Ajax's update panel provides an easy way of doing this. Just group your radio buttons (those that need to be enabled/disabled) inside one update panel such that (in your .aspx code):



 <asp:UpdatePanel ID="GroupUpdateTheseRadioButtons" runat="server" UpdateMode="Always">
                        <ContentTemplate>
                              ....
                                           <tr>
                                              <td><asp:RadioButton ID="rbtn1" autopostback="false" runat="server" Text="bla bla bla1" GroupName="SendTo" CssClass="radiobtn"/></td>                                              
                                              <td><asp:RadioButton ID="rbtn2" autopostback="false"  runat="server" Text="bla bla bla2" GroupName="SendTo" CssClass="radiobtn"/></td>
                                           </tr>
                                   ...
                                  </ContentTemplate>
                                 </asp:UpdatePanel>



then your triggering control:


...

<tr>
                                             <td align="left"><asp:RadioButton ID="rbtnTRIGGER" autopostback="true" runat="server" Text="disableEnable" GroupName="TRIGGERGROUP" CssClass="radiobtn" Checked="True" oncheckedchanged="rbtnTRIGGER_CheckedChanged"/></td>


...


Then in your code behind (.aspx.cs)
  protected void rbtnTRIGGER_CheckedChanged(object sender, EventArgs e)


        {
            if (rbtnTRIGGER.Checked)
            {
               rbtn1.enabled=true;
               rbtn2.enabled=true;
            } 
        }





 


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    About the Author

    The author have 12+ years experience in IT Industry with varying job roles from system developer/analyst/consultant positions. Majority of her development, implementation and systems support background focus on Financial/Banking/Credit Solutions.

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