ASP.NET

 If TreeView1.CheckedNodes.Count > 0 Then<br />
            'Display your selected nodes<br />
          <br />
            For Each node As TreeNode In TreeView1.CheckedNodes<br />
              <br />
                lblShowMessage.Text += node.Parent.Value & " " & node.Parent.Text & """"<br />
<br />
<br />
            Next<br />
<br />
<br />
        End If<br />

function DeleteSelected()
	{ 
	var a;
        var cnt=0;
        for (var i = 0; i < CheckBoxIDs.length; i++)
        {
            a=document.getElementById(CheckBoxIDs[i]);
            if(a !=null)
            {
                 if(a.checked==true)
                 {
                    cnt=cnt+1;
                 }
            }
        }
        if(cnt>0)
        {
        var str = window.confirm('Are you sure you want to PERMANENTLY delete the selected Record(s) ?');
        if(str == false)
            return false;
        else
            return true;
        }
        else 
        {
            var str = window.alert('First Check the records you want to delete');
            return false;
        }
	}

<asp:checkbox id="chkid" runat="server" width="16" xmlns:asp="#unknown" />

<asp:imagebutton id="del" imageurl="../images/b_drop.png" border="0" style="cursor: hand" xmlns:asp="#unknown">
                                    Width="16" Height="16" ToolTip="Delete" runat="server" OnClientClick="return DeleteSelected()" OnClick="del_Click"
                                    /></asp:imagebutton>