FIX: Form Not Cleared from Memory When Grid Has the Focus

MORE INFORMATION

Steps to Reproduce Problem

1. Create s program named Main.prg that contains this code:

      SET PROCEDURE TO Main.prg
      ON KEY LABEL F12 CLEAR EVENTS
      ON KEY LABEL F11 SET SYSMENU TO DEFAULT
   
      DO MyMenu.MPR
      READ EVENTS
   
      SET SYSMENU TO DEFAULT
   
      PROCEDURE ClearForms                  && Clear all open forms
          IF _SCREEN.FormCount > 0
               FOR i = _SCREEN.FormCount TO 1 STEP -1
                    _SCREEN.Forms(i).Release
               ENDFOR
          ENDIF
   							

2. Create a menu named MyMenu.
   1. Add a Form1 prompt that uses this command:

            DO FORM Form1.SCX
      								

   2. Add a Clear Forms prompt that uses this command:

            DO ClearForms
      								

   3. Add an Exit program prompt that uses this command:

            CLEAR EVENTS
      								

   4. Generate and save the menu in the directory where Main.prg is located.
3. Create a form named Form1.
   1. Add the Customer and Orders tables located in the Vfp\Samples\Data directory to the data environment.
   2. Drag a field from the Customer table onto the form to create a text box.
   3. Drag the Orders table onto the form to create a grid.
   4. Save the form in the directory where Main.prg is located.
4. Open the Debug window and place _screen.formcount in the left pane.
5. Run Main.prg.
6. Click the Form1 menu, and then click the grid to give it the focus. _screen.formcount will equal 1. Multiple instances of Form1 can be run with the same result.
7. Release Form1 by clicking the Clear Forms menu. Form1 will clear off the screen, but _screen.formcount will still equal 1.
8. Exit the program, or click the Clear Forms menu again to return _screen.formcount to 0.