I have a similar problem, I have several CXTResizeFormView derived views added to a CXTTabCtrl tab control. The formviews come up fine. The tab control is part of a formview itself. The tab control resizes with the parent form view, but the child form views of the tab control do not resize. The tab control seems to be sized to the largest child view added. I want the active child view of the tab control to resize to fit the parent tabl control. I have not found an codejock example or forum references that has helped me identify why the child form views are not resizing. Besides deriving from the proper *Resize* control and setting up SetResize in the OnInitUpdate for each form view, I don't know what I'm missing. I know this is not enought to debug anything, so all I'm looking for at this point is suggesting other codejock resizing related function calls that might be applicable. I'm hope to get some code snippets later on.