Expanding a particular level of Radtreeview

[karthi]

Hi,

On add of a child node to a level , I want to know how to expand that particular level(to which the new node is added) and highlight the newly added node

Thanks in advance
Karthi

[Martin Vasilev]

Hello karthi,

Thank you for writing.

The easiest way to expand and highlight an inserted node is to set its Selected property to true. Please review the provided code-block below as a reference:

private void radButton1_Click(object sender, EventArgs e)
{
    RadTreeNode newNode = new RadTreeNode();
    newNode.Text = "MyNewNode";

    AddNewNode(this.radTreeView1.Nodes[1].Nodes[2], 1, newNode);
}

private void AddNewNode(RadTreeNode parentNode, int insertPosition, RadTreeNode nodeToInsert)
{
    parentNode.Nodes.Insert(insertPosition, nodeToInsert);
    nodeToInsert.Selected = true;
}

I hope this was helpful. Do not hesitate to contact me again if you need additional assistance. 

Best wishes,
Martin Vasilev
the Telerik team

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[Vivek]

I also have to collapse root node upto level 1 at client side, please let me know.

Root Node
       - Contract 1
       - Contract 2

for more details, pls refer attached snap shot.

[George]

Hello Vivek,

Thank you for writing.

Please refer to the attached project where I am recursively traversing all the nodes in the RadTreeView and collapsing/expanding them according to their check state.

I hope this will help.
 
Regards,
George
Telerik