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About the example of GridViewHeaderMenu , it is applied SelectionMode="Extended"
As the result , when Mouse Over on "Choose Columns" , disappearing of Context Menu occures
Isn't it able to make "subitem" of Context Menu in case of SelectionMode="Extended" ?
Or is it Bug ?
As the result , when Mouse Over on "Choose Columns" , disappearing of Context Menu occures
Isn't it able to make "subitem" of Context Menu in case of SelectionMode="Extended" ?
Or is it Bug ?