private static GraphAreaBase GetAreaFromObject(object obj)
{
GraphAreaBase area = null;
if (obj is VertexControl)
{
area = ((VertexControl)obj).RootArea;
}
else if (obj is EdgeControl)
{
area = ((EdgeControl)obj).RootArea;
}
else if (obj is DependencyObject)
{
area = VisualTreeHelperEx.FindAncestorByType((DependencyObject)obj, typeof(GraphAreaBase), false) as GraphAreaBase;
}
return(area);
}
public static Visual FindDescendantByType(Visual element, Type type)
{
return(VisualTreeHelperEx.FindDescendantByType(element, type, true));
}
public static T FindDescendantByType <T>(Visual element) where T : Visual
{
Visual temp = VisualTreeHelperEx.FindDescendantByType(element, typeof(T));
return(( T )temp);
}