5 answers

529 views

Telerik UI for ASP.NET Core versioning feedback

We need your feedback, because we are considering changes in the release approach for Telerik UI for ASP.NET Core. Please provide your feedback in the comments section below:

1. Is it hard to understand the version numbers of our releases? If yes, what makes them hard to understand them?

2. Would semantic versioning (SemVer) of our releases make it easier to understand our version numbers and what's behind them?

3. If we go with SemVer, we might need to start with version 3000.0.0 as we currently use 2022.x.x. Please share your thoughts about this approach and ideas for what number versioning would work best for you.

General Discussions

answered on 05 Feb 2024

1 answer

476 views

URGENT: ListView completely broken v2023.1.314

Hi!

The ListView is breaking my web application, and I cannot make head or tail of the reason:

An unhandled exception occurred while processing the request.

NotSupportedException: "ClientTemplateId or ClientTemplateHandler" cannot be null or empty.

Kendo.Mvc.UI.ListView<T>.VerifySettings()

Also, you demos for the ListView are broken and the browser tab crashed after a while.

I need an urgent fix, as this is affecting the live application.

ListView

answered on 17 Mar 2023

0 answers

541 views

Grid Column Menu Unstick Message is Null

In our UI for ASP.NET Core R3 2020 (2020.3.915) release, the Column menu message of unsticking a column is "null".

This bug will be resolved in our next official release.

In the meantime, as a workaround, manually set the Unstick Column menu message:

.ColumnMenu(c => c.Messages(m => m.Unstick("Unstick Column")))

Grid

asked on 16 Sep 2020

1 answer

13 views

FileManager - capture server command response

Good afternoon,

I have a FileManager that I want to perform server-side checks when directories or files are renamed or deleted. For instance, the directory has files that must be kept.

I was hoping to use the command event:

command - API Reference - Kendo UI FileManager - Kendo UI for jQuery

Which mentions:

Fired when server command is executed (copy, move, delete or rename).
The event is useful to get feedback when server commands has failed or succeeded and take additional actions based on the status.

How, in my delete or update server methods, do I force an e.status of fail, and e.response text explaining why the delete or update was rejected, so I can handle that in the client Command event?

I can see that I could throw an error and then capture that in the Error event, but is it possible to do similar with the Command event? The scenario I'm describing isn't really an error, just some validation that failed.

Kind regards,

Richard

FileManager

answered on 01 Sep 2025

1 answer

14 views

getting an error when deploying the code through azure pipelines

I am getting an error in telerik.ui.for.aspnet.core when I tried to built the code through Azure pipelines. This is the error:

D:\AgentAzServices\_work\9\s\NewHirePackage.csproj : error NU1301: The local source 'C:\Users\e245737\AppData\Roaming\Telerik\Updates\telerik.ui.for.aspnet.core.hotfix.2023.3.1114.commercial\wrappers\aspnetcore\Binaries\AspNet.Core' doesn't exist.

this is the second error, I am getting:

Error NU1301: The local source 'C:\Users\e245737\AppData\Roaming\Telerik\Updates\telerik.ui.for.aspnet.core.hotfix.2023.3.1114.commercial\' doesn't exist.

do I need to upgrade the "Telerik.UI.for.AspNet.Core" to higher version? Please see the attached picture, I dont see any higher version.

Thank you.

Installer and VS Extensions

answered on 21 Aug 2025

1 answer

5 views

RadFixedDocument

Is there an example of reading a barcode from a PDF?

Barcode

answered on 21 Aug 2025

1 answer

17 views

UI issue for Column Menu Filters in Treelist

Kendo Treelist with Column Menu filter, Dropdowns and DatePicker is not showing fully. Its hiding and while scrolling also not working properly

https://netcorerepl.telerik.com/wzOWuMaW50DO1PTf30

Filter

TreeList

answered on 13 Aug 2025

1 answer

18 views

can we use 2020.1.114.440 kendo MVC dll in .net core application I am using same in .net framework 4.7.2

Hi Team,

Can we use 2020.1.114.440 kendo MVC dll in .net core application I am using same in .net framework 4.7.2.

Thanks & Regards

Amar Deep

Grid

answered on 11 Aug 2025

0 answers

13 views

Why is <meta> tag shown in viewHtml dialog editor?

It was my understanding that the Kendo editor is only designed to work with the content between the <body></body> tags and strip off <html>, <head>, and the <body> tags themselves but while I do see that those tags are indeed left out in the dialog editor a <meta> tag that I have in my <head></head> section is still being rendered (ref attached screenshot) which is not desired to the extent that I wish to re-apply the standard "format" to the saved body content changes that re-applies the standard prefix/suffix tags we use to define HTML formatted email templates (Ref below) where the {0} placeholder would represent the true editor content changes for the email template being posted back from client to be saved. However while this works I'm getting the original <meta> tag as part of the "content" when my expectation is, that because it is embedded in the <head> tag that it would get stripped out when the <body></body> internal content is rendered on the client. I am currently using the 2025.1.227 build of Telerik UI for ASP.NET Core.

private const string EmailTemplateFormat = "<html><head><meta content=\"text/html; charset=windows-1252\" /></head><body style=\"padding: 0; margin: 0;\">{0}</body></html>";

Editor

asked on 11 Aug 2025

1 answer

14 views

Detail Grid in Javascript not hitting Read function

The code below does not hit the read function so the details shows every detail row for each of the outer rows.(There should only be one detail row per outer row) I am following this example here: ASP.NET MVC Grid Detail Template Demo | Telerik UI for ASP.NET MVC which I use basically the same syntax for it and for an unknown reason theirs works and mine doesnt. My Javascript console gives me a 500 error which doesnt provide me with any way to resolve. Ive commented out stuff in the outer grid as I populate in the get method anyway. Can someone please look into this?

Outer grid:

<div id="RelatedAppearances-scheduling" style="margin-right:8px;border:none;padding:0;color:black; padding-bottom: 20px;">
	<div id="RelatedAppearancesTopRowInfo" >
		<div id="RelatedAppearances-Grid" style="width:99%;">
		@Html.Kendo().Grid(Model.RelatedAppearanceList).Name("RelatedAppearancesGrid").Size(ComponentSize.Small).Editable(GridEditMode.PopUp).Resizable(r => r.Columns(true)).ToolBar(r =>
		{
			r.Create().Text("Add Appearance");
		}

		).Columns(col =>	{
						   col.Bound(c => c.FileNumber).Title("File Number").Width(175);
						   col.Bound(c => c.CourtDate).Title("Court Date").Width(150);
						   col.Bound(c => c.CourtTime).Title("Court Time").Width(150);
						   col.Bound(c => c.Purpose).Width(100);
						}).Sortable().DataSource(dataSource => dataSource
						.Ajax()
			                        // .Read(r => r.Url("/Appearances/SchedulingInformation?handler=ReadEntity").Data("forgeryToken"))
					        // .Update(r => r.Url("/Appearances/SchedulingInformation?handler=UpdateEntity").Data("forgeryToken"))
						// .Destroy(r => r.Url("/Appearances/SchedulingInformation?handler=DestroyEntity").Data("forgeryToken"))
						// .Model(model =>
						// {
						// 	model.Id(p => p.AppearanceID);
						// })
						).ClientDetailTemplateId("RelatedAppearancesDetail");
							</div>
						</div>
					</div>

Javascript detail grid:

<script id="RelatedAppearancesDetail" type="text/kendo-tmpl">
		 	@(Html.Kendo().Grid(Model.RelatedAppearanceList).Name("innergrid_#=AppearanceID#")
			      .Columns(columns =>
		        	{
				columns.Bound(o => o.AppearanceDetails.AppearanceJudge).Title("Judge").Width(80);
				columns.Bound(o => o.AppearanceDetails.AppearanceType).Title("Appearance Type").Width(80);
				columns.Bound(o => o.AppearanceDetails.Outcome).Title("Outcome").Width(80);
				columns.Bound(o => o.AppearanceDetails.ToTH).Title("To T & H").Width(80);
				})
				.DataSource(dataSource => dataSource
				.Ajax()
				.Read(read => read.Action("ReadRelatedAppearanceDetail", "Grid", new { AppearanceID = "#=AppearanceID#" })))
				.Sortable()
				.ToClientTemplate())
</script>

Razor method:

        public JsonResult ReadRelatedAppearanceDetail(int AppearanceID, [DataSourceRequest] DataSourceRequest request)
        {
            var curAppearance = RelatedAppearanceList.Where(a => a.AppearanceID == AppearanceID).FirstOrDefault();
            return new JsonResult(new[] { curAppearance }.ToDataSourceResult(request, ModelState));

        }

Related Appearance Model:

 public class RelatedAppearanceDTO
 {
     public int AppearanceID {  get; set; }

     public string FileNumber {  get; set; }

     public string CourtDate { get; set; }

     public string CourtTime { get; set; }

     public string Purpose {  get; set; }

     public string AppearanceType {  get; set; }

     public string CalendarRemarks {  get; set; }

     public string Outcome {  get; set; }

     public string OutcomeComments {  get; set; }

     public string ToTAndH {  get; set; }

     public RelatedAppearancesDetailModel AppearanceDetails { get; set; }

 }

Related Appearance Detail Model:

  public class RelatedAppearancesDetailModel
  {
      public int AppearanceID { get; set; }
      public string AppearanceJudge { get; set; }

      public string AppearanceType { get; set;}

      public string CalendarRemarks { get; set; }

      public string Outcome { get; set; }

      public string OutcomeComment { get; set; }

      public string ToTH { get; set; }

      public string Minutes { get; set; }

      public string Disposition { get; set; }


  }

Grid

answered on 05 Aug 2025