Question

In my asp.net web application, i have a tree view control with checkbox enabled.Now i want to change the check box state to True when SelectedNodeChanged event fired.

 protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
 {
            //code
 }

Please Guide me to get out of this issue…

Answer 1

The SelectedNode has a Checked property which points to the checkbox of the item. You can set it checked by setting the Checked property to true.

 TreeView1.SelectedNode.Checked = true;

To check all the child-nodes you can do the following:

 foreach (TreeNode node in TreeView1.SelectedNode.ChildNodes)
    node.Checked = true;