PRB: Current Edit Not Saved with TABLEUPDATE() from Toolbar

ID: Q139155

3.00 WINDOWS kbprg kbprb

The information in this article applies to:

Microsoft Visual FoxPro for Windows, version 3.0

SYMPTOMS

Using the TABLEUPDATE() command in a toolbar command button click event while row or table buffering is enabled does not save the current object's value.

CAUSE

When you click a toolbar command button, the focus never leaves the object on the form. Therefore, any changes that are made to that object are not sent to the buffer.

RESOLUTION

The following code sample is very generic and only handles edit and text boxes. The code must be modified for combo boxes and grids containing text boxes, edit boxes, and combo boxes. Note that with combo boxes, you will have to use the DisplayValue instead of Value.

Add the following code to the Click event of the Toolbar command button:

*-- Code begins here IF ;

   INLIST(_screen.ActiveForm.ActiveControl.BaseClass,'Textbox','Editbox')
   REPLACE (_screen.ActiveForm.ActiveControl.ControlSource) ;
      WITH _screen.ActiveForm.ActiveControl.Value

ENDIF

   =TABLEUPDATE()
   _screen.ActiveForm.Refresh

*-- Code ends here

STATUS

This behavior is by design.

MORE INFORMATION

When editing data in a text box, edit box, or combo list box, you must leave the object to force the data to be written to the buffer or table if you are using table or row buffering.

Steps to Reproduce Behavior

1. Create a Toolbar Class.

2. Add a command button to the toolbar.

3. In the click event of that command button, add this code:

   =TABLEUPDATE()
   _Screen.ActiveForm.ActiveControl.Refresh

4. Save and close the toolbar.

5. Create the table. Type the following in the Command window:

   CREATE TABLE temp (myfield C(10))
   INSERT INTO temp VALUES ("Hello")

6. Create the form:

   a. Type the following command in the Command window:

      CREATE FORM ztest

   b. Add the Temp table to the Data Environment (DE) of the form.

   c. Set the BufferModeOverride of Cursor1 to 3, optimistic row buffering
      in the DE.

   d. Click and drag myfield from the DE to the form.

7. Run the test.

   a. Instantiate the toolbar with CREATEOBJECT().

   b. Type the following in the Command window:

      DO FORM ztest

   c. Type "TESTING" in the field.

8. Click the Toolbar command button. Notice that the value has changed back

   to "Hello."

Additional reference words: 3.00 VFoxWin KBCategory: kbprg kbprb KBSubcategory: FxprgToolbar

Keywords          : FxprgToolbar 
Version           : 3.00
Platform          : WINDOWS