I suggest update Device Screen Size for 

Telerik.Web.Device.Detection

using System;

namespace Telerik.Web.Device.Detection
{
    /// <summary>
    /// The device screen size based on the its dimensions in CSS pixels
    /// </summary>
    /// <remarks>
    ///The default ranges are:
    /// Small (to 600) CSS pixels
    /// Medium (601-1024) CSS pixels
    /// Large (1025 - 1366) CSS pixels
    /// ExtraLarge (over 1366) CSS pixels
    /// FullHD (over 1920) CSS pixels
    /// UHD4K = 5 // 3840
    /// UHD8K = 6 // 7680
    /// UHD10K = 7 // 10240
    /// </remarks>
    public enum DeviceScreenSize
    {
        Small = 0, // 0-600
        Medium = 1, // 601-1024
        Large = 2, // 1025 - 1366
        ExtraLarge = 3 // over 1366
        FullHD = 4 // 1920
        UHD4K = 5 // 3840
        UHD8K = 6 // 7680
        UHD10K = 7 // 10240

    }
}

Best,

Jeff

I know that you have developed a RadBook, but only for Silverlight and WPF, which limits the visualization in devices in which it is not possible to install that plug-in or OS, so it would be good to have an HTML5 type control for ASP.NET UI with all the functionality of a Flip Book, and that the control can read a list of images, PDF, Office files, and other.

Thank you.

Some of the Red controls can be used for server side only (no UI).
I typically use RadGrid to perform something that it is good at (grouping and arranging data) then export it to Excel. 
So if the UI is actually and output file this can be very handy, why have a web interface if you are actually created a report of some kind.
You had a Reporting tool kit, but times have moved on to Self Service and PowerBI type tools. It just seems that you have a lot of code in DLL that could be repurposed for process pipelines, not for a web interface, tho  the final results could be reused there.

Add HLS live streaming support to the RAD Media Player.

One tool that can help with testing for the contrast ratio is ANDI.

• https://www.ssa.gov/accessibility/andi/help/install.html

 Related to https://feedback.telerik.com/aspnet-ajax/1476937-glow-skin-vista-skin-and-overall-any-links-in-the-grid-are-showing-as-blue-not-matching-what-it-has-earlier

From Admin: Share in this thread the most impactful contrast issue here, sharing the control and its setup, the skin and the exact elements that are failing the contrast test.

Hi Team,

I'm using Telerik.Web.UI Version 2020.2.617

I have integrated it and added a reference in my web application, asked me to upgrade the version of Assemblies "System.Web.Extension.dll" and "System.Core.dll" has to be upgraded to version 4.0, I did that too, Now I'm getting an error while I'm running or doing build "The type or namespace name 'Script' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)", Assembly it is referring to "System.Web.Script.Services", same error is coming for other attributes like "ScriptMethod, ScriptMethodAttribute"

For the Key word "this" it is throwing as below error

It is throwing an error for "System.Linq.Expressions"

Can anyone help me out on this how to resolve these bugs.

Regards

P L P Kumar

Editor is not maintaining the Format of text, specifically the bullet numbers, when copied from MS word. 

You can use the attached content to reproduce the problem in the Overview demo of the control.

I need a timeline AJAX component to "Visualize sequences of events in a user friendly manner" like this one in WPF : http://www.telerik.com/products/wpf/timeline.aspx

Do you plan to do that ?
Thanks

It will be nice to have a countDown control with all the client/server events and the suite skins, which will enable the developer to show a visitor with a timer to complete a task (like finsih a purchase with a guranteed price for few minutes) and call a web service when the timer got to zero, and show a message to the client (with integrated Notificatoin object) about the price (changed or staed the same etc.) and let the developer decide if he wants to start the timer again or not.

Thanks,
ilan.

How do I enable required field validation on a radcheckbox list item when it is part of a radwizard? I want to ensure that the user selects at least one item but when I hit the Next button to go to the next Wizard Step, it does not fire but proceeds to the next Wizard Step. Is this as designed?

Please provide assistance or some white paper article that can help.

I am using the "PostbackTriggers" property of the Upload control, as described on your web site article "How to Persist Uploaded Files".

This works well for the situation where I need a postback on a control, but that control is not a "submit" control.

The problem comes when I use one of the "submit" controls (listed in the PostbackTriggers property), but a server side validation error occurs, and the form data (including uploaded files) is NOT saved to the DB.  (This is a type of validation that can only be done on the server side.)  In that case, the upload control loses the uploaded file information.  Thus two questions:

1.   Is there a way on the server side to tell the control that an error has occurred, and to continue to persist the uploaded file information?

2.   Is there a way for the upload control to ALWAYS persist the uploaded file information until told on the server side that I have extracted the information I need from it?

Simple reproducible is attached to illustrate the problem.

A workaround may be replacing RadButtons that invokes such postbacks with regular buttons and using a form decorator

Alternatively, you can simply disable the handler URL encryption

You can also put the following in the global.asax file to prevent the version from rendering on the page markup
        protected void Application_BeginRequest(object sender, EventArgs e)
        {
			System.Web.HttpContext.Current.Items["_!TelerikVersionStampRendered"] = true;
        }
or you can add the same line in a global Page_Load handler (e.g., in a base page class or in the master page your project uses)

We recently went to address a vulnerability finding in our application whereby a user could exploit a vulnerability in the Telerik.Web.UI version 2015.3.1111.45.  Unfortunately after applying the patched version of this assembly, when running the exploit by calling [site root]/Telerik.Web.UI.DialogHandler.aspx?DialogName=DocumentManager&renderMode=2&Skin=Default&Title=Document%20Manager&dpptn=&isRtl=false&dp={xxxxxxx}. The page returns a response of:

An error will occur when the Index equals the number of items in the collection

private static ClientOperation<T> Remove(ControlItemCollection items, int index)
{
	if (index < 0 || index > items.Count) // should be >= instead
		return null;
	var item = items[index];
	items.RemoveAt(index);

	var operation = new ClientOperation<T> {Item = (T) item, Type = ClientOperationType.Remove};

	return operation;
}

Please create high contrast theme for people with disabilities.

The best colors are yellow and black and there should be two combinations: yellow on black and black on yellow.

Please look at attachements for very good example.

The new Flat skin for KendoUI is excellent and it would be great to have the same skin available for ASP.NET AJAX applications. I can see it being especially useful when faced with migrating older apps that use the AJAX controls over to Kendo.