Won't Fix
Last Updated: 19 Oct 2026 12:58 by ADMIN
Created by: Brandon
Comments: 1
Category: Grid
Type: Bug Report
0

Hi Team,

Bug Report

The Kendo UI Grid's toolbar with a template is not persisted when the Grid is loaded using setOptions. 

Reproduction of the problem

With a toolbar containing a template with server tags, the toolbar content will disappear.

Expected Behavior

The Grid should retain the toolbar with the HTML contained when using setOptions.

Environment

Kendo UI version: 2022.2.510
jQuery version:
all
Browser: all

Thanks!

Won't Fix
Last Updated: 19 Oct 2026 12:45 by ADMIN
Created by: Phạm
Comments: 1
Category: UI for ASP.NET MVC
Type: Bug Report
0
I have a grid like this:

@(Html.Kendo().Grid<VIP_Logic.Models.Dashboard.CriteriaModel>().Name("dgdCriteria")
                  .Columns(column =>
                  {
                      column.Bound(b => b.ParamIndex).Title("No.").Width(40);
                      column.ForeignKey(b => b.ColumnName, (IEnumerable<SelectListItem>)ViewBag.LstColumnNames, "value", "text").HtmlAttributes(new { style = "text-align: left", onChange = "onChangeColumn('#=ParamIndex#');" }).Title("Column").Width(100);
                      column.ForeignKey(b => b.Operator, (IEnumerable<SelectListItem>)ViewBag.LstOperators, "value", "text").HtmlAttributes(new { style = "text-align: left", onChange = "onChangeOperator('#=ParamIndex#');" }).Title("Operator").Width(100);
                      column.Bound(b => b.ParamValue).HtmlAttributes(new { style = "text-align: left", onChange = "setCriteriaXml();" }).Title("Value").Width(150).Encoded(false);
                      column.Bound(b => b.ParamIndex).ClientTemplate("<button class= 'k-button' type='button' onclick=onRemoveCriteria('#=ParamIndex#')>" + "Remove" + "</button>").HtmlAttributes(new { style = "text-align: center" }).Title(string.Empty).Width(50);
                  })

All the function in onchange attribute required a parameter ParamIndex. In old version, the syntax "#=ParamIndex#'" still work fine, but since i upgrade Kendo UI to latest version, this syntax doesn't work anymore. How can i make it work like old version?
Won't Fix
Last Updated: 19 Oct 2026 12:44 by ADMIN

Hello Telerik Support Team,

We are experiencing an issue with a Telerik MVC Grid where changing the page size results in multiple Ajax requests being sent to the server.

Environment

  • Telerik MVC Grid
  • ASP.NET MVC
  • Ajax Binding Enabled
  • Custom Binding Enabled

Current Behavior

When the user changes the page size (for example, from 5 to 50), multiple requests are sent to the grid's Ajax binding action.

Example:

  1. Grid displays 5 rows.
  2. User changes page size from 5 to 50.
  3. Multiple requests are observed in the browser Network tab.
  4. All requests target the same Ajax binding action.
  5. All requests return HTTP 200.

Expected Behavior

Changing the page size should trigger a single Ajax request to the server.The grid uses below code

.Pageable(pager => 
                pager.PageSize(Model.GridModel.PageSize, Model.GridModel.PageSizeSelections)
                .Position(GridPagerPosition.Bottom)
                .Style(GridPagerStyles.NextPreviousAndNumeric | GridPagerStyles.PageInput | GridPagerStyles.PageSizeDropDown))
    .NoRecordsTemplate(TMS.Resources.PositionManager.UI.NoOnboardingDocumentInstancesFoundMessage)
    .HtmlAttributes(new { width = "98%" })   

  1. Is multiple Ajax-request behavior during page-size changes a known Telerik MVC Grid issue or expected behavior?
  2. Are there Telerik recommendations to prevent duplicate Ajax requests when changing page size?
  3. Is there a built-in Telerik mechanism to ensure only a single Ajax request is sent for a page-size change?
  4. Could this be caused by Telerik internally triggering multiple rebind operations?
  5. Is there a Telerik-supported approach for preventing duplicate requests without introducing a custom client-side request lock?

We also found a Telerik forum post discussing similar behavior during page-size changes:

https://www.telerik.com/forums/multiple-requests-on-telerik-grid-page-size-change

Could you please confirm whether our observed behavior is related to the same issue and advise on the recommended solution?

Note:

This issue occurs in a legacy ASP.NET MVC application using Telerik Extensions for ASP.NET MVC version 2011.3.1306.340 running on .NET Framework (not .NET 6+).
 
Indicators:
- .ascx ViewUserControl views
- System.Web.Mvc
- Telerik MVC Extensions (legacy Telerik MVC Grid)

Thank you.

Won't Fix
Last Updated: 19 Oct 2026 12:11 by ADMIN

Bug report

Reproduction of the problem

Dojo: https://dojo.telerik.com/InusevuW/2

  1. Click the resize handle on the right side of the the event and resize it so that it ends on June 10 at 9:00 AM.
  2. Try to move the event so that it ends 1h later (e.g. at 10:00 AM) but don't drop it.

Current behavior

The event snaps to the last slot of June 10.
Resizing the event (1) then moving it to start 1h earlier (3PM) doesn't work either. Dropping the event at 3PM makes it appear incorrectly.

Expected/desired behavior

The slots the event spans over should be properly calculated and on moving the event it should snap to the hovered slots.

Environment

  • Kendo UI version: 2021.2.511
  • jQuery version: x.y
  • Browser: [all ]
Won't Fix
Last Updated: 25 Sep 2026 16:13 by ADMIN
Created by: Jason
Comments: 2
Category: Installer and VS Extensions
Type: Bug Report
1

Creating a Telerik project for the "Standard" option is broken (VB.NET and C#):

1. The project fails building due to this error:

2. The rendered hamburger menu does not appear properly: