DropDownList Compare Validation

DDLModality.Items.Insert(0, "Select");

<asp:CompareValidator ID="ReqReportType" runat="server" ControlToValidate="DDLReportType" ValidationGroup="Date" ErrorMessage="*" Operator="NotEqual" ValueToCompare="Select"/>


ddlPackageName.Items.Insert(0, new ListItem("Select", "0"));

<asp:CompareValidator ID="CmpPackageName" runat="server" ControlToValidate="ddlPackageName"
                                ValidationGroup="Orgnizer" ErrorMessage="*" Operator="NotEqual" ValueToCompare="0">
                                <asp:Image ID="I1" runat="server" Height="20px" Width="20px" ImageUrl="~/App_Themes/Images/Cancel.png" />
                            </asp:CompareValidator>