internal static bool Focus(this DependencyObject dependencyObject)
{
FrameworkElement element = dependencyObject as FrameworkElement;
if (element != null)
{
return(element.Focus());
}
FrameworkContentElement contentElement = dependencyObject as FrameworkContentElement;
if (contentElement != null)
{
return(contentElement.Focus());
}
if (dependencyObject is Control)
{
return(((Control)dependencyObject).Focus());
}
return(false);
}