/**
  * Method for add a part in node and remove the par in partcatalog.
  * Status: OK
  */
 public void AddPartToNode(PartViewModel part, TechNodeViewModel node)
 {
     node.AddPart(part);
     PartCollection.Remove(part);
 }
 /**
  * Method for add a part in node and remove the par in partcatalog.
  * Status: OK
  */
 public void AddPartToNode(PartViewModel part, TechNodeViewModel node)
 {
     node.AddPart(part);
     PartCollection.Remove(part);
 }