public void Insert(T newItem)
 {
     if (data == null)
     {
         data = newItem;
     }
     else
     {
         int res = data.CompareTo(newItem);
         if (res < 0)
         {
             if (this.LChild == null)
             {
                 this.LChild = new Node <T>()
                 {
                     Data = newItem
                 }
             }
             ;
             else
             {
                 LChild.Insert(newItem);
             }
         }
         else
         {
             if (this.RChild == null)
             {
                 this.RChild = new Node <T>()
                 {
                     Data = newItem
                 }
             }
             ;
             else
             {
                 RChild.Insert(newItem);
             }
         }
     }
 }