if (!node.Checked && node.Parent != null)

{

node.Parent.UnCheck();

}

var siblingCollection = (node.Parent != null) ? node.Parent.Nodes : node.TreeView.Nodes;

var allChecked = true;

for (var i=0; i < siblingCollection.length; i++)

{

if (!siblingCollection[i].Checked)

{

allChecked =

false;

break;

}

}

if (allChecked && node.Parent != null)

{

node.Parent.Check();

}

UpdateAllChildren(node.Nodes, node.Checked);

}

function

UpdateAllChildren(nodes, checked)

{

var i;

for (i=0; i<nodes.length; i++)

{

if (checked)

nodes[i].Check();

else

nodes[i].UnCheck();

if (nodes[i].Nodes.length > 0)

UpdateAllChildren(nodes[i].Nodes, checked);

}

}

previous version (Rad controls for Asp.Net)  the above code works fine,

can u give me the solution.

thanks,

Hi Naveen,

I guess you want all child Nodes of a Node are automatically Checked if their parent has been Checked and Unchecked if their parent has been Unchecked. If so you can try setting the CheckChildNodes property to True. You can find the important client side methods and events of RadTreeView for ASP.NET AJAX by going through following links.
Client-Side Programming Basics
RadTreeNode
RadTreeView
Client-Side Events

-Princy