects that compile and execute correctly on their own. I would like the second project to launch from within the first project. Therefore, I added the second project to the first, via "add project/existing", and added a button (and code) to launch the second project (from the first). I receive the error: "The type or namespace name could not be found (are you missing a using directive or an assembly reference?)" and do not understand this error. I am assuming that the second project contents have to be made known to the first project, but I am unsure how to do this. This is in C#. Thanks. Tag: Problems when handle Event in MDI Tag: 70269
  - 17
    - Regular Expressions I'm new to regular expressions and I'm having some trouble with the following. I'm trying to match the start and end tags of a particular HTML tag set and all the text inbetween. something like this.... yadda yadda yadda ... <listitem>1. Some data that I want</listitem> yadda yadda yadda... I want the <listitem>1. Some data that I want</listitem> Anyone have a code snippet for me? Thanks, Collin Tag: Problems when handle Event in MDI Tag: 70268
  - 18
    - catching a itemchecked type event on a checkedlistbox Is there any way to catch an event that is fired when an item is checked or unchecked on a checkedListBox:? I'm looking for something similar to CheckStateChanged on a CheckBox. I'm not seeing anything to indicate there is the event is similar present for a CheckedListBox here : http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwindowsformscheckedlistboxmemberstopic.asp thanks! Nic Tag: Problems when handle Event in MDI Tag: 70266
  - 19
    - creating transperent usercontrol Hi... I am trying to create usercontrol with transperent background color.. I can't do it.. it becomes black background on webforms and it is not transperent.. i should be able to view the control behind that contro.. or background of the container which contains that control.. I need some sample, if you have one.. Regards Samir Tag: Problems when handle Event in MDI Tag: 70265
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    - ListView Bug When Localizable Set Hello, I'm using Visual Studio 2003 and .NET Framework 1.1 to write a C# GUI. I set the Localizable property of a form to True. Thereafter, I started getting a problem with a ListView control on the form. The first time the form is displayed with a ShowDialog() call, the small image icons do not appear next to the ListView items (it's in Details view). If I close the dialog and open with ShowDialog() again, suddently the small image icons appear as they are supposed to. Has anyone seen this problem? Is there a workaround (aside from turning off "Localizable")? Thanks, -- Joseph Morales (If you want to reply to me personally, then first remove "deletethispart" from my return address.) Tag: Problems when handle Event in MDI Tag: 70263
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    - First Chance Exception What is a "first chance exception"? It's in a WinForm, as follows: Private Sub DoFind() 'Instantiate the .Net remoting client class (Accounts) and call the Find method 'note that _findResult is an ArrayList-derived collection of Account objects If Not ToSearch = Globals.Find.Unset Then Try Dim server As New Accounts _findResults = server.FindAccount(Parameter.Text, ToSearch, ActiveOnly.Checked, UserCredentials) DisplayResults() Catch ex As Exception HandleException(ex) Exit Sub End Try End If End Sub Private Sub DisplayResults() 'bind _findResults to the ResultsList DataList If _findResults.Count > 0 Then ResultsList.DisplayMember = "AccountSummary" ResultsList.ValueMember = "Srn" ResultsList.DataSource = _findResults Expand() Else Shrink() MsgBox("No matches. Please check and try again.", MsgBoxStyle.Information + MsgBoxStyle.OKOnly, "Dreamballs") End If End Sub I get the message: "A first chance exception of type 'System.ArgumentException' occurred in system.windows.forms.dll Additional information: Cannot modify the Items collection when the DataSource property is set." Needless to say, given that the DataSource property isn't set, I don't know why it thinks something is modifying the Items collection. It doesn't cause a failure in the app (although the output is unexpected), but devenv brings up the message anyway. Any ideas? David Tag: Problems when handle Event in MDI Tag: 70261
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    - The better mousetrap with a built-in trap If one wants to assure that there is only one instance of an app running, then the popular solution is to use a Mutex and a message box, telling the user there is already one running. I decided to go one further, bring the 1st instance to the foreground, no message boxes. Impressive, I thought. So the first instance stores the main window handle in shared memory (win32 calls), second instance gets the window handle from shared memory if it exists, and do a win32 "SetForegroundWindow" call. It works great if the window is not minimized. Next step, when minimized, do a win32 "ShowWindow" call. Also works great, BUT this is the trap in my mousetrap. If the main form opened a dialog (ShowDialog), and the user minimizes the dialog, then of course the main form minimizes too. Now start the second instance, it finds the handle in shared memory and does a "ShowWindow" call, showing the main window beautifully, however, the modal dialog stays minimized. Naturally, the main form is dead, and the user has to click the dialog's icon in the task bar to bring it up. I don't really expect a solution, I thought I'd share my experience, and revert back to the mutex and the message box. Tag: Problems when handle Event in MDI Tag: 70254
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    - Are records in a dataset lost when switching forms? My dataset1.xsd contains several elements. One of my elements "reqs" contains records of data which are filled via form1. When I call form2 from form1, dataset1.reqs is empty. I thought that since the dataset1.reqs is in memory, I could see element and their records in any forms I called outside this form1. Is there a way to be be able to display records in another form? Thanks, Nancy. Tag: Problems when handle Event in MDI Tag: 70252
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    - Print Form Properly? I am attempting to do a "print screen" on a WinForm. The "now printing" dialog box is showing in the print-out, which is not what I want - I only want the screen dump of the WinForm itself. I used the code from the Windows FAQ (http://www.syncfusion.com/faq/winforms/search/491.asp). How can I get a graphic dump of my form without the "Now Printing" dialog box showing? Thanks. PrintDocument declaration: private System.Drawing.Printing.PrintDocument screenPrint; Button click code: { .... PrintDialog printDialog = new PrintDialog(); printDialog.Document = this.screenPrint; DialogResult dialogResult = printDialog.ShowDialog(); if ( dialogResult == DialogResult.OK ) { System.Threading.Thread.Sleep( 2000 ); this.screenPrint.Print(); } .... } BitBlt setup code: [System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")] private static extern bool BitBlt( IntPtr hdcDest, // handle to destination DC int nXDest, // x-coord of destination upper-left corner int nYDest, // y-coord of destination upper-left corner int nWidth, // width of destination rectangle int nHeight, // height of destination rectangle IntPtr hdcSrc, // handle to source DC int nXSrc, // x-coordinate of source upper-left corner int nYSrc, // y-coordinate of source upper-left corner System.Int32 dwRop // raster operation code ); Print support event code: private void screenPrint_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) { Graphics graphic = this.CreateGraphics(); Size s = this.Size; Image memImage = new Bitmap(s.Width, s.Height, graphic); Graphics memGraphic = Graphics.FromImage(memImage); IntPtr dc1 = graphic.GetHdc(); IntPtr dc2 = memGraphic.GetHdc(); BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376); graphic.ReleaseHdc(dc1); memGraphic.ReleaseHdc(dc2); e.Graphics.DrawImage(memImage,0,0); } Tag: Problems when handle Event in MDI Tag: 70249
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    - XUnit for WinForms = NUnitForms, anybody tried it? http://sourceforge.net/projects/nunitforms Sounds promising :-) Any shared experiences highly appreciated! Regards, // Martin R-L Tag: Problems when handle Event in MDI Tag: 70248

I Created a MDI Application, When I open two child Froms: Form 1 & Form 2, to process Sales Order or others
The following Things always happen
I input SO Number and Press Enter in Form 1, it works fine, the form will show all Sales Order Information
I switch to Form 2 to do some other things,Then switch back to Form 1 , and Input SO Number , Press Enter key
But at this time, I can not catch the event for KeyDown

is it a bug for Windows MDI Application

thx

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