Self referencing RadGrid's GridTemplateColumn displays values twice if it has both UniqueName attribute and ItemTemplate tag

[Sridhar]

Hi,
I have a RadGrid which has NestedHierarchy set up. I also have edit functionality associated to grid rows.

<Columns>
    <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn" EditText="Rename Favourite" HeaderStyle-Width="15px">
        <ItemStyle CssClass="edit-grid-controls" />
    </telerik:GridEditCommandColumn>
    <telerik:GridTemplateColumn HeaderText="Name" UniqueName="Name">
        <ItemTemplate> <%# Eval("Name") %> </ItemTemplate>
        <EditItemTemplate><asp:TextBox ID="txtFavouriteName" runat="server" Text='<%# Eval("Name") %>' Width="100%" MaxLength="256" />
        </EditItemTemplate>
    </telerik:GridTemplateColumn>
    ... more columns ...
</Columns>

1. Since the time this grid was converted to a nested self referencing hierarchy table, the Name is displayed twice!
2. If I remove UniqueName attribute, the data wont show up.
3. If I remove ItemTemplate, things are fine until I attempt for an edit thru "GridEditCommandColumn".
4. Please have a look at the attached images. Image ending with right is for "normal" radgrid. Image ending with "wrong" is for nested hierarchy grid. When in edit mode, I don't want to display values twice.

[Andrey]

Hi,

In order to give you a resolution for the problem I will need more information about your setup, like the declaration of RadGrid along with the respective event handlers.

Regards,
Andrey
the Telerik team

[Sridhar]

Hi,
Sorry for the delay. Here's my code.
"UniqueName" attribute is whats causing the trouble, but looks like that's inevitable.

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false" AllowPaging="false" AllowMultiRowSelection="true"
                OnUpdateCommand="RadGrid1_UpdateCommand" OnItemDataBound="RadGrid1_ItemDataBound" OnDataBinding="RadGrid1_DataBinding"
                OnRowDrop="RadGrid1_RowDrop" OnNeedDataSource="RadGrid1_NeedDataSource" Visible="false"
                OnColumnCreated="RadGrid1_ColumnCreated" OnItemCreated="RadGrid1_ItemCreated" EnableLinqExpressions="false">
                <ClientSettings AllowRowsDragDrop="true" AllowDragToGroup="false" AllowExpandCollapse="true">
                    <Selecting AllowRowSelect="true" />
                    <ClientEvents OnRowDropping="onRowDropping" OnRowDragStarted="onRowDragStarted" OnRowContextMenu="RowContextMenu" />
                </ClientSettings>
                <MasterTableView ClientDataKeyNames="TrackingNumber" DataKeyNames="TrackingNumber, Name, OrderId, MasterOrderId, IsMaster" EditMode="InPlace"
                 HierarchyDefaultExpanded="false" HierarchyLoadMode="Client">
                    <SelfHierarchySettings ParentKeyName="MasterOrderId" KeyName="OrderId" MaximumDepth="1" />
                    <Columns>
                        <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn" EditText="Rename Order" HeaderStyle-Width="15px">
                            <ItemStyle CssClass="edit-grid-controls" />
                        </telerik:GridEditCommandColumn>
                        <telerik:GridTemplateColumn HeaderText="Name" UniqueName="Name">
                            <EditItemTemplate><asp:TextBox ID="txtOrderName" runat="server" Text='<%# Eval("Name") %>' Width="100%" MaxLength="256" /></EditItemTemplate>
                        </telerik:GridTemplateColumn>
                        <telerik:GridTemplateColumn HeaderText="Pax" HeaderStyle-Width="30px" HeaderStyle-HorizontalAlign="Right" ItemStyle-HorizontalAlign="Right">
                            <ItemTemplate><asp:Literal ID="litPax" runat="server" Text="-" /></ItemTemplate>
                        </telerik:GridTemplateColumn>
                        <telerik:GridTemplateColumn HeaderText="Provider Total" HeaderStyle-Width="100px" HeaderStyle-HorizontalAlign="Right" ItemStyle-HorizontalAlign="Right">
                            <ItemTemplate><asp:Literal ID="litLocalTotal" runat="server" Text="-" /></ItemTemplate>
                        </telerik:GridTemplateColumn>
                        <telerik:GridTemplateColumn HeaderText="Customer Total" HeaderStyle-Width="100px" HeaderStyle-HorizontalAlign="Right" ItemStyle-HorizontalAlign="Right">
                            <ItemTemplate><asp:Literal ID="litCustomerTotal" runat="server" Text="-" /></ItemTemplate>
                        </telerik:GridTemplateColumn>
                        <telerik:GridTemplateColumn HeaderText="Price Per Pax" HeaderStyle-Width="100px" HeaderStyle-HorizontalAlign="Right" ItemStyle-HorizontalAlign="Right">
                            <ItemTemplate><asp:Literal ID="litPricePerPax" runat="server" Text="-" /></ItemTemplate>
                        </telerik:GridTemplateColumn>
                        <telerik:GridTemplateColumn HeaderStyle-Width="62px" ItemStyle-HorizontalAlign="Left">
                            <ItemTemplate>
                                <asp:HyperLink ID="lnkEdit" Text="Edit" runat="server" NavigateUrl='<%# string.Format("{0}?{1}={2}&{3}={4}", PageConstants.OrderEdit, SiteConstants.BasketIdQueryStringKey, Eval("OrderId"), SiteConstants.SoldToIdQueryStringKey, Eval("SoldToId")) %>' />
                                <asp:ImageButton ID="imgPrint" runat="server" ToolTip="Print" OnCommand="Order_Command" CommandName="Print" CommandArgument='<%#Eval("SoldToId") + "," + Eval("TrackingNumber")%>' ImageUrl="~/SiteImages/PRINT.gif" CausesValidation="false" />
                            </ItemTemplate>
                        </telerik:GridTemplateColumn>
                    </Columns>
                    <NoRecordsTemplate>
                        <div>There are no orders in this category.</div>
                    </NoRecordsTemplate>
                </MasterTableView>
        </telerik:RadGrid>

Let me know if you need more details.

Thanks
Reddy

[Andrey]

Hello,

I am afraid that Editing feature is not supported when SelfHierarchy structure is used. For such cases we recommend to use RadTreeList which is specifically designed for self -related  data.

All the best,
Andrey
the Telerik team