Bind dropdown list to editItemTemplate & footerTemplate in gridview

I have a grid where I try to bind dropdown list to an FooterTemplate and EdiItemTemplate.

<asp:TemplateField HeaderText="Role" SortExpression="Role">
                                    <HeaderStyle Width="100px"   HorizontalAlign="Center" Wrap="False"></HeaderStyle>
                                    <EditItemTemplate>
                                        <asp:DropDownList ID="ddlRole" runat="server">
                                        </asp:DropDownList>
                                    </EditItemTemplate>
                                    <FooterTemplate>
                                        <asp:DropDownList ID="ddlFRRole" runat="server">
                                        </asp:DropDownList>
                                    </FooterTemplate>
                                    <ItemTemplate>
                                        <asp:Label ID="lblRole" runat="server" Text='<%# Bind("[Role_Cd]") %>'></asp:Label>
                                    </ItemTemplate>
                                </asp:TemplateField>

I am using this code and no luck. I am not able to bind the values to the drop down. Can anyone correct me if I am wrong?

protected void UPGrid_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            DropDownList ddlRole = (DropDownList)e.Row.FindControl("ddlRole");
            DropDownList ddlFRRole = (DropDownList)e.Row.FindControl("ddlFRRole");
            ddlRole.DataSource = UPRepository.GetRoles();                
            ddlRole.DataTextField = "Role_Cd";
            ddlRole.DataValueField = "Role_Cd";
            ddlRole.DataBind();
            ddlFRRole.DataSource = UPRepository.GetRoles();                
            ddlFRRole.DataTextField = "Role_Cd";
            ddlFRRole.DataValueField = "Role_Cd";
            ddlFRRole.DataBind();

        }
    }