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1 answer
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Currently changing projects over to core and the wrapper for context menus appears to be behaving differently:-

We initially add menu items disabled and then enable them as required in JS  functions once the applicability of the menu items has been determined.

e.g.

.Items(items =>
{
   items.Add().Text("Complete")
              .HtmlAttributes(new { id = "CompleteID", title = "Complete" })
              .Enabled(false);
}


function EnableMenu(canComplete)
{
   var menu = $("#@Model.HtmlID").data("kendoContextMenu");

   menu.enable("#CompleteID", canComplete);
}

This code works fine in the 2020 version of Kendo UI for ASP.NET MVC but not in the ASP.NET Core product.

The work around appears to be just to remove the .Enable(false) when creating the menu items and then the programmatic enabling/disabling works fine.

I couldn't see any documentation that indicated a change in behaviour so wanted to know if this an intentional change or a possible bug?

 

Aleksandar
Telerik team
 answered on 29 Jun 2022
2 answers
16 views

When using the Boolean editor template with the grid HtmlHelper a label is created in the cell next to the checkbox. This was not always the case. Older versions of kendo excluded the label and only rendered the checkbox. Is there a way to turn off the label and only render the checkbox?

 vs 


Daniel
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 answered on 28 Jun 2022
0 answers
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Just got the Trial version this morning and when I added services.AddKendo() to configureservices I get the following error:

System.AggregateException: 'Some services are not able to be constructed 
  (Error while validating the service descriptor 'ServiceType: Kendo.Mvc.Rendering.IKendoHtmlGenerator 
   Lifetime: Transient ImplementationType: Kendo.Mvc.Rendering.KendoHtmlGenerator': 
             Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' 
   from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.)'

InvalidOperationException: Error while validating the service descriptor 'ServiceType: Kendo.Mvc.Rendering.IKendoHtmlGenerator 
Lifetime: Transient ImplementationType: Kendo.Mvc.Rendering.KendoHtmlGenerator': 
          Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' 
from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.

 

I have MSDE 2019 Community and my solution/project is set up as an ASP.Net Core 3.1 MVC application

Alan
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 asked on 23 Jun 2022
1 answer
18 views

I am using Telerik UI for ASP.NET Core

I have a hierarchical grid with nested child grids where the name is based off the parent grid record ("#gridValue_#=CODE_TABLE_ID#"). Is there an example where only the nested grids are drag and drop sortable and only within the same nested grid? I am not trying to move rows between different nested grids.

Thanks in advance

Mihaela
Telerik team
 answered on 23 Jun 2022
1 answer
10 views

Hi,

I have a dropdown list (ASP.NET Core v2021.2.511) that I have enabled filtering on using a contains filter. The list is bound but contains only a small number of rows, therefore Server filtering seemed to be overkill.

What is happening is this:

GLCode: H120

Description: Tuition Direct - Running Expenses

Templated text: Tuition Direct - Running Expenses (H120)

Search Text Examples:

  • H120 - no results found
  • tuit - item found

From this is appears that with client filtering that only the text in the DataTextField and not the result of the templated value is searched.

Is this by design or is it a bug ?

Shared View Code:

@model GeneralLedgerAccounts

@(Html.Kendo().DropDownListFor(m => m)
            .DataValueField("GLCode")
            .DataTextField("Description")
            .OptionLabel("Choose a GL Code ...")
            .Filter(FilterType.Contains)
            .BindTo((System.Collections.IEnumerable)ViewData["BudgetGLCodes"])
            .Template("#: data.Description # (#: data.GLCode #)")
)

Many Thanks

Chris

Alexander
Telerik team
 answered on 22 Jun 2022
1 answer
19 views

I have a user requirement to plot a chart as shown in the attached image (VerticalLine.JPG).

@(Html.Kendo().Chart<MyProject.WebAPI.MyChart.MyModel()>()
                    .Name("statistics")
                    .Title("User Interaction (Days)")
                    .Legend(legend => legend
                    .Position(ChartLegendPosition.Top)
                    )
                    .DataSource(ds => ds.Read(read => read.Url("/api/GetUserStats").Type(HttpVerbs.Get)))
                    .Series(series =>
                    {
                        series.Column(model => model.UserCount).Name("Total").Gap(.2).Color("#4169e1");
                    })
                    .CategoryAxis(axis => axis
                        .Categories(a => a.UserScore)
                        .Title("Days")
                    )
                    .ValueAxis(axis => axis.Numeric()
                        .Labels(labels => labels.Format("{0:N0}"))
                        .MajorUnit(1)
                    )
                    .AxisDefaults(a => a
                        .Labels(l => l.Font("12px Verdana"))
                    )
                    .Tooltip(tooltip => tooltip
                    .Visible(true)
                    .Shared(true)
                    .Format("{0:N0}")
                    )
                    .Zoomable(zoomable => zoomable
                    .Mousewheel(mousewheel => mousewheel.Lock(ChartAxisLock.Y))
                    .Selection(selection => selection.Lock(ChartAxisLock.Y))
                    )
                    )

 

namespace MyProject.WebAPI.MyChart
{
    public class MyModel
    {       
        public int UserCount { get; set; }

        public int UserScore { get; set; }

        public int UserGoal { get; set; }
    }
}

ResponseFromWebApi GetUserStats:

[{"UserCount":33,"UserScore":0,"UserGoal":7},{"UserCount":46,"UserScore":1,"UserGoal":7},
{"UserCount":46,"UserScore":2,"UserGoal":7},{"UserCount":32,"UserScore":3,"UserGoal":7},{"UserCount":29,"UserScore":4,"UserGoal":7},{"UserCount":40,"UserScore":5,"UserGoal":7},{"UserCount":45,"UserScore":6,"UserGoal":7},{"UserCount":54,"UserScore":7,"UserGoal":7},{"UserCount":42,"UserScore":8,"UserGoal":7},{"UserCount":31,"UserScore":9,"UserGoal":7},{"UserCount":22,"UserScore":10,"UserGoal":7},{"UserCount":29,"UserScore":11,"UserGoal":7},{"UserCount":25,"UserScore":12,"UserGoal":7},{"UserCount":35,"UserScore":13,"UserGoal":7},{"UserCount":42,"UserScore":14,"UserGoal":7},{"UserCount":28,"UserScore":15,"UserGoal":7},{"UserCount":13,"UserScore":16,"UserGoal":7},{"UserCount":12,"UserScore":17,"UserGoal":7},{"UserCount":10,"UserScore":18,"UserGoal":7},{"UserCount":16,"UserScore":19,"UserGoal":7},{"UserCount":23,"UserScore":20,"UserGoal":7},{"UserCount":24,"UserScore":21,"UserGoal":7},{"UserCount":20,"UserScore":22,"UserGoal":7},{"UserCount":12,"UserScore":23,"UserGoal":7},{"UserCount":17,"UserScore":24,"UserGoal":7},{"UserCount":4,"UserScore":25,"UserGoal":7},{"UserCount":14,"UserScore":26,"UserGoal":7},{"UserCount":5,"UserScore":27,"UserGoal":7},{"UserCount":20,"UserScore":28,"UserGoal":7},{"UserCount":16,"UserScore":29,"UserGoal":7},{"UserCount":16,"UserScore":30,"UserGoal":7},{"UserCount":3,"UserScore":31,"UserGoal":7},{"UserCount":7,"UserScore":32,"UserGoal":7},{"UserCount":10,"UserScore":33,"UserGoal":7},{"UserCount":5,"UserScore":34,"UserGoal":7},{"UserCount":14,"UserScore":35,"UserGoal":7},{"UserCount":9,"UserScore":36,"UserGoal":7},{"UserCount":4,"UserScore":37,"UserGoal":7},{"UserCount":3,"UserScore":39,"UserGoal":7},{"UserCount":7,"UserScore":40,"UserGoal":7}]

 

The vertical line should be plotted at the value of UserGoal which always will be the same number for all rows, like 7 in above exampe. I tried using PlotBand with hardcoded value (just for testing) but it doesn't plot at value 7. It probably plots at 7th position. If I use Vertical Chart, it plots from position 0 to 7, a diagonal line.

I can get the value of UserGoal via JQuery instead of getting through WebApi but how can I draw the vertical line on existing graph ?

  
Aleksandar
Telerik team
 answered on 22 Jun 2022
1 answer
20 views

Hi,

Is it possible to set the height of the combobox dropdown in JavaScript.

I can set it in the taghelper but I have the combobox beside another element on the page and I want to match the heights.

It seems to be that I should be able to set it in the open event for the combobox but I can't seem to get it to work.

Is there a property on the Combobox that I should change?

Changing the height on the data-role div seems to get overwritten.

Any suggestions?

Thanks,

Charlotte

 

Aleksandar
Telerik team
 answered on 21 Jun 2022
1 answer
21 views

Hello,

I am stuck behind a corporate network that does not allow me to connect to the telerik nuget feed. How can I install without NuGet? I looked at the MSI installer instructions but it seemed like that installed a nuget package file to use nuget for the install as well. We just need to be able to download the necessary files and add them as references in our project. Not sure which files need to be included etc.

Thanks in advance!

Aleksandar
Telerik team
 answered on 21 Jun 2022
1 answer
32 views

Boa tarde.

Eu instalei a versão mais recente do KendoUICore para .netcore 3.1, e continua a dar este erro:

System.AggregateException
  HResult=0x80131500
  Message=Some services are not able to be constructed (Error while validating the service descriptor 'ServiceType: Kendo.Mvc.Rendering.IKendoHtmlGenerator Lifetime: Transient ImplementationType: Kendo.Mvc.Rendering.KendoHtmlGenerator': Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=3.1.25.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.)
  Source=Microsoft.Extensions.DependencyInjection
  StackTrace:
   at Microsoft.Extensions.DependencyInjection.ServiceProvider..ctor(IEnumerable`1 serviceDescriptors, ServiceProviderOptions options)
   at Microsoft.Extensions.DependencyInjection.ServiceCollectionContainerBuilderExtensions.BuildServiceProvider(IServiceCollection services, ServiceProviderOptions options)
   at Microsoft.Extensions.DependencyInjection.DefaultServiceProviderFactory.CreateServiceProvider(IServiceCollection containerBuilder)
   at Microsoft.Extensions.Hosting.Internal.ServiceFactoryAdapter`1.CreateServiceProvider(Object containerBuilder)
   at Microsoft.Extensions.Hosting.HostBuilder.CreateServiceProvider()
   at Microsoft.Extensions.Hosting.HostBuilder.Build()
   at WebApplication2.Program.Main(String[] args) in C:\Users\Pedro.q.Magalhaes\source\repos\WebApplication2\WebApplication2\Program.cs:line 17

  This exception was originally thrown at this call stack:
    [External Code]

Inner Exception 1:
InvalidOperationException: Error while validating the service descriptor 'ServiceType: Kendo.Mvc.Rendering.IKendoHtmlGenerator Lifetime: Transient ImplementationType: Kendo.Mvc.Rendering.KendoHtmlGenerator': Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=3.1.25.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.

Inner Exception 2:
TypeLoadException: Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=3.1.25.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.


Alexander
Telerik team
 answered on 14 Jun 2022
1 answer
30 views

I have an ajax post method where the user will sign up for an open slot. After the slot gets assigned, I want to disable the button and change the text. Can anyone tell me what I'm doing wrong here. I'm coming from Web Forms to MVC so it's been a little learning curve.

 

here's my grid

@(Html.Kendo().Grid(Model)
                .Name("Grid")
                .Columns(columns =>
                {
                    columns.Bound(p => p.Id).Hidden(true);
                    columns.Bound(p => p.JobStartDateTime).Visible(false);
                    columns.Bound(p => p.JobInfo).Title("Job");
                    columns.Bound(p => p.JobTimes).Title("Times");
                    columns.Bound(p => p.JobPayDisplay).Title("Pay");
                    columns.Command(cmd => cmd.Custom("Details").Click("Details"));
                    columns.Command(cmd => cmd.Custom("Sign Up").Click("SignUp"));


                })
                .Pageable()
                .Scrollable(scr => scr.Height(500))
                        .DataSource(dataSource => dataSource
                            .Ajax()
                            .PageSize(20)
                            .ServerOperation(false)
                        )
                )

and then here's the javascript function

 


function SignUp(e) {
        var id = $(e.currentTarget).closest("tr").find('td:first').html();
        $.ajax({
            type: 'POST',
            url: '/Jobs/SignUp',
            data: {id : id},
            headers: { "RequestVerificationToken": $('input[name="__RequestVerificationToken"]').val() },
            contentType: 'application/x-www-form-urlencoded; charset=UTF-8', 
            success: function (result) {
                alert(result);
                $(this).find(".k-grid-SignUp").addClass("k-state-disabled");
                $(this).find(".k-grid-SignUp").text("Awarded");
            },
            error: function () {
                alert('Failed  ' + result);
                
            }
        })
    }

Petar
Telerik team
 answered on 13 Jun 2022
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