how to remove plus and minus symbols in treeview checkbox co

try

protected void TreeViewStatesAndDistricts_TreeNodeDataBound(object sender, TreeNodeEventArgs e)
    {
       
        e.Node.SelectAction = TreeNodeSelectAction.SelectExpand;     
   
    }



and

  bool Block = false;
    protected void TreeViewStatesAndDistricts_TreeNodeExpanded(object sender, TreeNodeEventArgs e)
    {
        if (Block == true)  // stop recursive re-entrancy
            return;

        Block = true;
        TreeViewStatesAndDistricts.CollapseAll();
        e.Node.Expand();
        Block = false;
}

Sir, i need check box tree view controls .

 ex:

1.Residential Land
        *Residential apartment
        *Residential Villa
        *Residential House
2.Commercial Land
        *Commercial Show room
         *Commercial Land
        *Commercial office
3.Land
        *commercial common land
        *Residential common land
the 1st parent node select time only expand 1st child node. 2nd parent node select time only expand 2nd child node.3rd parents select time expand 3rd child node

I think you need to use accordian dynamically instead of treeview
because you dont want to show expand collapse buttons
like as in below link

http://www.aspsnippets.com/Articles/Populate-jQuery-Accordion-with-data-from-Database-in-ASPNet-using-C-and-VBNet.aspx

what do you mean by
1st root checkbox select time dnot mimize the 2nd and 3rd root checkbox control

do you face problem to minimize child nodes on parent click