//attached 属性建立目标控件和behavior对象之间的关系
private static void OnSetCommandCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
RadGridView gridView = dependencyObject as RadGridView;
if (gridView != null)
{
RadGridViewRowActivatedBehavior behavior = GetOrCreateBehavior(gridView);
behavior.Command = e.NewValue as ICommand;
}
}
private static RadGridViewRowActivatedBehavior GetOrCreateBehavior(RadGridView gridView)
{
RadGridViewRowActivatedBehavior behavior = gridView.GetValue(RowActivatedCommandBehaviorProperty) as RadGridViewRowActivatedBehavior;
if (behavior == null)
{
behavior = new RadGridViewRowActivatedBehavior(gridView);
gridView.SetValue(RowActivatedCommandBehaviorProperty, behavior);
}
return(behavior);
}