customize wpf grid cell

Question

I have 2 tables with a relationship between them. I am trying to display the content of the parent table in a datagrid in such way that one of the datagrid cells to be expandable, being able to display the content of the child table. What is the(best) way to achieve this? I assume the little black arrow (cell expand) is part of the datagrid control and it shouldn't be designed in any way.

Answer 1

The WpfToolkit datagrid has a feature called Row Details . You can design a UI for the related table in the template. You can also specify that the details be shown always, on selection, or controlled manually.