Last Updated: 24 Feb 2020 09:42 by ADMIN

We are using CDN and combined scripts as much as possible, and have run into an issue with the RadEditor and applying custom CSS Classes break, e.g. the applied CSS class on the selected content gets stripped for example from 





Last Updated: 21 Feb 2020 11:29 by ADMIN
Created by: n/a
Comments: 1
Category: Editor
Type: Feature Request
Are there any plans to introduce Word-compatible comments, which can be viewed in Word using the "review" Office functionality? Or at least the ability to preserve comments after exporting to Word and then back to html?
Last Updated: 21 Feb 2020 11:00 by ADMIN

ConvertWordLists errors out when pasting bullets in a nested table inside another table from Word. 

Test with the attached word doc in the https://demos.telerik.com/aspnet-ajax/editor/examples/cleaningwordformatting/defaultcs.aspx demo and you'll get the following error:

RadEditor.js:17416 Uncaught TypeError: Cannot read property 'appendChild' of null
    at b.WordListConverter.insertList (RadEditor.js:17416)
    at b.WordListConverter.convert (RadEditor.js:17570)
    at Object.convertWordLists (RadEditor.js:257)
    at Object.cleanPastedContent (RadEditor.js:146)
    at c.RadEditor._onAfterPaste (RadEditor.js:10229)
    at c.RadEditor.afterPasteDelegate (Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ctl00_QsfScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3ad28568d3-e53e-4706-928f-3765912b66ca%3aea597d4b%3ab25378d2:6)


Last Updated: 20 Feb 2020 10:52 by ADMIN
Scheduled for R2 2020

RadClientDataSource does not update the data properly when bound to EntityDataSource. The proper data is displayed only of first load (when the data is fetched via _kendoDataSource.read()), but not after an update (e.g. a page change)

Steps to reproduce:

  1. Open https://demos.telerik.com/aspnet-ajax/clientdatasource/functionality/binding-to-datasourcecontrols/defaultcs.aspx
  2. Do either one of the following
     - Change to page 2 and go back to page 1
     - Hitting refresh loses all data
     - Edit multiple values before saving -> many of them are lost
     - Upon save, the old data reappears before being updated.

Result - the Grid is not bound with the correct data

Last Updated: 20 Feb 2020 09:10 by ADMIN
Created by: Orit
Comments: 1
Category: UI for ASP.NET AJAX
Type: Feature Request

Hi , 

Why is your combobox does not support BOTH multiple select AND LoadOnDemand ?

It would be so convenient to have .

I see a lot of questions like that, but all the answers explain why its not supported.

I tried all other recommendations ( like using RadAutoCompleteBox or searchbox ) , but it's not displaying any items in the drop down list ,so the user has to know what he is looking for, withuy having ability to select it from the list. 

PLEase let me know if you have ANY Telerik control which allows both features .

If you do not have , I would like to submit a feature request for that .

I really do not care what control it will be .

All i need is to be able to select from the list ( with option to select all ) , OR to start typing , and then it will prompt for a matches .

Thanks ,





Last Updated: 19 Feb 2020 14:15 by ADMIN
Release R1 2020 SP1
Created by: Imported User
Comments: 20
Category: UI for ASP.NET AJAX
Type: Feature Request
Telerik already provide PDF Viewer for Silverlight, this control is very common used and safe our time to display PDF without using client's browser plugin. 

It will be great this control to be available in ASP.NET, we will not spending IT budget for another controls.

Telerik we know you can do it, this will make you more competitive.
Last Updated: 19 Feb 2020 12:57 by ADMIN
Release R1 2020 SP1

I issue is replicated consistently with the following simple setup, when the page is scrolled so the grid is on the top and right-clicking the column, to open the menu 

<div style="height: 200px"></div>
<telerik:RadGrid ID="RadGrid2" runat="server" AllowFilteringByColumn="true" EnableHeaderContextMenu="true">

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
        RadGrid2.DataSource = Enumerable.Range(1, 3).Select(x => new { ID = 1, Desc = "Some text" });
<div style="height: 4000px"></div>

Last Updated: 19 Feb 2020 12:56 by ADMIN
If you setup multiple RadEditor controls on a single page with RenderMode set to Lightweight then when you change the foreground or background colour on one control, the other controls update their toolbar at the same time.

Sample Page code
    <h1>Editor 1</h1>
    <telerik:RadEditor ID="editor1" runat="server" RenderMode="Lightweight"></telerik:RadEditor>

    <h1>Editor 2</h1>
    <telerik:RadEditor ID="editor2" runat="server" RenderMode="Lightweight"></telerik:RadEditor>

Last Updated: 19 Feb 2020 12:56 by ADMIN
Release R1 2020 SP1
Created by: MikeK
Comments: 0
Category: Spreadsheet
Type: Feature Request
Please provide the ability to add Tooltips to specific cells.
Last Updated: 19 Feb 2020 12:55 by ADMIN
Release R1 2020 SP1
Created by: Jeff Cuddigan
Comments: 0
Category: AsyncUpload
Type: Bug Report

This issue is observed only in R1 2020. The solution is to not disable the FileAPI.

Reproduction steps:

    Telerik.Web.UI.RadAsyncUpload.Modules.FileApi.isAvailable = function () { return false; };
    Telerik.Web.UI.RadAsyncUpload.Modules.Flash.isAvailable = function () { return false; };
    Telerik.Web.UI.RadAsyncUpload.Modules.Silverlight.isAvailable = function () { return false; };
<telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" ></telerik:RadAsyncUpload>

Last Updated: 19 Feb 2020 12:46 by ADMIN

When trying to drag and drop an appointment over the All Day slot, the ghost element is not positioned properly. This is easily observed when the browser is zoomed.

Replicated on the Overview demo

Pending Review
Last Updated: 19 Feb 2020 11:50 by Lee
Created by: Lee
Comments: 0
Category: Grid
Type: Feature Request
Can the RadGrid generate columns from the client data source schema, it's painful having to manually declare the columns both in the RadGrid and the schema, again can something be done to make this control more user friendly?
Pending Review
Last Updated: 18 Feb 2020 08:59 by ADMIN

With no filtering applied, the filter menu still highlights the filter-function defined in the CurrentFilterFunction property of the column.

Last Updated: 17 Feb 2020 15:08 by ADMIN
Endless Loading screen is shown over RadPane when the set_showContentDuringLoad(false) method before changing the contentUrl of a RadPane (which is already showing another external page).

Workaround: Set the ShowContentDuringLoad="false" property of the RadPane in the markup initially


Code to reproduce the bug:

            function loadNewPage() {
                var contentPane = $find("RadPane2");
        <telerik:RadSplitter ID="RadSplitter1" runat="server" Width="100%" Orientation="Horizontal" Height="800px">
            <telerik:RadPane ID="RadPanel1" runat="server" Height="30px">
                <asp:Button Font-Italic="true" runat="server" Text="Load New Page" OnClientClick="loadNewPage(); return false;" />
            <telerik:RadPane ID="RadPane2" runat="server" ContentUrl="https://www.wikipedia.com">

Pending Review
Last Updated: 17 Feb 2020 13:40 by ADMIN
We have found a problem, which is that the filters do not seem to take the EnableEmbeddedBaseStylesheet settings from the Grid.
Last Updated: 17 Feb 2020 07:45 by ADMIN
Release R1 2020 SP1
Some HtmlChart appearance properties are not fully applied in R1 2020 (e.g. XAxis.MajorGridlines="false", ChartTitle.Appearance.TextStyle.Font, etc.)
Temporary workaround:
            var datavizThemes = kendo.dataviz.ui.themes || {};
            Telerik.Web.UI.RadHtmlChart.prototype.applyTheme = function () {
                var that = this,
                 kendoWidget = that.get_kendoWidget(),
                 themeName = kendoWidget.options.theme,
                 theme = datavizThemes[themeName];
                if (theme && theme.chart) {
Last Updated: 14 Feb 2020 11:40 by ADMIN
Created by: Sanjay
Comments: 1
Category: ImageEditor
Type: Feature Request



I would like to use airbrush function in ImageEditor control.

Anyone can help my requirement??

Pl. I need this function very urgent.



Jiten Mutum

Last Updated: 14 Feb 2020 09:32 by ADMIN
Created by: Cameron
Comments: 2
Category: PageLayout
Type: Feature Request
Rows and columns should have the same features - like in WPF.

Why not add Span and ColSpan to rows. It's a given that a row should default to 100% width of containing element.

RowSpan could set the width to that defined by the grid system - ie: Span 6 (of 12) is 50% width. The span could also be a hard-coded px value. Similar to using spans instead of divs in HTML.

ColSpan could interrogate the columns within the row and adopt their widths - ie: ColSpan 2 = same width as the 1st and 2nd columns combined.
Pending Review
Last Updated: 13 Feb 2020 16:54 by ADMIN
Created by: Doug
Comments: 1
Category: UI for ASP.NET AJAX
Type: Feature Request


Hi,It would be really handy to have an best practice identity provider UX 

There are  many ways to skin a cat, but it would be really handy to have a UI component much like you find in the ~/Account folder created by MS that all worked.
That had all the recovery logon by email working, having built in 2FA working.

The quick win would be to tell us how to write a 'Telerik Scenario' and where we can share them in Marketplace.telerik.com ?




Pending Review
Last Updated: 12 Feb 2020 11:28 by ADMIN

Issue #1. When the Grid is not having any records (i.e. when the grid is initialized for the first time), if we define the Detail Item Template than the item template is shown 10-11 times. 

Issue#2: When we have the pagination enabled in the grid and the records are fully filled on the first page and suppose the second page is half-filled with records, then in this scenario On the second page even the records of the first page are hidden but the data item template for those rows are visible which is not correct. Screenshot is attached.

Issue #3: The same scenario is happening when we searched the grid first with 10 records and then we search for 2 records, In this case also 8 records will be removed but there data item templates will still be visible on the grid.

1 2 3 4 5 6