Find Control on DDL SelectedIndexChanged event

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C#

ASP.NET

C#4.0

Hi Everybody,

I have a NestedGridView in my Child Grid i have a control called DropDownList in my Footer template , now what i want is in my DropDownSelectedIndexchanged event i want to fetch Child Grid footer control. How to do this can any one give me some solution out of this..?

<asp:DataGrid id="dg1" runat="server">
<columns>
    <asp:templatefield>
        <itemTemplate>
           <asp:Label ID="lblid" runat="server" />
        </itemtemplate>
    </asp:Templatefield>

    <asp:templateField>
        <itemTemplate>
           <asp:GridView id="gv2" runat="server">
           <columns>
              <asp:TemplateField>
                  <FooterTemplate>
                       <Asp:DropDownList id="ddl1"  runat="server"  önSelectedIndexChanged="ddl_SelectedIndexChanged" AutoPostBack="true"/>
                  </FooterTemplate>
              <asp:templateField>
               <asp:TemplateField>
                    <FooterTemplate>
                         <Asp:DropDownList id="ddl2"  runat="server" />
                    </FooterTemplate>
               <asp:templateField>
             <columns>
          </asp:GridView>
       <itemtemplate>
    <asp:templatefield>
</columns>
</asp:DataGrid>

Now in my dropdwon selected index changed event i want to find the parent grid control "lblId"..

protected void ddl_SelectedIndexChanged(object sender,EventArgs e)
{
    // here i want to find parent grid control "lblid".
}

Can anyone give me some solution out of this..