Maintaining backcolor when mouse click on treeview childs

How to maintain background color when mouse click any one of the children in ASP.NET TreeVie开发者_如何学编程w?

Use the treenodedatabound event for the tree view and add for each item onclick event to call a javascript function to do whatever you want

   protected void TreeView1_TreeNodeDataBound(object sender, TreeNodeEventArgs e)
        {
           e.Node.Text = "<span onclick='javascript:MyFunction(this);'>Text</span>";
        }

or you can add the items in this way

Dim deletenode As New TreeNode("<span onclick=""javascript:confirm('Are you sure you want to delete this ?');"">Delete</span>", "0" & dr("ProjectID"))

Js function sample

MyFunction(sender) { 
//using jquery you have the html element (td ) you can get any value from that element based on your senario 
//for example you have attribute called x holding the value you want 
alert( $(sender).attr("x")); 

//or to change the background color 
$(sender).css("background-color" , "blue"); 

}