BUG: The KeyUp event of the RichTextBox control is raised two times in Visual Studio .NET and in Visual Studio 2005 (820626)

MORE INFORMATION

Steps to Reproduce the Behavior

1. Create a new Microsoft Windows application by using Microsoft Visual Basic 2005, Microsoft Visual Basic .NET, or Microsoft Visual C# .NET.
2. On the Project menu, click Add Reference.
3. Click the COM tab, and then click to select Microsoft RichTextBox Control, version 6.0.
4. From the toolbox, drag the Microsoft RichTextBox Control, version 6.0 control to Form1.
   
   
   The AxRichTextBox1 control is created.
5. In Solution Explorer, right-click Form1, and then click View Code.
6. Add the following code in the variable declaration section for Form1:
   
   Visual Basic .NET or Visual Basic 2005 Code

         ' Declare the counter variable.
         Dim counter As Int32 = 0

   Visual C# .NET Code

         // Declare the counter variable.
         int counter=0;

7. Add the following code to the KeyUp event of the AxRichTextBox1 control:
   
   Visual Basic .NET or Visual Basic 2005 Code

         ' Increase the counter.
         counter += 1
         Console.WriteLine(counter.ToString())

   Visual C# .NET Code

         // Increase the counter.
         counter += 1;
         Console.WriteLine(counter.ToString());

8. On the Debug menu, click Start to run the application.
9. Press any key in the RichTextBox control.
   
   The counter value in the output window is 2.