c# - How to get reference of DropDownList into codebehind? -

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<asp:gridview id="gridview1" runat="server" autogeneratecolumns="false"  onrowupdating="gridview1_rowupdating" onrowediting="gridview1_rowediting">     <columns>         <asp:templatefield headertext="test">             <edititemtemplate>                 <asp:updatepanel id="up1" runat="server" updatemode="conditional">                     <contenttemplate>                         <asp:dropdownlist id="dropdownlist1" runat="server" autopostback="true"                              onselectedindexchanged="dropdownlist1_selectedindexchanged">                             <asp:listitem>test1</asp:listitem>                             <asp:listitem>test2</asp:listitem>                             <asp:listitem>test3</asp:listitem>                         </asp:dropdownlist>                     </contenttemplate>                 </asp:updatepanel>             </edititemtemplate>             <itemtemplate>                 <asp:label id="label1" runat="server" text='<%# bind("ss") %>' />             </itemtemplate>         </asp:templatefield>         <asp:templatefield headertext="rate">             <edititemtemplate>                 <asp:updatepanel id="up2" runat="server" updatemode="conditional">                     <contenttemplate>                         <asp:dropdownlist id="dropdownlist2" runat="server" />                     </contenttemplate>                 </asp:updatepanel>             </edititemtemplate>             <itemtemplate>                 <asp:label id="label2" runat="server" text="label" />             </itemtemplate>         </asp:templatefield>         <asp:commandfield showeditbutton="true" />     </columns> </asp:gridview>

how reference of dropdownlist2 in dropdownlist1_selectedindexchanged when grid in edit mode?

after editing question. can achieve like...

protected void dropdownlist1_selectedindexchanged(object sender, eventargs e) {     dropdownlist dropdownlist2 = ((dropdownlist)((dropdownlist)sender).parent.findcontrol("dropdownlist2")); }

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