static UserControl()
{
// UseContentTemplate
ControlTemplate template = new ControlTemplate();
template.SetMethodToInstantiateFrameworkTemplate((owner) =>
{
TemplateInstance instance = new TemplateInstance();
instance.TemplateOwner = owner;
instance.TemplateContent = ((UserControl)owner).Content as FrameworkElement;
return(instance);
});
template.Seal();
UseContentTemplate = template;
}