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Request a Feature Report a Bug
Completed
Last Updated: 28 Oct 2020 14:33 by ADMIN
Release 2020.R3.SP.next
NullReference after upgrading
Created by: Cyril Iselin
Comments: 2
Category: AutoComplete
Type: Bug Report
0
NullReference after upgrading

We are upgraded from MVC 5 to MVC-Core and using now your core components (latest version).

In our AutoComplete box, we get now a NullReference exception, without changing anything at our codebase.

 

Generated Script from Kendo MVC-Core:

kendo.syncReady(function(){jQuery("#txtSearchForLink").kendoAutoComplete({"select":insertLink.searchResultSelected,"dataTextField":"Text","filter":"Contains","footerTemplate":jQuery('#searchResultFooterTemplate').html(),"minLength":0,"placeholder":"Suchen","template":jQuery('#searchResultTemplate').html(),"dataSource":{"type":"aspnetmvc-ajax","transport":{"read":{"url":"/Orphy/Search/GetQuickSearchData","data":insertLink.onAdditionalData}},"serverFiltering":true,"serverGrouping":true,"sort":[{"field":"Weight","dir":"desc"}],"group":[{"field":"GroupName","dir":"desc"}],"filter":[],"schema":{"data":"Data","model":{"id":"Id"}}}});});

 

Debugging:

-> context.Count == 0 -> so Null will returned
-> Here you access the property Memeber of Null ... ?

Call Stack:

System.NullReferenceException: Object reference not set to an instance of an object.
   at Kendo.Mvc.Infrastructure.Implementation.FilterNodeVisitor.Visit(PropertyNode propertyNode)
   at Kendo.Mvc.Infrastructure.Implementation.PropertyNode.Accept(IFilterNodeVisitor visitor)
   at Kendo.Mvc.Infrastructure.FilterDescriptorFactory.Create(String input)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.<>c__DisplayClass2_0.<CreateDataSourceRequest>b__3(String filter)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.TryGetValue[T](ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName, String key, Action`1 action)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.CreateDataSourceRequest(ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.BindModelAsync(ModelBindingContext bindingContext)
   at Microsoft.AspNetCore.Mvc.ModelBinding.Binders.BinderTypeModelBinder.<BindModelAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder.<BindModelAsync>d__11.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerBinderDelegateProvider.<>c__DisplayClass0_0.<<CreateBinderDelegate>g__Bind|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextExceptionFilterAsync>d__24.MoveNext() System.NullReferenceException: Object reference not set to an instance of an object.
   at Kendo.Mvc.Infrastructure.Implementation.FilterNodeVisitor.Visit(PropertyNode propertyNode)
   at Kendo.Mvc.Infrastructure.Implementation.PropertyNode.Accept(IFilterNodeVisitor visitor)
   at Kendo.Mvc.Infrastructure.FilterDescriptorFactory.Create(String input)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.<>c__DisplayClass2_0.<CreateDataSourceRequest>b__3(String filter)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.TryGetValue[T](ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName, String key, Action`1 action)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.CreateDataSourceRequest(ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.BindModelAsync(ModelBindingContext bindingContext)
   at Microsoft.AspNetCore.Mvc.ModelBinding.Binders.BinderTypeModelBinder.<BindModelAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder.<BindModelAsync>d__11.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerBinderDelegateProvider.<>c__DisplayClass0_0.<<CreateBinderDelegate>g__Bind|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextExceptionFilterAsync>d__24.MoveNext()

 

Thanks for helping me.

 

Cyril

Completed
Last Updated: 10 Feb 2021 14:54 by ADMIN
Release 2021.R1.SP.next
MultiSelect tag helper's dataSource sets default "page" and "pageSize" values
Created by: Konrad
Comments: 0
Category: AutoComplete
Type: Bug Report
0
MultiSelect tag helper's dataSource sets default "page" and "pageSize" values

Bug report

The tag helper's dataSource sets the following values: "page"=1 and "pageSize"=20, even though "server-operation" and "server-paging" are disabled in its configuration.

Reproduction of the problem

MultiSelect configuration:

<kendo-multiselect name="multiselect1" style="width:100%"
				   placeholder="Enter name..."
				   datatextfield="ShipName"
				   datavaluefield="OrderID"
				   min-length="2"
				   enforce-min-length="true">
	<datasource type="DataSourceTagHelperType.Ajax" server-operation="false"
				server-paging="false"
				server-filtering="false"
				server-aggregates="false"
				server-grouping="false"
				server-sorting="false">
		<transport>
			<read url="@Url.Action("GetData","Home")" />
		</transport>
	</datasource>
	<popup-animation>
		<open duration="500" />
		<close duration="500" />
	</popup-animation>
</kendo-multiselect>

Action:

public ActionResult GetData([DataSourceRequest] DataSourceRequest request)
{
    var result = Enumerable.Range(0, 50).Select(i => new OrderViewModel
    {
        OrderID = i,
        Freight = i * 10,
        OrderDate = new DateTime(2016, 9, 15).AddDays(i % 7),
        ShipName = "ShipName " + i,
        ShipCity = "ShipCity " + i
    });

    var dsResult = result.ToDataSourceResult(request);
    return Json(dsResult);
}

Current behavior

The "page" and "pageSize" values are set, which results in only 20 items being displayed, even though more are returned by the "read" action.

Expected/desired behavior

The "page" and "pageSize" should not be set, and the MultiSelect should display all the data returned by the "read" action.

Environment

  • Kendo UI version: 2020.3.1118
  • jQuery version: x.y
  • Browser: [all]
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