Columns are collapsed when using group in datagrid

Question

I have a datagrid in which I display several objects with some columns. I added grouping to the datagrid and now it seems that it doens\'t like the colulmns with width of \'*\'

Answer 1

Try to specify the GroupStyle.Panel in your DataGrid. The reason for this is the fact that the default GroupStyle.Panel (StackPanel) does not fit for the DataGrid Width "*" and the columns will collapse.