Article ID: 139912
Article Last Modified on 2/10/2000
APPLIES TO
- Microsoft Visual FoxPro 3.0 Standard Edition
This article was previously published under Q139912
SUMMARY
When creating a form programmatically, you may want to add a data environment to the form. This article illustrates one method you can use to create a form and add a data environment to that form programmatically.
MORE INFORMATION
When you create a form programmatically, the DataEnvironment property cannot be used to pass a table to the form because it is a read-only property. Therefore, to add a data environment to a form programmatically, you must create the data environment object separately during the creation of the form. Then, you must use the SaveAs method to save both the form and the data environment in the new form (.scx) file. The following code illustrates this technique.
Code Sample
*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
BEGIN CODE SEGMENT
*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
SET DEFAULT TO C:\VFP\SAMPLES\DATA
oMyForm1=CREATEOBJECT('Form')
oMyDE1 =CREATEOBJECT('DataEnvironment')
oMyDE1.ADDOBJECT('Curs1', 'Cursor')
oMyDE1.Curs1.DataBase='TESTDATA.DBC'
oMyDE1.Curs1.CursorSource='Customer'
oMyForm1.ADDOBJECT('Txt1', 'TextBox')
oMyForm1.Txt1.ControlSource='Customer_ID'
oMyForm1.Txt1.Visible=.T.
*-- You can add as many objects as you want.
*-- Use the form's SaveAs method to save everything
*-- to an .scx File. This is actually how the DE
*-- is associated to the form.
oMyForm1.SaveAs('MyForm2', oMyDE1)
*-- Note that the second parameter specifies the
*-- associated Data Environment
RELEASE oMyForm1
DO FORM MyForm2
*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
END CODE SEGMENT
*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
You can also use the following command to open the form in design mode:
MODIFY FORM MyForm2
Additional query words: VFoxWin
Keywords: kbcode KB139912
