Need help. DropDownList with ModelBinding. Getting "has a SelectedValue which is invalid because it does not exist in the list of items" ERROR

Hi I have a dropdownlist in my I get the following error: 'ddlEditSRNumber' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value The markup language is the following <td><asp:DropDownList ID="ddlEditSRNumber" runat="server" Width="200" AppendDataBoundItems="true" SelectedValue="<%# Item.FACRECORD.FAC_RECORD_UID %>" SelectMethod="GetSubmitterResponseNumbers"> <asp:ListItem Text="[Select]" Value="0" /></asp:DropDownList> <span style="color: red;">^*</span><asp:CompareValidator ID="cvEditSRNumber" runat="server" ControlToValidate="ddlEditSRNumber" ValueToCompare="0" Operator=" ...