PRB: Disabled ComboBox Item Disappears

ID: Q134243

The information in this article applies to:

Microsoft Visual FoxPro for Windows, version 3.0

SYMPTOMS

Disabling a ComboBox list item by using the This.List(This.ListItemId)='\' method causes the disabled item to disappear when the RowSourceType is either STRUCTURE or VALUE.

RESOLUTION

Use the following statement, and ensure that the DisabledItemForeColor and DisabledItemBackColor properties display the item properly:

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

STATUS

Microsoft is researching this behavior and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Behavior

Example One:

1. Create a Form with a combo box (with a style of DropDown Combo).

2. In the DblClick method of the combo box, place this code:

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

3. In the RowSource for the combo box, place this code:

   customer  && This the \Samples\Data\Customer.dbf

4. In the RowSourceType for the combo box, select 8 - STRUCTURE.

5. Run the Form, and select an item on the list. When the item appears in

   the combo box, double-click to disable the item. Scroll through the list
   to see that the item is not visible.

Example Two:

1. In the DblClick method of the combo box, place this code:

   This.List(This.ListItemId)='\'+ This.List(This.ListItemId)

2. Rerun the Form. The disabled item remains visible with the

   DisabledItemForeColor and DisabledItemBackColor properties.

Additional reference words: 3.00 VFoxWin OOP KBCategory: kbprg kbprb KBSubcategory: FxprgGeneral