Telerik blogs
  • Web

    Web Resources demystified: Part 2

    “Why is my page sprinkled with links to webresource.axd?” By default RadControls (both “Classic” and “Prometheus”) utilize Web Resources to embed external files. By external files I mean the following: JavaScript files – they contain the code implementing the client-side features of the controls CSS files –they define the visual appearance of the controls Images –various GIF, JPG or PNG files used by the CSS files RadControls "Classic" embed all JavaScript files and the default skin (thoughtfully named "Default"). If you use any other skin or create your own it will be served from the location specified via the SkinsPath property ("~/RadControls/<ControlName>/Skins" by default). Reducing the number...
    February 28, 2008
  • Release

    Dude, where are my controls?

    Hi all, First of all let me introduce myself. My name is Rosen Konstantinov and I’m a developer at one of Telerik’s ASP.NET teams. A few days ago, while working on updating our Prometheus RadAjaxManager’s design-time property builder for Microsoft’s VS2008, I came across something strange.  Some of you know that RadAjaxManager’s property builder lets you choose which of the control(s) on the design surface should be updated during an AJAX call.  This is done by iterating over the controls collection and populating two TreeView controls.  Properties Builder in VS2008 However, if placed inside the MasterPage’s ContentPlaceHolder, controls are not visible...
    February 27, 2008
  • Web

    Web Resources demystified: Part 1

    Every now and then I see people asking one of the following questions: “What is a web resource?” “Why is my page sprinkled with links to webresource.axd?” “Why are my JavaScript and CSS files not cached?!” “Why do all requests to webresource.axd fail with 404 or 500?” I will try to answer them in a series of blog posts. I will also give some details what web resources are, how they work and what are they good for. Web Resources 101 Web Resources are files which are embedded in an assembly. The WebResource.axd HTTP handler loads them and serves them to the browser. Web Resources were introduced in ASP.NET 2.0....
    February 27, 2008
  • Web ASP.NET AJAX

    Squeezing the last millisecond from the page load time

    Hi, my name is Erjan Gavalji. I am a developer in the ASP.NET division at Telerik. I am new to blogging, but I hope the topics I present will be of a real use. RadControls for ASP.NET provide rich client-side functionality and nice look trough a number of external files - JavaScript code and CSS definitions. Those resources are registered through <script> or <link> tags and are downloaded by the browser. Part of the client-side code in RadControls “Prometheus” is shared between all controls. It is contained in a different file to prevent downloading it multiple times when several controls coexist in a...
    February 14, 2008
  • Release

    New online resources for the past two weeks (01/21/2008 - 02/01/2008)

    Below is a summary of the new online resources available for our ASP.NET/WinForms controls:  ASP.NET RadAjax Prometheus Help topics Error handling for Ajax requests: http://www.telerik.com/help/radcontrols/prometheus/?ajxErrorHandling.html Controls not compatible with RadAjax Prometheus: http://www.telerik.com/help/radcontrols/prometheus/?ajxControlsNotCompatible.html RadTreeView Prometheus Code library entries Populating RadTreeNodes on demand via WCF Service: http://www.telerik.com/community/code-library/submission/b311D-bcaeek.aspx 
    February 08, 2008