Validation not working on Model Bound Grid

[Michael]

 

I can not get this simple required field validator column to trigger. I've followed the examples and tried various different syntax options. Can anyone shed lany light on why this isn't firing?

<telerik:RadGrid ID="RadGrid1" runat="server" AllowAutomaticInserts="true" AllowPaging="true"
                        ItemType="MYCOMPANY.BusinessData.BusinessObjects.Participant"  
                        AutoGenerateColumns="False" AutoGenerateDeleteColumn="true"
                        AutoGenerateEditColumn="True" 
                        GroupPanelPosition="Top" Skin="Metro">
                        <%--<ValidationSettings EnableValidation="true" CommandsToValidate="PerformInsert" />--%>
                        <MasterTableView CommandItemDisplay="Top" AllowAutomaticInserts="true" InsertItemDisplay="Top" DataKeyNames="ParticipantID" 
                            InsertMethod="insertParticipant" DeleteMethod="deleteParticipant" UpdateMethod="updateParticipant" SelectMethod="getParticipants" 
                            PageSize="12">
                                <Columns>
                                <telerik:GridBoundColumn DataField="Username" HeaderText="Username" UniqueName="Username" ColumnEditorID="Username">
                                    <ColumnValidationSettings EnableRequiredFieldValidation="true" EnableModelErrorMessageValidation="true">
                                        <RequiredFieldValidator SetFocusOnError="true" ErrorMessage="* - Required Field" ForeColor="Red" Font-Bold="true" />
                                        <ModelErrorMessage ModelStateKey="Username" AssociatedControlID="Username" SetFocusOnError="true" ForeColor="Red"                                                   Font-Bold="true" />

                                    </ColumnValidationSettings>
                                </telerik:GridBoundColumn>

 

 

Thanks in advance!

Michael

[Michael]

I'm noticing that my classes don't have data annotations. Going to put them in and see if it helps.