Update fails when using GridTemplateColumn

[stevied]

I have a radgrid which is using GridTemplateColumn to enable me to manage the content the way I want.  The Grid worked when i was using GridBoundColumns but when i switch i'm getting the following error.

"exhibition with ID 4 cannot be updated. Reason: Cannot insert the value NULL into column 'exhibitionTitle', table 'trevorbollenart.dbo.exhibitions'; column does not allow nulls. UPDATE fails. The statement has been terminated."

All the controls have been filled in (including exhibitionTitle) does anyone have any ideas? I'm guessing I can mix and match GridTemplateColumn and GridBoundColumns?


Code show below.

<h2>Manage exhibitions</h2>
        <telerik:RadScriptManager ID="RadScriptManager1" Runat="server">
        </telerik:RadScriptManager>

        <p>Items marked with a <span class="radgrid-required">*</span> are required. </p>
        <br />

        <br />
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="RadGrid1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="RadGrid1" LoadingPanelID="RadAjaxLoadingPanel1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>
        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" Skin="Black" runat="server" />
       <telerik:RadGrid ID="RadGrid1" GridLines="None" runat="server" AllowAutomaticDeletes="True"
            AllowAutomaticInserts="True" AllowAutomaticUpdates="True" AllowPaging="True" PageSize="10"
            AutoGenerateColumns="False" DataSourceID="SqlDataSource1" AllowSorting="True" Skin="Black" ShowStatusBar="True" >
        <PagerStyle Mode="NextPrevAndNumeric" />
        <MasterTableView DataKeyNames="exhibitionID" DataSourceID="SqlDataSource1" CommandItemDisplay="Bottom" Name="exhibitions"
        CommandItemSettings-AddNewRecordText="Add New Exhibition"  >
                <RowIndicatorColumn>
                    <HeaderStyle Width="20px" />
                </RowIndicatorColumn>
                <ExpandCollapseColumn>
                    <HeaderStyle Width="20px" />
                </ExpandCollapseColumn>
<CommandItemSettings AddNewRecordText="Add New Exhibition"></CommandItemSettings>
    <Columns>
       <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn" HeaderText="Edit">
                        <ItemStyle CssClass="MyImageButton" />
                    </telerik:GridEditCommandColumn>

        <telerik:GridTemplateColumn HeaderText="Exhibition Title" UniqueName="exhibitionTitle" >
            <EditItemTemplate>
                <asp:TextBox ID="txtExhibitionTitle" runat="server" Width="300" MaxLength="500" Text='<%#Eval("exhibitionTitle")%>' /> <span class="radgrid-required">*</span>
                <asp:RequiredFieldValidator ID="rfvTitle" runat="server" ErrorMessage="Please enter the exhibition title" ControlToValidate="txtExhibitionTitle" Display="Dynamic" />
            </EditItemTemplate>
            <ItemTemplate>
            <%#Eval("exhibitionTitle")%>
            </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn HeaderText="Gallery Name">
            <EditItemTemplate>
                <asp:TextBox ID="galleryName" runat="server" Width="300" MaxLength="100" Text='<%#Eval("galleryName")%>'  /> <span class="radgrid-required">*</span>
                <asp:RequiredFieldValidator ID="rfvGalleryName" runat="server" ErrorMessage="Please enter the gallery name" ControlToValidate="galleryName" Display="Dynamic" />
            </EditItemTemplate>
            <ItemTemplate>
            <%#Eval("galleryName")%>
            </ItemTemplate>
        </telerik:GridTemplateColumn>

         <Telerik:GridDateTimeColumn DataField="eventDateTime"
            HeaderText="Event Date & Time" SortExpression="eventDateTime"
            UniqueName="eventDateTime" PickerType="DateTimePicker"  >
        </Telerik:GridDateTimeColumn>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn" HeaderText="Gallery Address">
            <ItemTemplate>
            <%#Eval("galleryAddress")%>
            </ItemTemplate>
            <EditItemTemplate>
                <asp:TextBox ID="galleryAddress" runat="server" TextMode="MultiLine" Height="100" Width="300" MaxLength="500" Text='<%#Eval("galleryAddress")%>'  /> <span class="radgrid-required">*</span>
                <asp:RequiredFieldValidator ID="rfvGalleryAddress" runat="server" ErrorMessage="Please enter the gallery address" ControlToValidate="galleryAddress" Display="Dynamic" />
            </EditItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn HeaderText="Gallery Website">
            <ItemTemplate>
            <%#Eval("galleryUrl")%>
            </ItemTemplate>
            <EditItemTemplate>
                http://<;;asp:TextBox ID="galleryUrl" runat="server" Width="300" MaxLength="100" /> i.e. www.trevorbollen.co.uk
            </EditItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridBoundColumn DataField="galleryTel" HeaderText="Gallery Tel No"
            SortExpression="galleryTel" UniqueName="galleryTel">
        </telerik:GridBoundColumn>
        <telerik:GridTemplateColumn HeaderText="Notes">
            <ItemTemplate>
            <%#Eval("notes")%>
            </ItemTemplate>
            <EditItemTemplate>
               <asp:TextBox ID="notes" runat="server" TextMode="MultiLine" Width="300" MaxLength="500" />
            </EditItemTemplate>
        </telerik:GridTemplateColumn>
       <telerik:GridButtonColumn ConfirmText="Delete this exhibition?" ConfirmDialogType="RadWindow"
                        ConfirmTitle="Delete" ButtonType="ImageButton" CommandName="Delete" Text="Delete"
                        UniqueName="DeleteColumn">
                        <ItemStyle HorizontalAlign="Center" CssClass="MyImageButton" />
                    </telerik:GridButtonColumn>

    </Columns>

<EditFormSettings>

<EditColumn  ButtonType="ImageButton" CancelImageUrl="~/images/btn-cancel.jpg" UpdateImageUrl="~/images/btn-update.jpg" InsertImageUrl="~/images/btn-insert.jpg"  />
</EditFormSettings>

</MasterTableView>
            <HeaderStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"
                Font-Strikeout="False" Font-Underline="False" ForeColor="White" Wrap="True" />
        </telerik:RadGrid>
        <br />


        <br />
        <asp:SqlDataSource ID="SqlDataSource1" runat="server"
            ConnectionString="<%$ ConnectionStrings:trevorbollenartConn %>"
            InsertCommand="AddNewExhibition" InsertCommandType="StoredProcedure"
            SelectCommand="GetAllExhibitions" SelectCommandType="StoredProcedure"
            UpdateCommand="UpdateExhibition" UpdateCommandType="StoredProcedure"
            DeleteCommand="DeleteExhibition" DeleteCommandType="StoredProcedure">
            <DeleteParameters>
                <asp:Parameter Name="exhibitionID" Type="Int32" />
            </DeleteParameters>
            <UpdateParameters>
                <asp:Parameter Name="exhibitionID" Type="Int32" />
                <asp:Parameter Name="exhibitionTitle" Type="String" />
                <asp:Parameter Name="galleryName" Type="String" />
                <asp:Parameter Name="eventDateTime" Type="DateTime" />
                <asp:Parameter Name="galleryAddress" Type="String" />
                <asp:Parameter Name="galleryURL" Type="String" />
                <asp:Parameter Name="galleryTel" Type="String" />
                <asp:Parameter Name="Notes" Type="String" />
            </UpdateParameters>
            <InsertParameters>
                <asp:Parameter Name="exhibitionTitle" Type="String" />
                <asp:Parameter Name="galleryName" Type="String" />
                <asp:Parameter Name="eventDateTime" Type="DateTime" />
                <asp:Parameter Name="galleryAddress" Type="String" />
                <asp:Parameter Name="galleryURL" Type="String" />
                <asp:Parameter Name="galleryTel" Type="String" />
                <asp:Parameter Name="Notes" Type="String" />
            </InsertParameters>
        </asp:SqlDataSource>

    </div>

</asp:Content>

[Princy]

Hello Stevied,

For two way databinding (using a datasource in which you want to update, insert, etc with declarative databinding), you'll need to use #Bind.

ASPX:

<telerik:GridTemplateColumn HeaderText="Exhibition Title" UniqueName="exhibitionTitle" >
   <EditItemTemplate>
      <asp:TextBox ID="txtExhibitionTitle" runat="server" Text='<%#Bind("exhibitionTitle")%>' />
   </EditItemTemplate>
   <ItemTemplate>
      <%#Eval("exhibitionTitle")%>
   </ItemTemplate>
</telerik:GridTemplateColumn>

Hope this helps,
Princy.

[stevied]

Thanks for that Princy, cant believe i missed it!