title: How to textbox readonly that are associated with usercontrol?
body: <p>In multiple textboxes that are associated with usercontrol but i want to readonly one of them e.g srhreagion but it is not working</p>
  
  <pre><code> &lt;tr&gt;
      &lt;td style="width: 33%;"&gt;
        &lt;SearchList:Search ID="SrhRegion" runat="server" LookupType="Region" Readonly="true"/&gt;
      &lt;/td&gt;
      &lt;td style="width: 33%;"&gt;
        &lt;SearchList:Search ID="SrhSalesOffice" runat="server" LookupType="Sales_Office" /&gt;
      &lt;/td&gt;
      &lt;td style="width: 33%;"&gt;
        &lt;SearchList:Search ID="SrhSPN" runat="server" LookupType="Sales_Group" /&gt;
      &lt;/td&gt;
    &lt;/tr&gt;
  </code></pre>