Web Forms :: Can't Reference Controls On Content Page

Jul 9, 2010

I have 2 master pages. A DefaultMaster and a SubMaster.

The SubMaster's master is the DefaultMaster.

DefaultMaster:

<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="DefaultMaster.master.cs" Inherits="DefaultMaster" %>
SubMaster
<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="SubMaster.master.cs" MasterPageFile="~/DefaultMaster.Master" Inherits="SubMaster" %>

I have created a content page based off the SubMaster:

<%@ Page Title="" Language="C#" MasterPageFile="~/SubMaster.Master" AutoEventWireup="true" CodeBehind="EmployeeDetails.aspx.cs" Inherits="EmployeeDetails" %>
<%@ MasterType TypeName= "SubMaster"%>

I am trying to use the FindControl method in the EmployeeDetails page, but am having a hell of a time trying to figure it out.

Everything I try returns a null reference:

Control test = FindControl("TextBox1"); //test = null

I can see the controls are there when I do a quickwatch on this.Page and if I try and access the controls directly, like this:

string test = TextBox1.Text; //This works fine.

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