Marin Bratanov
Team Member

ADD a label below the gauge pointer

For the time being you can position a style element with absolute position below the gauge cap that will store the current value of the gauge. See an example in the forum post.

You can vote for this feature so that it must be implemented in the Kendo Gauge first
Once it gets implemented, it can be ported to the UI for ASP.NET AJAX Gauge server wrapper.
Feature Request by Marin Bratanov Status: Approved Comments: 0 Category: RadGauge Scheduled for: Not Scheduled Last update: 2017-11-21T09:44:03 by Marin Bratanov
Marin Bratanov
Team Member

Batch Editing: Uncaught TypeError: Cannot read property 'style' of undefined when, in EditType=row, you open a cell in a column where the previous opening was cancelled

The reason for the behavior is that the column editor does not move to the cell when you cancel its opening. Opening a cell in the same column expects the column editor to be in the previously opened cell, however, and this causes the error. Repro is attached to illustrate the scenario.

- Use EditType=Cell so that each cell opens independently of the row (wokaround 1).
- Use the provided function override (workaround 2). Make sure to remove it after upgrading to a release that has the fix. This function override may prevent you from getting other updates and fixes in this function.
- Use a template column and hide the editor based on your condition in the OnBatchEditOpened event (workaround 3)
Bug Report by Marin Bratanov Status: Approved Comments: 0 Attachments: 4 Category: RadGrid Scheduled for: Not Scheduled Last update: 2017-11-20T15:11:19 by Marin Bratanov
Attila Antal
Team Member

Newly created child tab not showing up

When adding a child tab programmatically to a second TabStrip tab that has no child item, the newly created child tab will not show up.

Workaround is to remove the class that was hiding the child element:

if (selectedTab.get_tabs().get_count() > 0) {
Bug Report by Attila Antal Status: Approved Comments: 0 Category: RadTabStrip Scheduled for: Not Scheduled Last update: 2017-11-20T10:44:05 by Attila Antal
Marin Bratanov
Team Member

FIX RadLiveTile throws a JavaScript error after being disposed in a partial postback

A workaround is to remove the loading sign functionality by placing the following script at the end of the form tag

The second override is necessary only if you use the OnClientDataLoaded event to alter the data and add fields in the data object that do not exist in the server response. You need to rename the OnClientDataLoaded method call to use your actual method name.

You can find an example of both workarounds and their usage attached.

Some additional information:
- If possible, move the tiles out of the AJAX request, as this will eliminate all of the problems. Depending on the actual scenario perhaps you can make sure they are not in an update panel (e.g., position them absolutely on the page while keeping their markup out of the partial postback).
- consider moving any data formatting logic from the event handler to the template. You can define functions that format the code in the template, not only in the event. An example is available in the attached file. Alternatively, you can return the data formatted from the web service.
- consider reducing the time interval for the requests, because after the AJAX request, only 1 of 2 requests will update the tile UI.
Bug Report by Marin Bratanov Status: Approved Comments: 0 Attachments: 1 Category: RadTileList Scheduled for: Not Scheduled Last update: 2017-11-17T11:36:13 by Marin Bratanov
Peter Milchev

Getting WebResource.axd not found error (404) when searching for Windows7.sprite.grid.png

Workaround: Use the following styles

html .RadGrid_Windows7 .rgSave,
html .RadGrid_Windows7 .rgAdd,
html .RadGrid_Windows7 .rgRefresh,
html .RadGrid_Windows7 .rgEdit,
html .RadGrid_Windows7 .rgDel,
html .RadGrid_Windows7 .rgFilter,
html .RadGrid_Windows7 .rgPagePrev,
html .RadGrid_Windows7 .rgPageNext,
html .RadGrid_Windows7 .rgPageFirst,
html .RadGrid_Windows7 .rgPageLast,
html .RadGrid_Windows7 .rgExpand,
html .RadGrid_Windows7 .rgCollapse,
html .RadGrid_Windows7 .rgSortAsc,
html .RadGrid_Windows7 .rgSortDesc,
html .RadGrid_Windows7 .rgUpdate,
html .RadGrid_Windows7 .rgCancel,
html .RadGrid_Windows7 .rgUngroup,
html .RadGrid_Windows7 .rgExpXLS,
html .RadGrid_Windows7 .rgExpDOC,
html .RadGrid_Windows7 .rgExpPDF,
html .RadGrid_Windows7 .rgExpCSV {
background-image: none;

html .RadGrid_Windows7 th.rgSorted {
background-image: none;

html .RadGrid_Windows7 .rgMasterTable .rgSelectedCell,
html .RadGrid_Windows7 .rgSelectedRow {
background-image: none;

html .RadGrid_Windows7 .rgMasterTable .rgActiveCell,
html .RadGrid_Windows7 .rgActiveRow,
html .RadGrid_Windows7 .rgHoveredRow {

background-image: none;

html .RadGrid_Windows7 .rgEditRow {
background-image: none;

html .RadGrid_Windows7 .rgPager {
background-image: none;

html .RadGrid_Windows7 .rgPager .rgPagerButton {
background-image: none;

html .RadGrid_Windows7 .rgNumPart a:hover,
html .RadGrid_Windows7 .rgNumPart a.rgCurrentPage {
background-image: none;

html .RadGrid_Windows7 .rgNumPart a:hover span,
html .RadGrid_Windows7 .rgNumPart a.rgCurrentPage span {
background-image: none;

html .GridReorderTop_Windows7 {
background-image: none;

html .GridReorderBottom_Windows7 {
background-image: none;

html .RadGrid_Windows7 .rgGroupPanel {
background-image: none;

html .RadGrid_Windows7 .rgGroupItem {
background-image: none;

html .RadGrid_Windows7 .rgGroupHeader {
background-image: none;

html .RadGrid_Windows7 .rgCommandRow {
background-image: none;
Bug Report by Peter Milchev Status: New Comments: 0 Attachments: 1 Category: None Scheduled for: Not Scheduled Last update: 2017-11-16T14:53:45 by Peter Milchev
Danail Vasilev
Team Member

Improve RadHtmlChart To and From properties in PlotBands so that they accepts DateTime object

There are two workarounds you can use in the meantime

- Use string representations of the dates instead of actual dates. In this manner you can bind the chart to strings and use a "regular" categorical axis and then the plot bands will work based on the index of the item. In such a case you will need to aggregate the data yourself before passing it to the chart.
- Using the Kendo Chart widget directly, and here is an example of using date objects and adding plot bands dynamically:

Here is also a basic example of fetching the Kendo Chart scripts through a hidden RadHtmlChart so that you can easily use the Kendo Chart widget

var myData = [{
"day": new Date("2014/01/01")
}, {
"day": new Date("2014/01/02")
}, {
"day": new Date("2014/01/31")

function addPlotBand() {
$ = $telerik.$;

var start = new Date(2014, 0, 1 + Math.floor(Math.random() * 30));
var end = new Date(start.getTime() + 1000 * 3600 * 24); // 24 hours after start

var options = {};

options["categoryAxis"] = {
plotBands: [{
from: start,
to: end,
color: "green"


function pageLoad() {
$ = $telerik.$;
dataSource: {
data: myData
categoryAxis: {
type: "date",
field: "day"
<telerik:RadButton ID="RadButton1" runat="server" AutoPostBack="false" OnClientClicked="addPlotBand" Text="add plotband" />
<div id="chart2"></div>
<telerik:RadHtmlChart runat="server" ID="chart" Style="visibility: hidden;">
<XAxis DataLabelsField="day">
Feature Request by Danail Vasilev Status: Approved Comments: 4 Category: RadHtmlChart Scheduled for: Not Scheduled Last update: 2017-11-15T12:31:12 by ilan mazuz
JF Gagnon

Foreground color not saved in radspreadsheet

When I save my radspreadsheet, foreground color is not saved. When I load the radspreadsheet from an excel file, the foreground color is not loaded.

If you change like font, color, etc the OnClientChange event is not fired.
Bug Report by JF Gagnon Status: New Comments: 0 Category: RadSpreadsheet Scheduled for: Not Scheduled Last update: 2017-11-14T12:23:48 by JF Gagnon
Tony Monaco

enable the radtilelist tilegroup item to have it's layout defined by a layouttemplate

The current RadTileList TileGroup item is only settable as text. Is it possible to modify this item to use a LayoutTemplate so that additional items could be added to the TileGroup area?
Feature Request by Tony Monaco Status: New Comments: 0 Category: RadTileList Scheduled for: Not Scheduled Last update: 2017-11-14T08:21:18 by Tony Monaco
Rumen Jekov
Team Member

Unable to get property 'dispatchEvent' of undefined or null reference error in IE11

We are seeing a JavaScript error when we select an Option in a Select control with a ASP Postback on IE11 via keyboard input.
<%@ Page Language="C#" AutoEventWireup="true" Inherits="System.Web.UI.Page" %>

<script runat="server">
void Page_Load(object sender, EventArgs e)
decorator.DecoratedControls = FormDecoratorDecoratedControls.Select;

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<html xmlns="" >
<title>DD Test Page</title>


<form id="DialogForm" runat="server">
<telerik:RadScriptManager runat="server" />
<telerik:RadAjaxManager runat="server" />
<telerik:RadFormDecorator ID="decorator" runat="server" DecorationZoneID="Panel1" EnableEmbeddedSkins="false" RenderMode="Lightweight" />
<telerik:RadAjaxPanel ID="Panel1" runat="server">
<asp:DropDownList ID="DD1" runat="server" AutoPostBack="true">
<asp:ListItem Text="[Select]" Value="" />
<asp:ListItem Text="T1" Value="1" />
<asp:ListItem Text="T2" Value="2" />

<asp:Button runat="server" Text="Refresh" />


Reproduce by clicking the DropDown control, and then pressing 'T', and then clicking on a blank section of the page.
Bug Report by Rumen Jekov Status: Approved Comments: 0 Category: RadFormDecorator Scheduled for: Not Scheduled Last update: 2017-11-10T16:29:35 by Rumen Jekov
Mike Dearman

SHIFT+F10 hotkey should open grid's context menu without bringing up browser's own menus (Accessibility Issue)

For keyboard users who don't have a specific Context Menu key (see, they typically need to use the Windows standard SHIFT+F10 hotkey to trigger a contextmenu event.

For example:

1. In IE, load
2. Tab to a column header link
3. Press SHIFT+F10 (standard Windows/IE hotkey to open context menu)
4. Notice the context menu displays, however, the focus is really on the IE menubar. IE supports F10 to open the menubar, but is also seeing SHIFT+F10 too.

1. In FireFox, load,' target='_blank'>
2. Tab to a column header link
3. Press SHIFT+F10 (standard Windows/IE hotkey to open context menu) then press down arrow
4. Notice the context menu displays, however, the focus is really on FireFox's application system menu in the upper left.

Chrome does not have this issue - it opens the grid context menu only.
We need IE and FireFox to also only open the grid's context menu, and not trigger default browser behavior.

According to, it is possible to correct this behavior by calling event.preventDefault() when SHIFT+F10 is pressed, but then trigger a synthetic contextmenu event anyway.

As a workaround, we know users can press Escape to close the browser's default menu and bring focus back into the HTML document (and thus the grid's context menu), but this throws off the user experience and becomes a training issue.
Feature Request by Mike Dearman Status: New Comments: 3 Category: RadGrid Scheduled for: Not Scheduled Last update: 2017-11-09T15:41:44 by Marin Bratanov
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