I don't hope group also sort by clicking head in datagrid

Hi all,

I create a datagrid, binding with ViewModel. Then set the SortMemberPath to the property in ViewModel. At this time, everything is ok.

Then I add group for the rows. The question is that the group also is sort when clicking head.

But what I want is setting the position of group fixed, and rows in each group could be sorted.

how to do?

thanks.