How to check all child nodes when parent node is checked

Admin Number of posts : 216 Registration date : 2007-01-01

Give a cool idea to any programmer

Try this:

Add the following javascript functions to your ASPX page (or ASCX or MasterPage):

Code:: function UpdateAllChildren(nodes, checked)
{
var i;
for (i=0; i<nodes.length; i++)
{
checked ? nodes[i].Check() : nodes[i].UnCheck();
if (nodes[i].Nodes.length > 0)
{
UpdateAllChildren(nodes[i].Nodes, checked);
}
}
}

function CheckChildNodes(node)
{
UpdateAllChildren(node.Nodes, node.Checked);
}

Then use the "AfterClientCheck" handler in your control definition:

Code:: <radt:radtreeview
id="RadTree1"
runat="server"
AfterClientCheck="CheckChildNodes"
...
/>

Enjoy!