BUG: Cannot Edit User Defined Type in Watch Window

• Microsoft Visual Basic Learning, Professional, and Enterprise Editions for Windows, version 6.0

SYMPTOMS

When you try to use the Watch window to modify values for User Defined types, you cannot modify the values.

RESOLUTION

Although a you cannot modify a User Defined type using the Watch window, you can modify it by using either of the following options:

• Immediate window



• Locals window



• Modify the variable through code during the execution of the application.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Behavior

Creating a Test ActiveX DLL

1. Start Microsoft Visual Basic and create an ActiveX DLL project. Class1 is created by default.



2. Add the following code to Class1:

   
         Public Type MyTest
            x as Integer
            y as Variant
         End Type 




3. From the Project menu, click Project1 Properties. On the General tab, enter MyServer in the Project Name box, and click OK.



4. From the File menu, click Make MyServer.dll.



5. From the File menu, click Save Project, if desired.

Using the Watch Window

1. From the File Menu, click Add Project, and then double-click on Standard EXE. Form1 is created by default.



2. From the Project menu, click References. In the Available References list, select MyServer and click OK.



3. Add the following code to the Load event of Form1:

   
      Private Sub Form_Load()
         Dim f as MyTest, v
         f.y = f
         v = f
         Stop
      End Sub 




4. Press F5 to run the application. Once the application enters debug mode, highlight the "v" in the line of code immediately above the Stop command.



5. From the Debug menu, click Add Watch, and then click OK.



6. In the Watch window, expand the expression "v".



7. Change the Value for "y" to 5. This change is allowed by the Watch window.



8. Attempt to modify the value of "v" to 5 in the Watch window. The change is not allowed.

REFERENCES

Microsoft Visual Basic, version 6.0 Books Online

Additional query words:

Keywords : kbcode kbDebug kbVBp600bug
Version : WINDOWS:6.0
Platform : WINDOWS
Issue type : kbbug