majs

                else if (this.LeftChild != null && this.RightChild == null)
                {
                    if(IsLeftChild)
                    {
                        this.Parent.LeftChild = this.LeftChild;
                        this.LeftChild.Parent = this.Parent;
                    }
                    else if (IsRightChild)
                    {
                        this.Parent.RightChild = this.LeftChild;
                        this.LeftChild.Parent = this.Parent;
                    }
                }