Hello guys,

I get the following error:

Async request failed

 

[ArgumentException]: Object of type 'System.DBNull' cannot be converted to type 'System.String'.

   at System.ComponentModel.ReflectPropertyDescriptor.SetValue(Object component, Object value)

   at Infragistics.Web.UI.Framework.Data.DataSourceControlAdapter.<>c__DisplayClass1.<Update>b__0(Int32 affectedRecords, Exception exception)

   at System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback)

   at Infragistics.Web.UI.Framework.Data.DataSourceControlAdapter.Update(Object dataItem, IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback)

   at Infragistics.Web.UI.Framework.Data.DataSourceObjectView.Update(Object dataItem, IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback)

   at Infragistics.Web.UI.GridControls.EditingCore.OnAction(String actionType, Object id, Object value, Object tag)

   at Infragistics.Web.UI.GridControls.GridBehavior.Infragistics.Web.UI.GridControls.IGridBehavior.OnAction(String actionType, Object id, Object value, Object tag)

   at Infragistics.Web.UI.GridControls.GridBot.LoadAdditionalClientState(Object state)

   at Infragistics.Web.UI.Framework.RunBot.HandleRaisePostDataChangedEvent()

   at Infragistics.Web.UI.GridControls.GridBot.HandleRaisePostDataChangedEvent()

   at Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.RaisePostDataChangedEvent()

   at System.Web.UI.Page.RaiseChangedEvents()

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[HttpUnhandledException]: Exception of type &#39;System.Web.HttpUnhandledException&#39; was thrown.

   at System.Web.UI.Page.HandleError(Exception e)

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest()

   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)

   at System.Web.UI.Page.ProcessRequest(HttpContext context)

   at ASP.lvy_receipt_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\8c245307\29da0fe5\App_Web_gz034ful.1.cs:line 0

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

The editingcore is looking like this:

                        <Behaviors>
                            <ig:RowEditingTemplate CancelButton="btnCancelTicket" OKButton="btnSaveTicket">
                                <EditModeActions MouseClick="None" />
                                <RowEditingClientEvents TemplateClosing="GridRowExitEditMode" />
                                <ClientBindings>
                                    <ig:RowEditingClientBinding ColumnKey="TICKET_CATEGORY" ControlID="txtEditTicketCategory"
                                        GetValueJavaScript="$find({ClientID}).get_value()" SetValueJavaScript="$find({ClientID}).set_value({value})" />
                                    <ig:RowEditingClientBinding ColumnKey="LiableCountryCurrency" ControlID="lblEditTicketCurrency"
                                        SetValueJavaScript="$get({ClientID}).innerHTML ={value}"
                                        />
                                    <ig:RowEditingClientBinding ColumnKey="TICKET_COUNT" ControlID="txtEditTicketCount"
                                        GetValueJavaScript="$find({ClientID}).get_value()" SetValueJavaScript="$find({ClientID}).set_value({value})" />
                                    <ig:RowEditingClientBinding ColumnKey="TICKET_PRICE" ControlID="txtEditPriceOfTicket"
                                        GetValueJavaScript="$find({ClientID}).get_value()" SetValueJavaScript="$find({ClientID}).set_value({value})" />
                                </ClientBindings>

So when I enter the edit mode, edit the textboxes and then save, everything is fine.

But as soon as I enter the same row the second time, then edit data, then save, the error appears.

Is there anything I can check or debug to get a hint, where the error appears?

Thanks in advance!

Matthias