Populate DropDownList in EditItemTemplate of GridView

I am trying to bind dropdownlist in Gridview under EditItemTemplate under RowBound event. But it gives me blank rows in the drop down list: Here is my Design 

<asp:TemplateField HeaderText="Description">
                            <ItemTemplate>
                                <asp:Label ID="lblDescription" runat="server" Text='<%# Bind("Description") %>' Width="400px"></asp:Label>
                            </ItemTemplate>
                            <EditItemTemplate>
                                <asp:DropDownList ID="ddlNewDesc" runat="server" Width="400px" ></asp:DropDownList>
                            </EditItemTemplate>
                            <FooterTemplate>
                                <asp:DropDownList ID="ddlNewDescFooter" runat="server" Width="400px">
                                </asp:DropDownList>
                            </FooterTemplate>
                        </asp:TemplateField>

Here is code behind:

 protected void grdFerries_RowDataBound(object sender, GridViewRowEventArgs e)
        {

            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                if (e.Row.RowState == DataControlRowState.Edit)
                {
                    DropDownList ddlNewDesc = (DropDownList)e.Row.FindControl("ddlNewDesc");
                    DataAccessClass DAC = new DataAccessClass();
                    string Query = "select description from JoursFeries where Year(JoursFeries.date) >= Year(GETDATE()) order by date asc";
                    DataTable dtddl = DAC.ReturnDatatablefromQuery(Query, DBConnectionString);
                    ddlNewDesc.DataSource = dtddl;
                    ddlNewDesc.DataTextField = "description";
                    ddlNewDesc.DataValueField = "description";
                    ddlNewDesc.DataBind();
                }
            }
        }

I see the dropdown but the dropdown is blank, but there are rows in the database for this column and in the footer row it is working fine.

Pls help.