I am using 2011Vol2. I use row layout column arrangement method in a ultragrid. When I use mouse to drag the column header to resize the column width, I found that I can't resize the column width with other method anymore. For example, I have a button to change column1's width to 100, if I show the form and do not do any action, I Click the button, it does, column1's width change to 100. But if i drag the column1's header to resize, and i click the button again, it doesn't work, column1's width doesn't change. I found that the column's width changed indeed, but the column's CellSizeResolved.Width didn't change. How can I resize it?