How to Expand row by doubleclick ?

[Kennet]

How can I expand a row that has hierarchical data by doublecliking on the row (row with "+" sign)

How do I remove the "+" sign (if possible to expand with doubleclick)?

How do I replace the "+" sign with my own icon?

/Ken

[Ваня]

Hi,Kennet

The IsExpanded property is used to expand a hierarchical row...
As concerned to the second question I would like to show you this...it is not exactly the same but it is quite informative.
http://www.telerik.com/community/forums/wpf/gridview/control-expander-on-selectionchanged-event.aspx....
If you want to customize the appearance of the toogle button you should do it in Blend..

Regards,Vanya