public static object AddPainel(this UserControl userControl, object painel, object parent = null,
Orientation?orientation = null, Dock?dock = null)
{
var content = parent ?? userControl.Content;
if (content == null || content is Grid)
{
return(userControl.AddContent(painel as UIElement));
}
else if (content is ScrollViewer)
{
return(userControl.AddScrollViewer(painel as UIElement, content as ScrollViewer));
}
else if (content is StackPanel)
{
return(userControl.AddStackPanel(painel as UIElement, content as StackPanel, orientation));
}
else if (content is DockPanel)
{
return(userControl.AddDockPanel(painel as UIElement, content as DockPanel, dock));
}
return(painel);
}