CODEWITHSUNDEEP
vb.nettreeview
user1103342
user1103342

Reputation: 113

TreeView Root Node Selected

I have this code to select first node of TreeView. But when page loads the by default root node is other than first, I want to set the selected node as top most by default. Here is my code in page load but it's not working:

Dim nodes As TreeNodeCollection = TreeView1.Nodes
If nodes.Count > 0 Then
  ' Select the root node
  TreeView1.SelectedNode = nodes(0)                        
End If

This gives the blue underline error on this line:

TreeView1.SelectedNode = nodes(0)

The error is:

"Selected Node Property is read Only"

Please any one tell me how can I do this?

Upvotes: 2

Views: 18727

Answers (4)

dnxit
dnxit

Reputation: 7350

    List<ARTICLE_REVIEW> reviewList = eb.ArticleReviewGetByUserOID(long.Parse(Session["User_OID"].ToString()));
            treeReviews.Nodes.Clear();

            foreach (ARTICLE_REVIEW review in reviewList)
            {

                TreeNode stepNode = new TreeNode();
                stepNode.Value = review.ID.ToString();
                stepNode.Text = review.TITLE;

                treeReviews.Nodes.Add(stepNode);
                treeReviews.ExpandAll();

        // Set the root node to be selected

                treeReviews.Nodes[0].Selected = true;
            }

Upvotes: 0

Harsh
Harsh

Reputation: 3751

In ASP.Net .SelectedNode is readonly you can only get but not set it using this property. You can use Node.Selected = true or Node.Selected = false to achive the same functionality!

Try this:

    Dim nodes As TreeNodeCollection = TreeView1.Nodes
          If nodes.Count > 0 Then                      
              ' Select the root node
                nodes(0).Selected = true
           End If

Upvotes: 0

kaj
kaj

Reputation: 5251

To select a node you need to set the selected property on the node itself:

nodes(0).Selected = true

Equally you can use: 

nodes(0).Select()

Upvotes: 2

pingoo
pingoo

Reputation: 2064

 nodes(0).Selected

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.treenode.select.aspx

Upvotes: 0

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