To present a complicated column structure on a limited screen width currently need to resort to template columns. DevExpress web grid has an excellent feature called Bands that does it automatically. RadGrid urgently needs this functionality as well. Without CSS and javascript tricks, thank you...

Label position dynamic. I'm currently using "InsideBase", but if those values are so small it's not very visible, so i'd like place those on the outside end.

Add a Marimekko chart type to charts (HTML5). Similar to this one:
http://www.fusioncharts.com/demos/gallery/#marimekko-charts

Allow RadGantt to export the data to Excel

We are using List box item scroll into view to scroll to the item selected in the list box. However, the scroll is not working in the Chrome browser in a UHD touch screen laptop device.

The SearchRow in RadGridView WinForms is extremely good.

https://docs.telerik.com/devtools/winforms/controls/gridview/rows/search-row 

How can we implement the same in ASP.Net Ajax RadGrid?

Would be incredibly handy if we could programmatically set the image to a byte array with the RadImageTile (or I guess RadImageAndTextTile). Right now you can only set it via the ImageURL but we don't want to store the image like that, we want to read the image from the DB, so we're reading it out as a byte array.

This is possible in your RadBinaryImage, I think, but not in the RadImageTile. 

RadNavigation can be setup to expand on hover (see demo - http://demos.telerik.com/aspnet-ajax/navigation/functionality/expand-on-hover/defaultcs.aspx).

However, when the menu is collapsed to the More (hamburger) menu this functionality is lost. If the nodes don't have a navigate url they can be clicked to open the sub menu, but if they are set to navigate then clicking will navigate instead of opening the submenu.

Add ability to define Telerik specific ConfigSectionHandler for their settings like others (e.g.,log4Net) do.

This makes configuring environments much easier. All I need to do is point to *.Dev.config, *.Stage.config and my application is ready for the new environment.


For example, the following settings:

<configuration>
  <configSections>
    <section name="myConfigSection" type="CurrentApp.ConfigurationSectionHandler, Current" />
  </configSections>
  <myConfigSettings configSource="App_Data\Configs\MyConfigSection.config" />
  <appSettings>
    <add key="Environment" value="Local.Local"/>
...
    <add key="Telerik.ScriptManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.ScriptManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.CombinedScript" value="Enabled" />
    <add key="Telerik.Skin" value="Bootstrap" />
    <add key="Telerik.StyleSheetManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.CombinedResource" value="Disabled" />
    <add key="Telerik.Web.UI.StyleSheetFolders" value="~/Content/; ~/" />
...
  <appSettings>
<configuration>


can be changed to:

<configuration>
  <configSections>
    <section name="telerikSettings" type="Telerik.ConfigurationSectionHandler, Telerik" />
  </configSections>
  <appSettings configSource="App_Data\Configs\Local.config" />
  <telerikSettings> <!-- This section does not exist and the keys are currently inside the local.config file -->
    <add key="Telerik.ScriptManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.ScriptManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.CombinedScript" value="Enabled" />
    <add key="Telerik.Skin" value="Bootstrap" />
    <add key="Telerik.StyleSheetManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.CombinedResource" value="Disabled" />
    <add key="Telerik.Web.UI.StyleSheetFolders" value="~/Content/; ~/" />
  </telerikSettings>
...
</configuration>


or directly point to external configuration file:

<configuration>
  <configSections>
    <section name="telerikSettings"
             type="Telerik.ConfigurationSectionHandler, Telerik" />
  </configSections>
  <appSettings configSource="App_Data\Configs\Local.config" />
  <telerikSettings configSource="App_Data\Configs\Telerik.config" />
...
</configuration>

RadCodeBLock and RadScriptBlock is not able to handle the server tags for all case scenarios, hence RadAjaxManager throws the exception mentioned in the title.

Add the Pan and Zoom feature found in HTMLChart to Gannt. 
#1 This allows the project timelines to be zooned into and out of on the Right Hand Side, and on the Left Hand Side zoom into the 'bill of material' that makes up a Milestone to just milestone view.
#2 The Pan allows you to sweep along a long gantt chart, across days in a year. On a tablet you can just flick to the left and right to see what jobs you have on.

How can we plot planned Vs Actual on RadGantt chart? We need two rows in the Gantt for each task. The first row to show planned while the second row shows actual progress. Both Actual and Planned progress to be shown in different colors.

Sample output is attached for your quick reference.

I am migrating Excel Documents into Line of Business application into web pages. 
Which means everything excel can do, my client expect the telerik controls to do!
On either a RadGrid or RadGantt  I would like to be able to rotate the headings just like in Excel. 
An example is a heading like 'Days' but the actual value in that column is no bigger than 99.  
Another example if that the heading has a question, and the cell a check box.

Add option to move each highlighted item to the top (while searching), even if it is found outside of the visible part of the drop-down. The current behavior is to show the highlighted item at the bottom of the dropdown.

Ref. attached Image its show horizontal scrolling round with red color.

In business application more number of groups and menu item at that time horizontal scrolling very usefull as shown in the attached image

It will be helpful if we have import mpp (MS Project file) option instead of XML, this will ease users and they don't need to convert file to xml and than upload.
This is already done by other providers like bryntrum and i think it is a must as customers are suffering with export to xml and upload.

Hope telerik applies this suggestion!

It will be possible to edit the content of shapes and connections of RadDiagram by interacting with them.

RadMediaPlayer provides built-in integration with Facebook urls from sql table.

In some cases, inside the Grid table, the tfoot element is rendered before the tbody element. This causes some readers to read the footer before the body. 

A possible workaround is moving the tfoot after the tbody in the OnGridCreated event:

function OnGridCreated(sender, args) {
    var $ = $telerik.$;
    $('tfoot').each(function (index, item) {
        debugger
        var $item = $(item);
        var $next = $item.next();
        if ($next[0]) {
            if ($next[0].tagName.toLowerCase() == "tbody") {
                debugger
                $item.insertAfter($next);
            }
        }
    });
}
 
A forum discussion on the topic: 
Any way to change the order in which RadGrid renders THEAD, TBODY, and TFOOT?