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The Telerik and Kendo UI 2024 Q1 Release Is Here—See What’s New!

by Iva Borisova February 07, 2024 7 min read

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  • Web ASP.NET MVC

    Telerik Extensions for ASP.NET MVC – Troubleshooting

    Wow it has been a busy release! I am glad that we managed to release our first home-grown UI extensions for ASP.NET MVC. I hope you like them and please, please share your feedback in the forum.   In this blog post I will highlight the most common problems you may encounter while using the extensions and their solutions. Here we go: The control renders fine but its client-side features do not work The most common reason is that there is no ScriptRegistrar or it is placed before the UI components. It is mandatory that you add a ScriptRegistrar because the UI components require it...
    by Atanas Korchev
    May 27, 2021 2 min read
  • Web

    Data-binding Telerik CoverFlow for Silverlight + some Routed Commands goodness

    With our still hot Q3 2009 release we introduced a brand new RadCoverFlow control, that was rewritten from scratch in order to be able to exploit some new features in Silverlight 3 that improved both its performance and appearance. We are now using matrix projections to transform the items’ content and pixel shader effects to render the reflection. This allows us to show and properly transform any element in RadCoverFlow, including UI Elements, controls and video, as well as instantly synchronize the reflection. This major change in the control caused major changes in its API and usage patterns. We provide some...
    May 27, 2021 7 min read
  • Web ASP.NET MVC

    Using T4MVC strongly-typed helpers with Telerik Extensions for ASP.NET MVC

        If you want fast and strongly-typed access to your controller actions, the T4 helpers by David Ebbo are a real treasure. Since we couldn’t provide an support for them out-of the box (after all, the helper classes are generated), here is a small extension method that allows their usage as shown in the screenshot above.   using System.Web.Mvc; using Telerik.Web.Mvc; using Telerik.Web.Mvc.Infrastructure; using Telerik.Web.Mvc.UI; public static class NavigationItemBuilderExtensions { public static NavigationItemBuilder<TItem, TBuilder> Action<TItem, TBuilder> (this NavigationItemBuilder<TItem, TBuilder> instance, ActionResult action) where TItem : NavigationItem<TItem> where TBuilder : NavigationItemBuilder<TItem , TBuilder>, IHideObjectMembers { ...
    by Alexander Gyoshev
    May 27, 2021 1 min read
  • Web ASP.NET AJAX

    New content providers for the RadEditor and RadFileExplorer controls

    The default content provider, that ships with the editor and file explorer controls will only work with files in the current web application. Naturally, there are scenarios where you wish to show files that are not physically in the application folder. The provider model allows you to do just that - you can either customize the existing provider (FileSystemContentProvider) or write a completely new one (FileBrowserContentProvider). We recently went through the forums and noted what custom providers are most frequently used with the RadEditor and RadFileExplorer controls. After that we created sample providers for those scenarios and posted them as support...
    by Iana Tsolova
    May 27, 2021 1 min read
  • Web

    Virtualized Telerik ComboBox for Silverlight

    In some scenarios it is required to load thousands of items in a ComboBox. Since by default the control creates RadComboBoxItem containers for each data item, it might take some time to open the drop-down. To resolve the problem you only need to change the RadComboBox ItemsPanel with VirtualizingStackPanel: <telerikInput:RadComboBox> <telerikInput:RadComboBox.ItemsPanel> <ItemsPanelTemplate> <VirtualizingStackPanel /> </ItemsPanelTemplate> </telerikInput:RadComboBox.ItemsPanel> </telerikInput:RadComboBox> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   thus making the drop-down to open instantly. Attached is a simple application that loads 1000 items in two RadComboBox controls, one virtualized, the other – not virtualized. The difference between the two controls is visible and becomes much larger if you create 100,000 items! VirtualizingComboBox I hope this helps....
    May 27, 2021 1 min read
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