Hi Rakesh,
You could get the total number of nodes by calling GetNodeCount method with the bool argument which indicates whether count should be including sub trees or not. If we pass it as true, it will count the nodes with the subtrees also.
Code:
private void button1_Click(object sender, System.EventArgs e)
{
// Call the tree control''s "GetNodeCount" method with true to
// get the total number of nodes in the tree.
int TotalNodesInTree = this.treeViewAdv1.GetNodeCount( true );
MessageBox.Show( "Total nodes in tree = " + TotalNodesInTree.ToString());
}
//Add nodes
private void button2_Click(object sender, System.EventArgs e)
{
this.treeViewAdv1.SelectedNode.Nodes.Add(new TreeNodeAdv());
}
//Remove nodes
private void button3_Click(object sender, System.EventArgs e)
{
this.treeViewAdv1.SelectedNode.Parent.Nodes.Remove(this.treeViewAdv1.SelectedNode);
}
I have created a sample as per your specification.Please take a look at it and let me know if this helps you.
Thanks for your interest in Syncfusion products.
Kind Regards,
Deepa.
TotalNodes.zip