private void SelectFirstElement()
{
ClearSelection();
var el = LayoutElements.OfType <LayoutMap>().FirstOrDefault() ?? LayoutElements.FirstOrDefault();
if (el != null)
{
AddToSelection(new List <LayoutElement> {
el
});
}
}
/// <summary>
/// Gets requested element from the layout
/// </summary>
protected T GetElement <T>(ElementType role) where T : LayoutElement
{
return(LayoutElements.FirstOrDefault(item => item is T && item.Type == role) as T);
}