Won't Fix
Last Updated: 26 Apr 2017 10:38 by ADMIN
Won't Fix
Last Updated: 25 Apr 2017 13:28 by ADMIN
Created by: Anton
Comments: 1
Category: UI for ASP.NET AJAX
Type: Bug Report
The issue can be workarounded by calling preventDefault of the mousedown event when ComboBox item is clicked:
<telerik:RadScriptManager runat="server" />
	var onDocumentClick = Telerik.Web.UI.RadComboBox.prototype._onDocumentClick;
	Telerik.Web.UI.RadComboBox.prototype._onDocumentClick = function (e) {
		if (!e) e = event;

		var target = e.target || e.srcElement;

		while (target.nodeType !== 9) {
			if (!target.parentNode || target == this.get_element() || target == this.get_dropDownElement()) {

			target = target.parentNode;
		onDocumentClick.call(this, e);

<telerik:RadComboBox ID="RadComboBox1" runat="server" RenderMode="Lightweight" OnClientBlur="OnClientBlur"
		<telerik:RadComboBoxItem Text="Item1" Value="1" />
		<telerik:RadComboBoxItem Text="Item2" Value="2" />
		<telerik:RadComboBoxItem Text="Item3" Value="3" />
		<telerik:RadComboBoxItem Text="Item4" Value="4" />

	function OnClientBlur(sender, args) {
		console.log("Blur event");
Won't Fix
Last Updated: 27 Mar 2017 11:01 by ADMIN
This is a duplicate of http://feedback.telerik.com/Project/108/Feedback/Details/210060, see there for a workaround and for status updates.

You can change the DPI settings in Windows from the Display Settings. Setting a size of 125% and clicking on a button will throw a server exception:


Input string was not in a correct format.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.FormatException: Input string was not in a correct format.

Source Error: 
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 
[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +12526913
   System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +120
   Telerik.Web.UI.RadImageButton.LoadPostData(String postDataKey, NameValueCollection postCollection) +256
   Telerik.Web.UI.RadWebControl.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +16
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +457
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1833
Won't Fix
Last Updated: 08 Mar 2017 16:02 by John
Won't Fix
Last Updated: 21 Feb 2017 13:49 by ADMIN
When the control is modal it should create a second iframe behind the modal background like it creates one behind the popup itself. This will allow the modal background to stay above heavy-weight objects in IE as well.
Won't Fix
Last Updated: 17 Feb 2017 09:09 by ADMIN
Created by: Marin Bratanov
Comments: 1
Category: UI for ASP.NET AJAX
Type: Bug Report
The sprite images for the RadButton are moved from the "Button" folder to the "Common" folder of the skins, but the Visual Style Builder searches the images in the Button folder.

The workaround is to extract the archive generated by the Visual Style Builder, move the sprites from the Common folder to the Button folder, archive the files again and import them in the Visual Style Builder. This allows you to edit them in the tool and after that you can download the skin and move the sprites back to the Common folder.
Won't Fix
Last Updated: 19 Jan 2017 09:41 by ADMIN
When a new anchor is created and an anchor name is set via the Hyperlink Manager tool of RadEditor, the 'name' attribute will not be applied under IE7. Under IE8 the specified anchor name is set to a 'submitname' attribute of the anchor element.
Won't Fix
Last Updated: 19 Jan 2017 09:40 by ADMIN
The IE iframe module crashes, most likely because of the fact that events do not bubble to iframes.
Won't Fix
Last Updated: 11 Jan 2017 14:05 by ADMIN
Won't Fix
Last Updated: 28 Nov 2016 15:12 by ADMIN
Created by: Angel Petrov
Comments: 1
Category: UI for ASP.NET AJAX
Type: Bug Report

Won't Fix
Last Updated: 18 Oct 2016 11:25 by ADMIN
The ContentTemplate is designed as a container for server controls, so you would need to declare and use a RadWindow with a ContenTemplate (even blank) for this to work as expected. The ContentTemplate element is not created upon client-side setting at this point, so having a content that is not where it is supposed to be may break the control afterwards (e.g., if autosizing is used).

A workaround is to create a dummy content template that can alleviate most issues:
var wnd = radopen(null, wndName);

//create an imitation of the ContentTemplate
if (!wnd.___customContentElemCreated) {
$telerik.$("iframe", wnd.get_popupElement()).remove();

var cElem = document.createElement("div");
cElem.setAttribute("id", wnd.get_id() + "_C");
cElem.style.display = "";
cElem.style.overflow = "auto";
cElem.style.border = "0px";

wnd.___customContentElemCreated = true;

Won't Fix
Last Updated: 17 Oct 2016 15:55 by ADMIN
The issue is not reproducible for RadDropDownList with RenderMode="Lightweight" .
Won't Fix
Last Updated: 11 Oct 2016 11:21 by ADMIN
If the content of the editor contains an inline style which starts with - as -webkit-text-... like in:

<h1 style="-webkit-text-stroke-width: 0px;">My Title</h1>

A server error is thrown:

Server Error in '/' Application.
Name cannot begin with the '-' character, hexadecimal value 0x2D.
Won't Fix
Last Updated: 27 Sep 2016 07:18 by ADMIN
A proper workaround for this problem is applying this CSS rule:

div.RadEditor .RadRibbonBar .rrbButton img.rrbButtonImage {
Won't Fix
Last Updated: 21 Sep 2016 13:04 by ADMIN
The scripts of the controls are not combined in a single request, when the web.config key Telerik.ScriptManager.TelerikCdn.CombinedResource has value Enabled:

Steps to reproduce
1. Ad the following configuration in the web config and open a page containing RadControl.

    <add key="Telerik.ScriptManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.ScriptManager.TelerikCdn.CombinedResource" value="Enabled" />

Result: The scripts are not combined.


Enable the script combining in the ScriptManager declaration:

    <telerik:RadStyleSheetManager runat="server">
        <CdnSettings CombinedResource="Enabled" TelerikCdn="Enabled" />
Won't Fix
Last Updated: 15 Sep 2016 13:27 by ADMIN
The changes applied to a newly uploaded image through the ImageEditor are not taken into account when inserting the image in RadEditor. The issue is reproducible in all browsers.

video: http://screencast.com/t/Uz4BAr9Lj

Won't Fix
Last Updated: 02 Sep 2016 15:42 by ADMIN
Won't Fix
Last Updated: 16 Aug 2016 05:55 by ADMIN
Currently the &quot; entity is converted to a single quote under Chrome or Firefox, when ConvertToXhtml filter is enabled and the entity is placed in the value of an HTML attribute, for example href.
Won't Fix
Last Updated: 11 Aug 2016 11:24 by Krishnaprabhuraja
Created by: Krishnaprabhuraja
Comments: 0
Category: InputManager
Type: Bug Report

Enabling/disabling RadTextBox in client-side does not not seem to reflect same with the corresponding button control.


Thank you,
Krishna Raja