Marc, Thanks for the help.
However, the abovementioned code will remove the header of columns as well, which is not what I want.
I searched the forum and somebody had code like this:
FrameworkElementFactory groupByControl = new FrameworkElementFactory(typeof(HierarchicalGroupByControl));
var template = new DataTemplate();
template.VisualTree = groupByControl;
this.xceedTableflowView.FixedHeaders = template;
I don't like the idea of creating new template. Can we replace the "NoGroupContent" somehow? Can we do it in xaml?
Or is there a better way?