BUG: Deleted Event Does Not Fire When Deleting Programmatically

• Microsoft Visual FoxPro for Windows, versions 3.0b, 5.0, 5.0a, 6.0

SYMPTOMS

A grid's Deleted event does not fire when a record is programmatically deleted. However, the event does fire if you interactively delete a record in a grid.

RESOLUTION

Call the grid's Deleted event explicitly using code. For the sample code in the MORE INFORMATION section, see step 3 for further instructions.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.

MORE INFORMATION

Steps to Reproduce Behavior

1. Create a program (.prg) file that contains the following code and run the program:

   
         CREATE TABLE Ztest (A c(1), B c(1))
         INSERT INTO Ztest (A,B) VALUES ('A', 'B')
   
         USE 'Ztest'
   
         F1 = CREATE('oForm')
         F1.SHOW
         * F1.gridcontrol.Deleted  && Remove comment to see grid's Deleted
                                   && event fire.
         READ EVENTS
   
         DEFINE CLASS oForm AS FORM
            ADD OBJECT GRIDcontrol AS myGRID
            PROC INIT
               DELETE
            PROC DESTROY
               CLEAR EVENTS
         ENDDEFINE
   
         DEFINE CLASS myGRID AS GRID
            RECORDSOURCE='Ztest'
            RECORDSOURCETYPE=1
            PROC DELETED
               LPARAMETERS nRecNo
               WAIT WIND "Deleted Event Fired"
         ENDDEFINE 




2. Notice that the record is marked as deleted in the grid, but the grid's Deleted event never fired. Now, double-click the deletion marker in the grid (the black rectangle to left of the first field in the grid) and note that the grid's deleted event fires as expected.



3. Remove the asterisk from the commented line of code in the example so that is reads as follows:

   
         F1.gridcontrol.Deleted 

   Run the example again. Note that the grid's Deleted event fires when explicitly called with code.

Additional query words: kbVFp600bug kbVFp500abug kbVFp300bbug kbOOP

Keywords :
Version : WINDOWS:3.0b,5.0,5.0a,6.0
Platform : WINDOWS
Issue type : kbbug