Hello Vasilly ,

Thank you for posting to our forum.

In order to ensure that your requirement is addressed correctly may I know which kind of rules you wants to set in the grid when it calculates the SizeToCells column width.

Please provide more information about your requirement in order to assist you further.

My header text block is wrapped when I shrink the column. But if I set SizeToCells, the header text is trimmed. by I would like to set the column width equals not trimmed text block.