RadGrid/LINQ: CRUD not working at all (maybe not firing?)

[Paul]

I've put a RadGrid into my page, bound it to a LINQ source.  It fetches data properly but will not update. Only the cancel button operates, update does nothing at all.  I've tried doing it manually as well, tore out the grid and just put one in with no customizing and same thing.  When I tried to do it manually, it behaved as though the button events weren't firing at all... here's my code: 
I've done this previously, although I'm (more than) a bit rusty... but can't for the life of me see what I'm doing wrong.

Thanks!

<telerik:RadGrid ID="TenantGrid" runat="server" AutoGenerateDeleteColumn="True" 
                AutoGenerateEditColumn="True" CellSpacing="0" DataSourceID="LinqDataSource2" 
                GridLines="None">
                <ClientSettings>
                    <Selecting CellSelectionMode="None" />
                </ClientSettings>
                <MasterTableView AutoGenerateColumns="False" DataKeyNames="ID" 
                    DataSourceID="LinqDataSource2">
                    <CommandItemSettings ExportToPdfText="Export to PDF" />
                    <RowIndicatorColumn FilterControlAltText="Filter RowIndicator column" 
                        Visible="True">
                        <HeaderStyle Width="20px" />
                    </RowIndicatorColumn>
                    <ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column" 
                        Visible="True">
                        <HeaderStyle Width="20px" />
                    </ExpandCollapseColumn>
                    <Columns>
                        <telerik:GridBoundColumn DataField="Name" 
                            FilterControlAltText="Filter Name column" HeaderText="Name" 
                            SortExpression="Name" UniqueName="Name">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="Location" 
                            FilterControlAltText="Filter Location column" HeaderText="Location" 
                            SortExpression="Location" UniqueName="Location">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="Phone" 
                            FilterControlAltText="Filter Phone column" HeaderText="Phone" 
                            SortExpression="Phone" UniqueName="Phone">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="Email" 
                            FilterControlAltText="Filter Email column" HeaderText="Email" 
                            SortExpression="Email" UniqueName="Email">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="Contact" 
                            FilterControlAltText="Filter Contact column" HeaderText="Contact" 
                            SortExpression="Contact" UniqueName="Contact">
                        </telerik:GridBoundColumn>
                        <telerik:GridCheckBoxColumn DataField="Active" DataType="System.Boolean" 
                            FilterControlAltText="Filter Active column" HeaderText="Active" 
                            SortExpression="Active" UniqueName="Active">
                        </telerik:GridCheckBoxColumn>
                        <telerik:GridBoundColumn DataField="ID" DataType="System.Int32" 
                            FilterControlAltText="Filter ID column" HeaderText="ID" ReadOnly="True" 
                            SortExpression="ID" UniqueName="ID">
                        </telerik:GridBoundColumn>
                    </Columns>
                    <EditFormSettings>
                        <EditColumn FilterControlAltText="Filter EditCommandColumn column">
                        </EditColumn>
                    </EditFormSettings>
                </MasterTableView>
                <FilterMenu EnableImageSprites="False">
                </FilterMenu>
            </telerik:RadGrid>

 <asp:LinqDataSource ID="LinqDataSource2" runat="server" 
                ContextTypeName="FrontDesk.FrontDeskDataContext" EnableDelete="True" 
                EnableInsert="True" EnableUpdate="True" EntityTypeName="" TableName="Tenants">
            </asp:LinqDataSource>

[Paul]

I knew I had seen this once before, so dug through notes from years ago and came up with the answer that I'll leave here in case it helps someone... in fact the update button (and apparently only the update button) was causing a validation and buried in the settings I added this:

<ValidationSettings EnableModelValidation="false" EnableValidation="false" ValidationGroup="10" /> 

Not sure why it worked, or was necessary, but it did.

[Vessy]

Great! Thank you for sharing your solution with the community, Paul!