[Solved] User Control updating from the RadGrid

[Josh]

Hi Support,

I am using a RadGrid with a user control edit form built in.  The RadGrid is ajaxified. 
The problem is when I cancel the insert event with e.Canceled = true the user control is refreshed to its initial settings minus the defaults.  Thus, wiping out the values selected in the dropdown items.  Not only this, but I noticed on a different form with a similar set up that the controls that were programmatically hidden in the user control are shown after the insert event! 

The behavior I would like to see is for the dropdowns to remain populated as they were before the insert is attempted.  The problem is I cannot allow the insert to go forward and must display validation. the validation that I have set up on the insert event indicates that the user has not properly filled in all the fields I set e.canceled = true to stop the grid from going out of edit mode.  Yet, if i attempt to rebind the control the user control refreshes in a way that loses all the data. 

I am pretty perplexed about this issue and don't know what to do to resolve it.  Let me know if there is any other information I can give to help.

Thanks for your help.  See code snippets below. 

Here is my RadGrid definition:

        <asp:Panel ID="pnlRadGrid" runat="server" style="table-layout:fixed" >
        <telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="False" PageSize="8"
                AllowSorting="True" AllowPaging="True" AllowMultiRowSelection="False"
                OnNeedDataSource="RadGrid1_NeedDataSource"
                OnItemCommand="RadGrid1_ItemCommand"
                OnInsertCommand="RadGrid1_InsertCommand"
                OnUpdateCommand="RadGrid1_UpdateCommand"
                OnItemCreated="RadGrid1_ItemCreated"
                >
                <PagerStyle Mode="NextPrevNumericAndAdvanced" HorizontalAlign="Center" />
                <MasterTableView EnableTheming="false" InsertItemPageIndexAction="ShowItemOnCurrentPage" InsertItemDisplay="Bottom" DataKeyNames="ProcessingSystemResponseKey" Width="100%" GridLines="None" AllowMultiColumnSorting="True"
                      CommandItemDisplay="Bottom" TableLayout="Auto" ShowHeadersWhenNoRecords="true">
                    <Columns>
                        <telerik:GridTemplateColumn>
                            <ItemTemplate>
                                <asp:Button runat="server" CommandName="Edit" CssClass="rgEdit" ToolTip="Edit" />
                            </ItemTemplate>
                        </telerik:GridTemplateColumn>
                        <telerik:GridTemplateColumn
                           DataField="ProcessingSystemResponseKey"
                           HeaderText="Key"
                           SortExpression="ProcessingSystemResponseKey"
                           UniqueName="ProcessingSystemResponseKey">
                         <ItemTemplate>
                           <a href="javascript: void(0)"
                              onclick="window.open('<%# GetHelpFileUrl(Eval("HelpTopicFile")) %>'); return false;">
                           <%# Eval("ProcessingSystemResponseKey")%>
                           </a>
                        </ItemTemplate>
                        </telerik:GridTemplateColumn>
                        <telerik:GridBoundColumn UniqueName="InpatientResultKindDesc" SortExpression="InpatientResultKindDesc" HeaderText="Inpatient Result"
                            DataField="InpatientResultKindDesc">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn UniqueName="OutPatientResultKindDesc" SortExpression="OutPatientResultKindDesc" HeaderText="Outpatient Result"
                            DataField="OutPatientResultKindDesc">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn UniqueName="Description" SortExpression="Description"
                            HeaderText="Description" DataField="Description">
                        </telerik:GridBoundColumn>
                        <telerik:GridCheckBoxColumn UniqueName="OverrideFlag" SortExpression="OverrideFlag"
                            HeaderText="Allow MASTRR™ Agency To Change" DataField="OverrideFlag">
                        </telerik:GridCheckBoxColumn>
                    </Columns>
                    <EditFormSettings UserControlName="../AdminUC/ManageAdjudicationErrorsUC.ascx" EditFormType="WebUserControl">
                     </EditFormSettings>
                <CommandItemSettings AddNewRecordText=""
                                     RefreshText="" />
                </MasterTableView>
                <ClientSettings AllowKeyboardNavigation="True">
                    <Selecting AllowRowSelect="False" />
                </ClientSettings>

        </telerik:RadGrid>

Here is my Insert Command Eventbelow:

    /// <summary>
    /// The insert event.  Occurs when user clicks the insert button on the insert form.
    /// </summary>
    /// <param name="source"></param>
    /// <param name="e"></param>
    protected void RadGrid1_InsertCommand(object source, GridCommandEventArgs e)
    {
        // Obtain the usercontrol from the grid's property
        UserControl uc = (UserControl)e.Item.FindControl(GridEditFormItem.EditFormUserControlID);

        // Create object to store and validate
        AdjudicationErrors adjudicationErrors = new AdjudicationErrors();

        // Obtain array to iterate through to determine if inserted primary key is unique.
        String [] gridKeys = e.Item.OwnerTableView.DataKeyNames;

        // Validate and Assign values
        if (CheckSetProperFields(uc, adjudicationErrors, gridKeys))
        {
            try
            {
                // Insert the database record
                Boolean success = AdjudicationErrors.SaveAdjudicationErrors(adjudicationErrors);
            }
            catch (Exception)
            {
                e.Canceled = true;
                throw;
            }

        }
        else
        {
            e.Canceled = true;

            // Because of the combos the user control doesn't obtain the dropdowns unless the item is
            // re-obtained
            GridEditableItem insertedItem = e.Item.OwnerTableView.GetInsertItem();

            //Format the grid's insert form
            SetInsertProperties(insertedItem);
            insertedItem.OwnerTableView.Rebind();

        }

Josh

[Mira]

Hi Josh,

I suggest that you take a look at the Flexible Server-side Validation demo showing how to validate RadGrid. Another option to validate without losing the data and rebinding is performing client-side validation (using javascript).

Please give these suggestions a try and tell me how it goes.

Regards,
Mira
the Telerik team

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