Custom controls on the VFP toolbar
One of the great strengths of the object-oriented features that were introduced in
Visual Foxpro is the way that you can so easily subclass the base controls and build
your own class library of custom controls. Usually you will have
this class library in the Classes tab of the Project Manager
and you will drag the class from there to the Form Designer
in order to add that control to the form.
Sometimes though this is inconvenient or just not possible. Perhaps you
want to replace all the buttons on the standard toolbar with your own
controls in order to enforce a standard look and feel across the
application without having to alter all the controls one by one. Perhaps
you want to add one of your controls to a
in place of the standard textbox. It's not possible to drag-and-drop from a VFP class
library into the columns of a grid, you have to select a control from the toolbar.
Adding your own class library to the standard FoxPro Form Controls toolbar solves
problems like these and it's a straightforward operation.
Use the button on the
Form Controls toolbar:
from the menu that drops down.
A file selection dialog will appear showing the VFP visual class
libraries. These are held on disk in dbf format as .vcx and .vct files.
Navigate to your class library and click the
button to display the
classes from this library on the toolbar.
The screenshot at the top of the page shows
part of the toolbar for one of our libraries. It replicates
all the standard controls (with some
but the tooltip shows that it also includes a new cmdClose button.