Hello Joe,

Regarding on the Master page, since it is acting like a
template(usercontrol), it will need to divide the page into different
sections and each sections will be a Namingcontainer so that the controls
inside that section will has its own Naming convention. This naming
convention is very important for ASP.NET control structure and event
handling system to work well(correctly identitfy each control in diffferent
control hierarchy).

For your scenario, if you have javascript which want to reference some
nested controls in master page, you can consider the following approach:

In server-side code, use Control.ClientID property to get the ID it will be
rendered to client-side(represent its client-side id that can be used by
javascript). You actually use Page.ClientScript to register some javascript
functions to return these ClientIDs and use them by other scripts. e.g.

#register those functions that return the correct client id of those
controls
=========================
 public partial class ContentPage1 : System.Web.UI.Page
   {
      .............................

       protected void Page_PreRender(object sender, EventArgs e)
       {
           string script = "\r\nfunction get_TextBox1_id(){return '" +
TextBox1.ClientID + "';}";

           script += "\r\nfunction get_TextBox2_id(){return '" +
TextBox2.ClientID + "';}";

           script += "\r\nfunction get_Button1_id(){return '" +
Button1.ClientID + "';}";

           Page.ClientScript.RegisterClientScriptBlock(this.GetType(),
"id_script", script, true);

       }
   }

#you can use these functions in page's other scripts(either defined in
master page or in content page)
=======================================

function test_client_id()
   {
           alert(document.getElementById(get_TextBox1_id()));
           alert(document.getElementById(get_TextBox2_id()));
           alert(document.getElementById(get_Button1_id()));
           
   }
==================

Hope this helps you.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



==================================================

Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif
ications.



Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscriptions/support/default.aspx.

==================================================



This posting is provided "AS IS" with no warranties, and confers no rights.