I have the following code... DataGridTableStyle ts = new DataGridTableStyle(); dgTest.TableStyles.Clear(); ts.MappingName = "Test"; DataGridTextBoxColumn col1 = new DataGridTextBoxColumn(); col1.MappingName = "something"; col1.HeaderText = "Something"; col1.ReadOnly = true; col1.NullTe...more >>

OK, Since no one can tell me if you can have the Help Button AND Min/Max in the control box (or why not) I'll just accept that you can't, and that I have to use a toolbar button. My question now is how can I get equivalent functionality from this toolbar button? Meaning I want my button...more >>

Hi I have looked everywhere and can't seem to find why all my child forms = of my mdiform shows behind my controls on the form? Dim frm As New frmMyFrm frm.MdiParent =3D Me frm.Show() Can anyone please help me. I want to place controls on my mdiform and = show child forms above ...more >>

Hi! If I want to create an app that captures requests for certain urls, like a skype catches callto:, how would i do that? For insance: I enter klaus://usenetrules in my browser, and my app starts (or is already running) and receives the "klaus://usenetrules" as some kind of argument. ...more >>

I would like to be able to detect updates on a server and update the client as described in the deployment model for smart clients. It remains crutial however that I can present this as an option to the user. I can see that .Net 2.0 has a "CheckForUpdate" feature, but I cannot find any for ...more >>

How would i make the TabPage's title editable? I know I could have like a text box to set it but i want the user to be able to edit it directly. Thanks in advance! ...more >>

ALL, I recently had to reinstall Visual Studio .NET 2003. This was because I got a new computer at my company, and in fact will need to reinstall a whole bunch of apps. In any case, when I try to load the "design" view of my one and only form (i.e. Form1.h[Design]) none of the controls are ...more >>

I have a string representing the name of the control. Is there a method that would take the string and return the pointer to the control or I need to search Controls collection manually? (I work with Windows Forms) Gregory Khrapunovich ...more >>

hi, i am trying to draw an alpha effect on top of the icon for a treenode. here is my code: node.ImageIndex = 9; ImageAttributes ia = new ImageAttributes(); ColorMatrix cm = new ColorMatrix(); cm.Matrix33 = 0.5F; //50% transparency ia.SetColorMatrix(cm); using(Graphics g = CreateGraphic...more >>

I am hoping someone can help me. Is there any way to get a form to act like a cross between a mdi child from and a dialog box? I need to be able to display the results of a users search from a main form into another "popup" form and still be able to interact with the main form. If I display...more >>

I am developing a c# application in Visual Studio 2003. I have to use a third party ocx on a form. If I open the form as a dialog everything works fine, but if i open the form as mdichild the application crashes with this error: Debug Assertion Failed! Program: c:\.....\myapp.exe File: afx...more >>

If I try to change the text displayed in the ComboBox(in 'DropDown' Style) from with in it's TextChanged event by setting the Text Property of the Combo, the changed text is not appearing in the Combo, but this happens only when the text is changed by selecting item by dropping it down, when t...more >>

Hi, I'm having an unusual printing problem in my .NET app which I think may be a permissions issue. If I log on to my network as an Administrator, my application will print without any problem at all. If I log in as a restricted user, I get an InvalidPrinterException stating that there ar...more >>

Hi, How can I keep the memory usage and CPU usageas low as possible in a VB.NET application? any special techniques, any things to consider? Thanks a lot in advance, Pieter ...more >>

I am deriving a class from TextBox to implement a NumericBox. I am overriding OnGotFocus and OnLostFocus methods but On GotFocus is causing problems. Actually the commented lines are causing problems. These throw Win32 exception that windows was unable to create handle. I dunno wats wrong. Plz h...more >>

Hello, I have an Windows application which is developed in VB.NET. Now I want to create an OCX to embed it in Excel 2000/XP. How can I do that? Regards, Rohit. ...more >>

Hi I am writing a small windows desktop application. Its a small configuration tool which writes data to text files. And i heard about application objects. Should i use UI application objects and Is it worth using it ? thanks in advance Matt ...more >>

Hi, I know this topic has been covered in various forms but I still can't seem to come up with a solution that works correctly. I want to create a modeless hidden form in my application. This is NOT the main application form. The best way so far is as follows. MyForm form = new MyForm(); ...more >>

I downloaded a complete DataGrid example, "IssueTracker", for accessing an Access DB with a DataGrid control. Sounded like a cakewalk. The first line of the .aspx file referenced the "Microsoft.Web.UI.WebControls" namespace. I got an error msg that the namespace could not be found. Any...more >>

Hi all, I have a deployed a No Touch Deployment (NTD) and the app works on some PC's but not others. All our PC's have a standard operating environment (Win XP). When I look in the Assembly Download Cache, I can't see all the required dll's files for the PC's that cant run the app. However ...more >>

I've added a string and a bitmap to Resources.resx and the designer creates static properties for these in the Resources class. if I call the following in my Mainform OnLoad:- string name = MyApp.Properties.Resources.ProductName; Bitmap splashImage = MyApp.Properties.Resources.Splash; ...more >>

I have difficulties trying to load a cursor from a resource file. Using VS 2003 -- opening a new vanilla C# windows form, adding a new vanilla cursor file -- setting Build Action to 'Embedded Resource'. In my code I use: this.Cursor = new Cursor(GetType(), "WindowsApplication1.Curso...more >>

Hi, I have a form with a couple rectangles drawn with gdi+. I'd like a tooltip to be displayed when the user hovers over the rectangles (with a different tooltip text for each one). I've attached a tooltip to the form, but my problem is that the text is only displayed once. To get the text to...more >>

I have a problem with one of my application (actually I suspect this problem happens with other programs, but this is the only program I am sure of ). I have a winforms application with a main window & a dialog box that I open from the main menu. Some times (quite rarely) when I open the dia...more >>

Hi all, I've seen there have been a number of posts about this issue but couldn't find anything useful in none of them. The "put it inside a panel" trick didn't work either. I've got a combobox inside a tab page and I'd like to refresh it's content upon opening of the tab page. 1) What's...more >>

Hi All, I generated a WebForm and created a Virtual Directory for it IIS. But I got an error message (shown below) saying something like my app lacked appropriate privileges. David Wang replied to an earlier question about this issue, and he informed me that I needed to include my UserI...more >>

Hi to All, I created a component with a IList type property. If I use it in design time, the property window shows the default editor for this property (the [...] button show the collection editor window). How can overwrite this default behavior, to let the property window to show a simp...more >>

Hi All, What is the use of DoEvents functions? ...more >>

I want to be able to drag files from Windows Explorer to a Windows form. It's easy to get the file name being dragged, but I'd like the user to see the same transparent file name icon that you see when dragging the file through windows explorer. Does anyone have any tips on this? I've looked ...more >>

I have a windowsforms application written in vb.net and I need to see if a specific third-party application is running and, if it is running, bring it to the front, that is, as if the user alt-tabbed to it or clicked it on the task bar. Any ideas? ...more >>

Hi, System creates a New constructor while creating a form. Is it adviced to use the same constructor to pass parameter values, and use it constructor after InitializeComponent. Example Public Sub New(ByVal dt As DataTable) MyBase.New() 'This call is required by the Windows F...more >>

Hi, Before showing a form I check in its constructor for a certain condition. If this condition is not met I want to close the form from within the costructor without even displaying it. I tried this: public MyForm() { if(CONTIDION_IS_FALSE) { CLose(); } } but the ...more >>

I am developing with VS 2003 -- .NET framework 1.1 I want my app to also run on .NET framework 1.0, so I define a .config file with the following: <configuration> <startup> <supportedRuntime version="v1.1.4322" /> <supportedRuntime version="v1.0.3705" /> </startup> </con...more >>

Hi, I'm wondering if there is any way to integrate Microsoft Words' Equation Editor into our windows forms app ? I would really appreciate if somebody could shed a light on this. Thanks in advance. ...more >>

Hi I have done quite a few .net web apps but not many window apps. I am working on one and have several listboxes that get populated in the form load from a stored procedure. This is working but I can not seem to resize the controls as when I try to set the height up in the properties box it...more >>

Hi All, [I posted this first in microsoft.public.dotnet.framework but then thought it is more appropriate in this newsgroup] In effort to write a loop in ASPX to generate a set of labels, I tried this: <form id="Form2" method="post" runat="server"> <script language="C#" runat...more >>

So I have a project with several DateTimePickers. Some of them have checkboxes and some don't but the ones with checkboxes always appear on the form in the checked condition. It makes no difference if I set the Checked property to false in the property window, or if I set it to false on the ...more >>

I have windows form application on clients computer communicating with Database which is in a remote location in same network. We see considerable performance degradation due to this setup. If the client access the databaser locally the performace is lot better. Does any one have any sugge...more >>

I am trying to add push buttons to my windows form, but I cannot find them. These are buttons that exhibit the same behavior as radiobuttons, where if a user clicks the pushbutton, it stays clicked and other buttons grouped with the pushed button become unclicked. I tried looking at the style...more >>

To be able to explain what's happening, I will use a short example: The example is created in VB.Net 1.1. I have a form with a combobox on it. The datasource is set to a global datatable object which is instanciated on a vb module. I instanciate the form, set the datasource, valuemember and dis...more >>

Hi folks, Can somebody help me to create a richtextbox with a synchronized scrolling using c#? I need to place to richtextboxes on windows form, upon scrolling on one richtextbox the other richtextbox should also scroll. Thanks, Jon ...more >>

hey guys - i've been reading alot of discussion on this. and up until today - this wasnt a problem for me. the problem that just came up is the "Could not access 'CDO.Message' object". i've had this program working just fine on two separate machines for about five weeks now, so, it's difficult f...more >>