private void CallInsertNode()
{
int key = 0;
if(!int.TryParse(AddNodeValue, out key))
{
System.Windows.MessageBox.Show("Invalid key to be inserted\nHint: Try an integer");
}
else if (!(selectedNodes != null && selectedNodes.Count > 0)) {
System.Windows.MessageBox.Show("No node or tree selected");
}
else
{
Tree tree = new Tree(selectedNodes, Lines);
if (tree.isValidBST())
{
NodeViewModel newNode = new BSTViewModel(new BST() { X = 20, Y = 20, TextOne = key.ToString()});
newNode.Diameter = 50;
undoRedo.InsertInUndoRedo(new InsertNodeInTreeCommand(tree, Nodes, selectedNodes, newNode, Lines));
}
}
}
public BSTViewModel search(BSTViewModel root, int key)
{
if (root == null || root.key == key) return root;
if (root.key < key) return search(ro);
}
