I cannot get my C# program to access a DLL program written in COBOL. I use the following code to represent the program: [DllImport("readmf.dll")] public static extern void CYREAD(string linkfile, linkdata ld); I use the following statement CYREAD(linkfile, ld) a...more >>

My application is going to do some file copies, searching, etc. During this time I would like to throw up a small progress window showing the progress of the operation - but what I would also like to do is to show some of the animated GIFs that occur when Windows does a file operation. I.E. Wh...more >>

I have a dataset with two data tables. I created a data relation object to join the two tables by a common field. I set up the data binding to a combo box for the first table. This is the "parent". I set up the data binding for the datagrid for the second table. This is the child. When I run ...more >>

Hi, I am having problem on using Keyboard to copy and paste text in a RichTextbox. Nothing is happening when I press Ctrl + C. Right click on the mouse is also no action. I try to see the setting from the RichTextbox properties. I cannot find any related setting. Is anyone k...more >>

Hi, Is it possible to make a tab control adapt to the size of the control on the tab pages? I am sure I can do it with code but I am wondering if there is a built-in capability. I can't find an AutoSize property. Thanks Hans...more >>

Hello, I'm developing winforms using C# .net 2005. I'm currently a part of UI infrastructure team. I'm not a newb in this area, i want to expand my knwoladge in the field. I wanted to ask where can i find best practices, code examples, ebooks, preffered architacture and others for develo...more >>

Hello, I created a form (form1) with an tabcontrol on it. This tabcontrol is 'protected'. Now I create a new form (form2) and Inherit from form1. Now I can modify the tabcontrol because of it is protected. But now I get some problems. When I add some tabpages to the control and then compil...more >>

Hi All, i want to create an application, that gets all Hardware & Softwares Installed on windows based system. Thanks SS...more >>

How do you spawn a batch process from a C# program in a Windows form? I used to do this in C++ with a spawn command but I can't find the equivalent instruction in C#. Can anyone tell me how to execute an external program from a Windows form program by submitting a command line instruction?...more >>

I want my program to add a unique key to each item added to a table in addition to the PK. What is the best way for me to track the last key generated. The key will be a special string so I cant just increment it. ...more >>

I am using a LinkLabel control to capture "click" events from the user. This works fine for the text portion of the label, but I would really like to extend this to capture the event from the image portion too. I've tried various ideas without much luck. Does anyone have any suggestions? Stuar...more >>

How can I make mouse symbol disappear completely? I am using Windows Forms, C#, Framework 2.0 Gregory Khrapunovich ...more >>

Hi folks, Consider the following code: MyClass c = new MyClass(); c.MyEvent += new MyEventHandler(MyHandler); where MyClass is defined as follows: public class MyClass { public delegate void MyEventHandler(object sender, EventArgs e); public event MyEventHandler MyEvent = null;...more >>

After generating a report in ReportViewer, clicking the Print button once and trying to print doesn't work. You have to try to print twice for the report to be printed. Any suggestions about this behavior? Thanks....more >>

I am working on a solution which has a number of forms. At some point, mostly during builds, I get an error message box displaying the following line of text: Array rank '2' is too high. A search of the on-line doc reveals the following explanation: "Visual Studio only supports single-...more >>

I am using Visual Studio 2005 to develop a Windows Application using Visual Basic. I have added a MaskedTextBox to one of my forms and am trying to check it for changes. There is a property called MaskedTextBox.Modified that is suppose to return 'True' if the controls contents have been mod...more >>

I have a dataset with two data tables. I created a data relation object to join the two tables by a common field. I set up the data binding to a combo box for the first table. This is the "parent". I set up the data binding for the datagrid for the second table. This is the child. When I ru...more >>

I have a specific need to implement a singleton typed dataset and still use drag and drop binding via project data source. Specifically, I have a dll assembly that contains the typed dataset. When I reference it in my WinForms app, I want all forms and user-controls referencing the dataset ty...more >>

Lousy help in msdn. What would cause a "Invalid export options." exception in a windows forms app using ExportFormatType.HTML40? report.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.HTML40, "rpt1.htm"); Details: CrystalDecisions.CrystalReports.Engine.InvalidArgumentEx...more >>

I'm a C# newb and am trying to write a multithreaded app to free up my UI thread so that it can repaint the screen etc. The application does spawn another thread (I've verified this with Performance Monitor and by naming the different threads I am working with), which spawns another thread that...more >>

I'm a C# newb and am trying to write a multithreaded app to free up my UI thread so that it can repaint the screen etc. The application does spawn another thread (I've verified this with Performance Monitor and by naming the different threads I am working with), which spawns another thread whic...more >>

Hi, I have decided the best way to prevent characters from data entry is to use numericupdown control. The only problem is I need way to hide the updown control....wish there was a property for this. Anyone now easy way to get rid of updown arrows. Thanks Jared ...more >>