Hello,

whenever I use the Header or Footer template of DataList, FindControl is unable to find a label part of the DataList, and throws a NullReferenceException.

My SQLDataSource and DataList (no Header and Footer template - works):

        <asp:SqlDataSource ID="sdsMinaKop" runat="server" 
        ConnectionString="<%$ ConnectionStrings:dbCSMinaKop %>"      
        SelectCommand="SELECT kopare_id, bok_id, bok_titel, bok_pris, kop_id FROM kop WHERE kopare_id = @UserName" 
        onselecting="sdsMinaKop_Selecting">
        <SelectParameters>
            <asp:Parameter DefaultValue="admin" Name="UserName" />
        </SelectParameters>
    <asp:SelectParameters>
        <asp:Parameter Name="UserName" Type="String" />
    </asp:SelectParameters>
    </asp:SqlDataSource>

    <asp:DataList ID="DataList1" runat="server" DataKeyField="kop_id" 
        DataSourceID="sdsMinaKop" onitemdatabound="DataList1_ItemDataBound" 
            RepeatLayout="Table">
        <ItemTemplate>
        <tr>
        <td><asp:Label ID="bok_titelLabel" runat="server" Text='<%# Eval("bok_titel") %>' /></td>
        <td><asp:Label ID="bok_prisLabel" runat="server" Text='<%# Eval("bok_pris") %>' /> 
            kr</td>
        <td><a href="avbestall.aspx?id='<%# Eval("kop_id") %>'" />[X]</a></td>
        </tr>
        </ItemTemplate>
        <ItemStyle Wrap="False" />
    </asp:DataList>

With Header & Footer template - does not work.

<asp:DataList ID="DataList1" runat="server" DataKeyField="kop_id" 
        DataSourceID="sdsMinaKop" onitemdatabound="DataList1_ItemDataBound" 
            RepeatLayout="Table">
        <ItemTemplate>
        <tr>
        <td><asp:Label ID="bok_titelLabel" runat="server" Text='<%# Eval("bok_titel") %>' /></td>
        <td><asp:Label ID="bok_prisLabel" runat="server" Text='<%# Eval("bok_pris") %>' /> 
            kr</td>
        <td><a href="avbestall.aspx?id='<%# Eval("kop_id") %>'" />[X]</a></td>
        </tr>
        </ItemTemplate>
        <ItemStyle Wrap="False" />
        <HeaderTemplate>
            a
        </HeaderTemplate>
        <FooterTemplate>
            a
        </FooterTemplate>
    </asp:DataList>

Selecting event:

protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
    Label pris = (Label)e.Item.FindControl("bok_prisLabel");

    LabelTotalt.Text = (Convert.ToDouble(LabelTotalt.Text) + Convert.ToDouble(pris.Text)).ToString();
}

Why would this happen?

Thanks