e.Item.FindControl("DropdownId") Returning Null

Question

Hi Group,

I have a datagrid with dropdown in my application.
I want to fill the data in dropdown by an ArrayList
for that I am using "e.Item.FindControl("DropdownId")"
but this function is returning NULL THUS I m getting exception
"Object Refrence not set to an Instance to Object",

Here is the code I wrote (ASP.NET 1.1)...

Hope I get some help from you,

 

///Cdoe Behind

  private void dataGrid1_ItemDataBound(object sender, DataGridItemEventArgs e)
  {

   if(e.Item.ItemType == ListItemType.Footer)
   {
    
    
    
    System.Web.UI.WebControls.DropDownList drp = new     DropDownList();
    drp = (DropDownList)e.Item.FindControl("listAnup");
    drp.DataSource=newArrayList;//This Statement throwing exception
    drp.DataBind();
   }
  
  }

 

 

///aspx code

<asp:datagrid id=dataGrid1 style="Z-INDEX: 101; LEFT: 256px; POSITION: absolute; TOP: 8px" runat="server" ShowFooter="True" CaptionAlign="Top" Caption="Hello" BackColor="RosyBrown" AllowPaging="True" Height="256px" Width="70%" DataSource="<%# dataSet1 %>" PageSize="2" CellPadding="2" CellSpacing="2">
    <FooterStyle ForeColor="#FFFF80" BorderColor="#E0E0E0" BackColor="Gray"></FooterStyle>
    <SelectedItemStyle ForeColor="#804040" BorderColor="#FFE0C0" BackColor="Aqua"></SelectedItemStyle>
    <EditItemStyle ForeColor="#FFE0C0" BackColor="#C0FFC0"></EditItemStyle>
    <AlternatingItemStyle ForeColor="DarkOliveGreen" BackColor="#FFC080"></AlternatingItemStyle>
    <ItemStyle ForeColor="#404040" BackColor="Khaki"></ItemStyle>
    <HeaderStyle BackColor="RosyBrown"></HeaderStyle>
    
    
    <Columns>
     <asp:TemplateColumn HeaderText="Select">
      <ItemTemplate>
       <asp:Label id="labelSelectTyre" runat="server"></asp:Label>
      </ItemTemplate>
     </asp:TemplateColumn>
     <asp:TemplateColumn HeaderText="MTD">
      <ItemTemplate>
       <asp:DropDownList id="listAnup" AutoPostBack="True" runat="server" Width="150px"></asp:DropDownList>
      </ItemTemplate>
     </asp:TemplateColumn>
    </Columns>
    
    <PagerStyle VerticalAlign="Middle" ForeColor="#404000" BackColor="White" PageButtonCount="5"
     Mode="NumericPages"></PagerStyle>
    <PagerStyle NextPageText="Next" PrevPageText="Previous" HorizontalAlign="Center" Position="TopAndBottom"
     BackColor="#D8D8DA" PageButtonCount="15" Mode="NumericPages"></PagerStyle>
    
    <PagerStyle NextPageText="Next" PrevPageText="Previous"
    HorizontalAlign="Center" Position="TopAndBottom" BackColor="#D8D8DA"
    PageButtonCount="15" CssClass="dgridPaging"
    Mode="NumericPages"></PagerStyle>
    
   </asp:datagrid></form>