Tracy,
You can use some of the code from the class browser. It has a draggable seperation bar. The source code is in C:\Program
Files\VFP8\Tools\xsource\xsource.zip file.
Look at the code attached to shpSplitterH and shpSplitterV objects in browser.scx.
>However, I would like to add additional functionality. I would like to add the ability for the user to widen (expand) the treeview control if desired (to view all branches left to right) and have the width of the grid narrow respectively just like the windows explorer window (dragging the separator bar left or right widens/narrows each window respectively). Is there anyway to do this? Is there some other control that does this and has the same functionality of what I'm doing with the treeview and grid?