How can I disable end user sorting of the XtraTreeList?

devexpress, xtratreelist

Solution

The sorting is disabled per column. You cannot disable for the whole tree list.

Problem

I am displaying a fixed sequence in the tree list along with some values and clicking on the header will sort it by the value in the column that belongs to the header. I haven't found any obvious property of the XtraTreeList that would disallow this sorting.

Original source