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
Bug report
The Kendo UI Sortable for ASP.NET Core assumes that all selectors are by "id".
Reproduction of the problem
1. Set the .For() option of the Sortable widget to a class selector:
@(Html.Kendo().Sortable()
.For(".k-grid table")
// . . .
)2. Inspect the page source.
3. The following string is rendered:
<script>
kendo.syncReady(function () { jQuery("\\.k-grid table").kendoSortable(// options) });
</script>
Expected/desired behavior
The Sortable widget should allow for passing any jQuery selectors.
Environment
* **Kendo UI version:** 2019.3.1023
* **jQuery version:** 1.12.4
* **Browser:** [all]
Bug report
The server filtering is not working for MultiColumnComboBox defined using a tag helper.
Reason: The initialization script returns:
..... kendo.ui.ComboBox.requestData(.....
instead of
..... kendo.ui.MultiColumnComboBox.requestData(.....
Reproduction of the problem
For reproduction details please refer to ticket: #1435798
Current behavior
The server filtering is not working and the server returns all items from the DataSource.
Expected/desired behavior
The server should filter the response based on the data coming from the view.
Environment
- Kendo UI version: 2019.3.1023
- jQuery version: x.y
- Browser: [all]
Hello,
When I try to create a Telerik UI project for .NET Core 3.0 using menu and grid options the project gets created and runs correctly, however when I try to add a new view or controller there appears to be an issue with the scaffolding (even when creating a partial view) and the creation fails.
Note: I was able to get the project to sort of work only when I added a bunch of libraries it was complaining about (see attached), however the views do not update when I make changes except only when rebuilding which does not seem correct.
Hi!
We're using a drop down list as a grid cell's edit template, but.. our users are unable to properly edit the rows at the bottom of the grid due to drop down list going off the page, and closing when they attempt to scroll.
any ideas?
When a model property is decorated with data annotation attributes, the RadioButton HtmlHelper does not properly render the data-val and data-val-required attributes on the element.
Expected behavior: Data attributes should be successfully rendered on the <input> element.
Using .Net Core 3.0
ToDataSourceResult raises an exception if the DataSourceRequest has Aggregates
the exception says that there is no constructor with the following signature:
Void Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions(
Microsoft.CodeAnalysis.OutputKind,
Boolean,
String,
String,
String,
Collections.Generic.IEnumerable`1<String>,
Microsoft.CodeAnalysis.OptimizationLevel,
Boolean,
Boolean,
String,
String,
Collections.Immutable.ImmutableArray`1<Byte>,
Nullable`1<Boolean>,
Microsoft.CodeAnalysis.Platform,
Microsoft.CodeAnalysis.ReportDiagnostic,
Int32,
IEnumerable<KeyValuePair<String,Microsoft.CodeAnalysis.ReportDiagnostic>>,
Boolean,
Boolean,
Microsoft.CodeAnalysis.XmlReferenceResolver,
Microsoft.CodeAnalysis.SourceReferenceResolver,
Microsoft.CodeAnalysis.MetadataReferenceResolver,
Microsoft.CodeAnalysis.AssemblyIdentityComparer,
Microsoft.CodeAnalysis.StrongNameProvider,
Boolean,
Microsoft.CodeAnalysis.MetadataImportOptions,
Microsoft.CodeAnalysis.CSharp.NullableContextOptions
)
I traced the error down to the method that causes it :
CSharpCompilation CreateCompilation(SyntaxTree syntaxTree)
Bug report
When visible attribute is set to false for a panelbar-item, the item remains visible when the widget is rendered.
Reproduction of the problem
<kendo-panelbar name="project">
<items>
<panelbar-item text="Storage" expanded="true">
<items>
<panelbar-item visible="false" text="Kids Storage" ></panelbar-item>
</items>
</panelbar-item>
</items>
</kendo-panelbar>Current behavior
Adding visible attribute to panelbar-item does not change its visibility.
Expected/desired behavior
Adding visible attribute to panelbar-item should change item visibility.
Environment
- Kendo UI version: 2019.2.619
- Browser: [all]
There is an issue when you copy /paste a bullet list from a Microsoft word document.
- The numbers are not correct (See attached screenshot)
- If you started a new line you don't get a new number for that hierarchical level. Instead, you just get a new line.
Bug report
In Core when the ComboBoxFor helper is used as an editor in a Grid (Shared/EditorTemplates) and its Name is set, the Grid does not render and no exception is displayed, to indicate that the Name option should not be set.
Reproduction of the problem
Reproducible in the Editing custom editor Grid demo.
- Set the ComboBox' Name in the ClientCategory.cshtml template
@(Html.Kendo().ComboBoxFor(m => m)
.Name("CategoryID")
.DataValueField("CategoryID")
.DataTextField("CategoryName")
.BindTo((System.Collections.IEnumerable)ViewData["categories"])
)
Current behavior
We throw an exception when the Name is set (e.g. if the ComboBox is used outside of a Grid), but in this scenario it is not displayed.
Expected/desired behavior
An exception is thrown and its message is displayed.
Environment
- Kendo UI version: 2019.2.619
- jQuery version: x.y
- Browser: [all]
Bug report
The data attributes are not rendered for the DropDownlist when bound to Model in Razor Pages.
Reproduction of the problem
View:
@page
@model TelerikAspNetCoreApp12.Pages.IndexModel
<form>
@(Html.Kendo().DropDownList()
.Name("fabric")
.OptionLabel("Select...")
.DataTextField("Text")
.DataValueField("Value")
.BindTo(Model.Data)
.Filter("contains")
)
<input type="submit" />
</form>
Back end:
namespace TelerikAspNetCoreApp12.Pages
{
public class IndexModel : Microsoft.AspNetCore.Mvc.RazorPages.PageModel
{
public List<TestModel> Data { get; set; } = new List<TestModel>();
public void OnGet()
{
for (int i = 1; i <= 100; i++)
{
Data.Add(new TestModel() { Text = "product" + i, Value = i.ToString() });
}
}
}
}
Model:
namespace TelerikAspNetCoreApp12.Models
{
public class TestModel
{
[Required(ErrorMessage = "Please select")]
public string Text { get; set; }
public string Value { get; set; }
}
}
Inspect the input field for the DropDownList. It does not have data-val and data-val-required attributes.
Current behavior
The data attributes are not being rendered.
Expected/desired behavior
The data attributes should be rendered.
Environment
- Kendo UI version: 2019.2.619
- jQuery version: x.y
- Browser: [all]
IgnoreCase property is missing for the filterable options of the column:
https://docs.telerik.com/aspnet-core/api/Kendo.Mvc.UI.Fluent/GridBoundColumnFilterableBuilder
The option is documented in:
https://docs.telerik.com/kendo-ui/api/javascript/ui/grid/configuration/columns.filterable.ignorecase
Trying to attach an event to the Core Sparkline wrapper like this:
@(Html.Kendo().Sparkline().Name("temp-log")
.Type(SparklineType.Column)
.Data(new double[] {
16, 17, 18, 19, 20, 21, 21, 22, 23, 22
})
.Events(e=>e.SeriesClick("onSeriesClick"))
)
leads to a compilation error:
Error CS0121 The call is ambiguous between the following methods or properties: 'SparklineBuilder<T>.Events(Action<ChartEventBuilder>)' and 'SparklineBuilder<T>.Events(Action<SparklineEventBuilder>)'
Dears,
While browsing the new components of UI for Asp Core, I found an Issue in the provided online sample (https://demos.telerik.com/aspnet-core/ripplecontainer/index)
After transferring and moving items between the lists of "RIPPLE ON LIST ITEMS", the list display the raw HTML of the items. So, I provided a screen record reproducing the issue (https://pasteboard.co/I7Fx0AW.gif).
The Menu TagHelper does not render correct links for its items when the asp-page attribute is used.
With area it does not render a link at all:
<menu-item text="Home" asp-area="Products" asp-controller="Home" asp-action="About"></menu-item>
Without area it renders an incorrect link
<menu-item text="Login" asp-area="Products" asp-page="/Books"></menu-item>
Hello good afternoon all right?
I am developing a code where I create a base model of a window and use javascript to be able to define data like autura, width, content (URL) and etc ...
In the example I am doing, I have a menu that according to the ID of the item that I clicked on the menu, it performs a function and according to the ID, it defines the data of the Window, as I do not have a component like "RadWindowManager" to facilitate this part of the creation, I am doing this process:
Component Code:
<nav class="navbar navbar-expand-xl navbar-light bg-light">
<a class="navbar-brand" href="#">
<div> <img src="~/images/selo.png" class="pull-left imagem" /> </div>
</a>
<a class="navbar-brand" href="#">
<img src="~/images/softlux.png" class="logo_posicao" alt="">
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarText">
<ul class="navbar-nav mr-auto">
<li class="dropdown nav-text">
<a href="#" class="nav-link dropdown-toggle" id="navbarDropdownMenu" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" onclick="aoClicar('3,0')">
Example Window 1
</a>
</li>
<li class="dropdown nav-text">
<a href="#" class="nav-link dropdown-toggle" id="navbarDropdownMenu" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" onclick="aoClicar('6,0')">
Example Window 2
</a>
</li>
<li class="dropdown nav-text">
<a href="#" class="nav-link dropdown-toggle" id="navbarDropdownMenu" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" onclick="aoClicar('12,0')">
Example Window 3
</a>
</li>
</ul>
</div>
</nav>
@(Html.Kendo().Window()
.Name("FrmGrid")
.Resizable()
.Draggable()
.Content("Loading...")
.Visible(false)
.Modal(false)
)Scripts Code:
<script type="text/javascript">
function aoClicar(idItem) {
switch (idItem) {
case "3,0":
var janela = $("#FrmGrid").kendoWindow().data("kendoWindow");
janela.setOptions({
title: "Table of Environments",
width: 980,
height: 440
});
janela.refresh({
url: 'http://' + window.location.hostname + ':' + window.location.port + '/Ambiente/Index' // Open a Controller and Action as Frame
});
janela.center().open();
break;
case "6,0":
var janela = $("#FrmGrid").kendoWindow().data("kendoWindow");
janela.setOptions({
title: "Table of Professions",
width: 980,
height: 400
});
janela.refresh({
url: 'http://' + window.location.hostname + ':' + window.location.port + '/Profissao/Index' // Open a Controller and Action as Frame
});
janela.center().open();
break;
case "12,0":
var janela = $("#FrmGrid").kendoWindow().data("kendoWindow");
janela.setOptions({
title: "Table of reasons",
width: 980,
height: 560
});
janela.refresh({
url: 'http://' + window.location.hostname + ':' + window.location.port + '/Motivo/Index' // Open a Controller and Action as Frame
});
janela.center().open();
break;
default:
alertify.error('Window not disponible.');
}
}
</script>
However, I noticed 2 problems in Defining Options such as height, width, title, and content
If I use this method to define:
janela.setOptions({
title: "Table of reasons",
width: 980,
height: 560
});The final result of the window looks like this:
Note that the Content Frame is passing outside the window border, or in case the background shadow of it, in other browsers the size may even follow the pattern of the shadow, but in Google Chrome you get this part beyond the limit.
If I use this method to set the properties:
var janela = $("#FrmGrid").kendoWindow({
title: "Table of reasons",
width: 980,
height: 560
}).data("kendoWindow");When you create the first window, you create it without problems:
However, if I close and try to open another menu item, properties such as Height, Width, and Title are not updated, see:
As much as I have defined the patterns before opening the window, the only thing that was changed in the window was the URL / Content
I hope you have understood what you want to report, do not forget the texts in the grid or the buttons are not in English, this project I am developing in my native language (In the case of Brazilian Portuguese)
Anyway thank you for your attention and I await your response.
Have a nice day
Hi Kendo Team,
I am working on Kendo UI ASP.NET Core Grid binding with SignalR. But while starting Hub and providing the Promise, I am facing an error "The "promise" option must be a Promise."
I am following this URL for reference: https://demos.telerik.com/aspnet-core/grid/signalr .
Checked on your website as well, but the issue is also coming there. Here is the URL: https://docs.telerik.com/kendo-ui/api/javascript/data/datasource/configuration/transport.signalr
In this link, when clicking on "Open In Dojo" button, it opens a new window, then clicks on the Run button. It will generate an error in the console "Uncaught Error: The "promise" option must be a Promise.".
Please check the attached snapshot.
Please reply asap. Thanks in advance!
When certain options of the editable Window are set through configuration, they are not being serialized correctly:
MinWidth
MinHeight
Events (Open, Close, etc.)
.Editable(e => e.Window(w =>
w.MinHeight(1000)
.MinWidth(1000)
.Events(we => we.Open('onOpen'))))
)
Hi Team
With the latest version of Kendo (Silver Theme), The selected color of a Panelbar was white now it's blackish.
Do you have a quick fix for that?
Many thanks
Giuseppe
@page@model IndexModel@{ ViewData["Title"] = "Home page";}<form class="form-horizontal" method="post"> <h4>Standard textbox:</h4> @Html.TextBoxFor(m => m.Candidate.CandidateId) <h4>Kendo textbox:</h4> @Html.Kendo().TextBoxFor(model => model.Candidate.FirstName) <div class="form-group"> <div> <button type="submit" class="btn btn-default">Submit</button> </div> </div></form>Back end:
public class IndexModel : PageModel{ [BindProperty] public CandidateViewModel Candidate { get; set; } public void OnGet() { } public void OnPost() { ViewData["firstname"] = $"{Candidate.FirstName}"; ViewData["candidateid"] = $"{Candidate.CandidateId}"; }}Model:
public class CandidateViewModel{ [Key] [Display(Name = "Candidate ID")] public int CandidateId { get; set; } [Required] [Display(Name = "First Name")] public string FirstName { get; set; }}Inspect the TextBox and Kendo TextBox helpers in the browser. The latter does not render data-val and data-val-required attributes.