Short version:  needed for IE browsers and overlaying external plugins such as PDF

To overlay external content such as PDF in some browsers, we need just Z-index. In other, we need an iframe inside the overlay.

Per DISA security hardening requirements, unlisted file extensions should be filtered in URL requests as seen in the following DISA STIG: http://www.stigviewer.com/check/V-26046

To do this, the Telerik UI for ASP.NET AJAX must publish extensions that are used in the libraries.  Without the extensions being published, it is not possible to implement this hardening requirement since the application will not function properly due to the unknown extensions being blocked.  Please publish the library extensions being used so that the hardening setting to filter unlisted file extensions can be turned on.  If this cannot be done, please identify the reasoning so that a deviation from the hardening requirement can be approved by the security team.

Currently RadSplitter, RadWindow and RadDock (there might be other Telerik controls) apply default FontFamily and FontSize to their wrapper elements which is applied to the client's content as well.

Modifying client's content in any way is not correct behavior for layout and/or container control.

Currently, controls that have popups can have their z-index controlled as explained here: http://www.telerik.com/help/aspnet-ajax/controlling-absolute-positioning-with-zindex.html

RadComboBox has an explicit ZIndex property. Should all controls with popup elements have such a property?

It would be nice if all dropdown list controls (dropdownlist, radcombobox, etc) had a built-in "x" button somewhere which allowed the user to clear the selection of an item (ie set its selectedIndex to 0).

Clicking on the "x" would also fire the client-side and server-side (if applicable) SelectedIndexChanging and SelectedIndexChanged events.

It would be great to have a facebook-like auto expanding textbox with character counter.

One should be able to use CDN without having the Telerik.Web.UI.Skins dll deployed to the server..

I see a lot of forum chatter, blog and code library pieces, for years now, about DblClick.
Like in the RadGrid, TreeView, TreeList, Combo, DropDownList, DropDownTree, etc. 
Why not implement this standard in the controls; ItemDblClick, RowDblClick server side in Grid for ie.

Currently Telerik RadGrid does not support a GridCalculatedColumn inside a GridTemplateColumn. GridCalculated Column is a veru useful feature and should be available inside a Template column as well.

Thanks

An ArgumentOutOfRange exception is thrown when using a horizontal barchart with AutoLayout = true.

[ArgumentOutOfRangeException: Length cannot be less than zero.
Parameter name: length]
   System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) +10695301
   System.String.Substring(Int32 startIndex, Int32 length) +10
   Telerik.Charting.TextBlock.get_VisibleText() +194

Currently, if a RadWindow is maximized, then minimized, then restored it will get the dimensions it had before maximizing. A window in the OS will maximize if it had been maximized prior to minimizing and the RadWindow should have the same behavior.

The SlidingZone's tabs titles are rendered upside-down in all browsers in Sharepoint 2010 (except for Internet Explorer). The problem is caused due to a thrown JavaScript error:
Uncaught TypeError: Cannot read property 'removeChild' of null

I'd like to use the Navigation widget in "Horizontal with drop down menus" mode but the "mouse over" mode doesn't work with touch devices (iPad) and the click option is OK but I still want the "Hover" option for non touch devices.

When many RadHtmlCharts are present on the page (especially if their animation is turned on) this will decrease the rendering performance of the browser, especially in older browsers that are generally slow. 

The ability to start rendering one chart only after the previous one finishes rendering will improve this initial load.

This can be used only for animations to provide a visual queue (i.e. only have effect when Transitions=true).

Both properties could be used in scenario when the control is bound with WebService. With assigning values directly to the aforementioned properties, you could omit specifying the Text and Value fields in the WebService, but only point the desirable parameters in the declaration of the control.

This could be very useful, especially when a custom class is used to populate the control in the WebService and if this class does not possess Text and Value fields.

Hallo Collegue,
It is possible to export only some columns of RadGrid to excel?

thanks,

J.Matouš