Telerik blogs
  • Web ASP.NET AJAX

    Uploading Multiple Files with RadUpload

    Hello Everyone, my name is Rosi and I am a developer on the ASP.NET navigation controls team. This is my first blog post and I will be talking about the RadUpload component.  Many customers have asked how to upload multiple files with it. Unfortunately RadUpload does not yet support this functionality out of the box, but I will show you how to work-around this limitation. The trick is uploading one  .zip file and extracting it on the server.  To achieve this we will need a little help from a third party library.  Such libraries are  DotNetZip and SharpZipLib which provide a convenient API to manipulate .zip files.  For the purposes of this blog post...
    June 19, 2008
  • Web ASP.NET AJAX

    How To Override Styles in a RadControl for ASP.NET AJAX' Embedded Skin

    In the era of the "classic" RadControls for ASP.NET modifying a skin required opening ~ / RadControls / [ControlName] / Skins / [SkinName] / styles.css and making the necessary changes. The new RadControls for ASP.NET AJAX (formerly known as "Prometheus") by default use skins, which are embedded in the assembly. This simplifies deployment but sacrifices customization. Or does it? Actually, making a change to an embedded skin of a RadControl for ASP.NET AJAX is quite easy, given that one keeps in mind a couple of notable things. Namely: (1) Since the embedded skin cannot be modified, the custom styles need to be placed elsewhere. For example ...
    June 17, 2008
  • Web ASP.NET AJAX

    Introducing: the telePhone

    After digging around in Telerik's old Visual Source-Safe server, I found a long-forgotten prototype of a RadMenu skin. I felt the urge to disclose it to you, and hope that you will like it. the telePhone prototype On second thought, this initial draft looks good enough, so we might switch to hardware production. Don't be evil, we were first! Maybe we could even go 3G... Ok now, getting serious - you could use this sort of menu for navigating when there is a large hierarchy in the site navigation (or, to be more specific, a hierarchy that has a wide tree). Currently, no...
    June 13, 2008
  • Release

    Ever needed a demo using RadControls for ASP.NET AJAX using the Q1 2008 RadControls suite?

    I visited DevConnections in Orlando about a month ago. There my colleague Todd Anglin and I held a vendor session called "Developing Rich, Responsive Applications using Telerik RadControls for ASP.NET AJAX". My team had prepared a demo for the vendor session - and we have 3 major goals when we started implementing it: We wanted to keep the code to a minimum (which I think we managed quite nicely). Most of the about 200 lines of server code are related to database queries, and the client-side only uses about 40 lines of code. We wanted it to be real life and do...
    June 10, 2008
  • Web

    The difference between ID, ClientID and UniqueID

    I this post I will try to explain the difference between those three commonly used properties. Each property is described in a separate section. Attached you can find a sample web site as well as two screenshots visually depicting the difference between the ID, ClientID and UniqueID properties. The ID property is used to assign an identifier to an ASP.NET server control which can be later used to access that control. You can use either the field generated in the codebehind or pass the value of the ID property to the FindControl method. There is a catch though - the ID property is...
    June 06, 2008