PRB: Disabled Items in List Box Become Enabled

ID: Q177157

The information in this article applies to:

Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a, 6.0

SYMPTOMS

Items disabled in a list box become enabled when the list box receives focus and the RowSourceType property of the list box is set to anything other than 5-Array.

CAUSE

This is caused by the refreshing of the list box values from the data source.

RESOLUTION

Set RowSourceType for the list box to 5-Array.

STATUS

This behavior is by design.

MORE INFORMATION

Steps to Reproduce Behavior

1. Create a form.

2. Add a table to the DataEnvironment of the form.

3. Add a list box object to the form.

4. In the Click method of the list box, type the following code to disable

   an item that is clicked on:

      This.List(This.ListItemId)="\"

5. Set the following properties of the list box:

      RowSource = <Tablename>
      RowSourceType = 2 - Alias

6. Add a command button to the form.

7. Save and run the form.

8. Click on several items in the list box to disable them.

9. Click the command button created in Step 6.

10. Click or Tab into the list box to set focus to the list box.

NOTE: As soon as the focus returns to the list box all the disabled items are enabled.

REFERENCES

For more information on this, please see the following article in the Microsoft Knowledge Base:

   ARTICLE-ID: Q129329
   TITLE     : How to Populate a Form's ListBox Object from an Array

Keywords          : kbVFp kbVFp500 kbVFp500a kbVFp600 FxprgClassoop 
Version           : WINDOWS:5.0,5.0a,6.0
Platform          : WINDOWS
Issue type        : kbprb

Last Reviewed: October 31, 1998