PRB: Double-Clicking a Check Box Does Not Change Its Value

ID: Q146021

3.00 3.00b WINDOWS kbprg kbprb

The information in this article applies to:

Microsoft Visual FoxPro for Windows, versions 3.0 and 3.0b

SYMPTOMS

When you double-click a check box, its value changes once. For example, if a check box is unchecked, double-clicking it marks it as checked. A double- click does not behave differently from a click. It was expected that double- clicking a check box would change the value twice, resulting in no change at all.

CAUSE

When you double-click the check box, the Click event is triggered after the first click. This is what changes the value of the check box. The DblClick is then triggered. Visual FoxPro does not modify the value of a check box when the DblClick event is triggered.

WORKAROUND

To change the value of a check box with a double-click, you can insert either of the following commands in the DblClick event handler:

   KEYBOARD " "

   -or-

   MOUSE CLICK

This will force the value to change when the DblClick event is activated.

STATUS

This behavior is by design.

MORE INFORMATION

Steps to Reproduce Behavior

1. Create a new form, and place a check box on the form.

2. Save the form, and run it. The check box is not checked.

3. Double-click the check box. The check box is checked. Close the form.

4. Modify the form. Insert the following command in the DblClick event:

   MOUSE CLICK

5. Save the form, and run it. When you double-click the check box, it

   remains unchecked.

Additional reference words: 3.00 3.00b double click KBCategory: kbprg kbprb KBSubcategory: FxprgGeneral

Keywords          : FxprgGeneral 
Version           : 3.00 3.00b
Platform          : WINDOWS