Telerik & Kendo UI Blog

I’ll be heading to Nashville, TN this August for DevLink 2009. And as if attending this great conference isn’t enough, they’re giving me a 3-hour time slot and room with a projector and everything. I guess that means I need to find something educational to impart to the those of you who will be in attendance. Good thing I’ve got the perfect session already planned out: ASP.NET AJAX Client Side Framework Deep Drive ASP.NET developers interested in creating rich, client-side web applications must develop a deep understanding of the ASP.NET AJAX client library. Join me as I show you how to...

As you probably know some of our controls support web service load on demand (a.k.a. client-side databinding). Also in ASP.NET MVC we can call controller actions via Ajax. In this blog post I will show you how to populate RadComboBox and RadTreeView on demand by using a controller action which returns JsonResult. Let's start with RadComboBox: Configure RadComboBox for Load on Demand I have added the RadComboBox control to the default Index.aspx view and configured it like this: <telerik:RadComboBox runat="server" ID="RadComboBox1" EnableLoadOnDemand="true" ShowMoreResultsBox="true" EmptyMessage="Type here ..." Height="200px"> <WebServiceSettings Path="Home" Method="LoadItems" /></telerik: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; } The important thing here is that RadComboBox is configured as if it were using a web service...

We have updated our MVC Forum sample application to use the official ASP.NET MVC 1.0, RadControls for ASP.NET Ajax Q1 2009 and the latest installment of Telerik OpenAccess ORM. Online demo | Download...

Starting from the Q3 '08 release, the jQuery library is an integral part of RadControls for ASP.NET AJAX. We've posted instructions on how to use the included version in your code and how to enable IntelliSense. The bad news is that the instructions for enabling IntelliSense no longer work with the Q1 '09 version. The reason is that Visual Studio 2008 has a problem with parsing the jQuery library from version 1.3 and up. This required us to come up with a new way to enable IntelliSense. The good news is that the new approach is much cleaner and doesn't require external...

If you are looking for a way to get up to speed on the latest technology, you should consider the devLink Technical Conference (www.devlink.net).  This event has been around since 2006, bringing hundreds of people the chance to learn and grow.  This is a full three day conference featuring industry experts talking about a variety of relevant topics for developers, architects, database administrators and even project managers.  You might think an event like this would cost $1000 or more, but you would be wrong.  As a matter of fact, the most amazing thing about devLink is the price.  At $100 a...

This Thursday (April 2, 2009), I will be presenting a webinar on the RadScheduler for WinForms.  I will demonstrating some of the features and benefits that you can see in the RadScheduler.    In this webinar, Telerik Evangelist John Kellar will introduce you to Telerik's RadScheduler for WinForms. Have you had a need to build scheduler functionality into your applications? If so, then this webinar is for you. The RadScheduler offers a variety of features like iCal support, multiple view options and an out of the box appointment dialogs.  John will provide an overview of RadScheduler and help you understand all...

Silverlight 3 Beta for developers was unveiled at MIX09 last week. We created a separate build of Telerik RadControls for Silverlight3. Download the bits here (it is available in your client.net account under Downloads > RadControls for Silverlight > Latest Internal Builds). There are no new features to the controls, only that they are compiled against the Silverlight 3 runtime. You can download the controls now and enjoy the latest features added to the Microsoft Silverlight3 platform. Please note that Silverlight3 is a developer beta release only! This means there is no “go-live” licensing available and the end-user runtime of Silverlight 3 is not available. If you have any feedback on what you would like...

During a recent webinar, a question was asked about whether you can create a half circle gauge.  I recently covered this in my “Introducing RadGauge for WPF” webinar, but thought it would be good to have a quick blog post as well.  Below you will see a RadialGauge which contains two RadialScales placed along the left and right of the gauge.  This is actually very easy to produce since the RadialGauge is simply a container, you can place a number of scales inside of the gauge.      Here is the XAML for the screenshot...

The XmlDataSource control is a data source control that presents XML data to data-bound controls. The XmlDataSource control can be used by data-bound controls to display both hierarchical and tabular data. The XmlDataSource control is typically used to display hierarchical XML data in read-only scenarios. Because the XmlDataSource control extends the HierarchicalDataSourceControl class, it works with hierarchical data. The XmlDataSource control also implements the IDataSource interface and works with tabular, or list-style, data.  Page developers use the XmlDataSource control to display XML data using data-bound controls. The XmlDataSource typically loads XML data from an XML file, which is specified by the DataFile property. XML data can also be stored directly...

I’m happy to announce two new episode of RadTips, a series of screencasts offering tips and tricks for using Telerik's RadControls. If you've missed previous episodes, be sure to check them out on Telerik TV. Each is only a few minutes long and covers a specific feature of the RadControls. Grouping with the RadGrid In this episode I show ASP.NET AJAX developers how to using the built-in grouping feature of the RadGrid. I start by demonstrating how you can enable dynamic grouping by setting just a couple of properties, allowing users to group data at runtime. Next I demonstrate how to...