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  • Web ASP.NET AJAX

    Say hello to RadControls Prometheus Futures

    I am glad to announce that we have just released a "Futures" version of RadControls Prometheus. Why "Futures"? I will tell you in detail below, but those of you who are anxious to get their hands on the latest release, can download it from here: http://www.telerik.com/community/forums/thread/b311D-mhkha.aspxWhat's new in the "Futures" release? The highly anticipated RadScheduler. Those of you who had the chance to visit our TechEd booth may have already seen it. For those who haven't - here is a link to the online examples: http://www.telerik.com/demos/aspnet/prometheus-futures/Scheduler/Examples/Default/DefaultCS.aspxKey features: Day, Week and Month View Inline and Advanced editing of appointments Custom resources Recurring appointments Rich client-side behavior The RadScheduler...
    July 05, 2007 3 min read
  • Web

    Unwanted GET requests with latest IE and FireFox in case of empty img.src, script.src and link.href

    If you create or declare img and script element with empty src attribute or link element with empty href attribute you will receive unwanted GET request with latest FireFox. The problem with img elements exist even in IE 6/ IE 7 however the request will be to the application root. You can check all these using this simple example:<%@ Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">    protected void Page_Load(object sender, EventArgs e)    {    }</script><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server">    <title>Untitled Page</title>    <script src=""></script>    <link href="" /></head><body>    <form id="form1" runat="server">        <img src="" />        <div>        </div>    </form></body></html>You should be extra careful...
    July 03, 2007 1 min read
  • Productivity

    Visual Studio island in Second Life

    It looks like Microsoft is investing in Second Life and soon several events will take place on the Visual Studio island they're building.This news isn't sensational but I like the idea.A...
    June 29, 2007 1 min read
  • Release

    RadMediaPlayer for Silverlight CTP is now live!

    We are very happy to announce the official CTP of “RadControls for Silverlight” suite. Telerik is the first control vendor to give you a real Silverlight 1.0 controls which you can play with and use in your web pages. Those of you who signed up through the CTP registration form have already received the bits. For those of you who missed the registration – it is still open. The controls in the suite target Silverlight version 1.0 Beta. The official version of Silverlight 1.0 is expected this summer. So what do you need in order to use the controls? Nothing special really -...
    June 27, 2007 2 min read
  • Web

    An HTML drawing master :-)

    I just came across something amazing... and this is not fake, this is real - you can check the actual...
    June 26, 2007 1 min read
  • Web

    Never access the controls collection in Page_Init or Page_PreInit with declarative data-binding in ASP.NET 2.0

    If you have a GridView, DataGrid, DetailsView, FormView, DataList or Repeater bound using DataSourceID you should never touch the controls collection in Page_Init or Page_PreInit. If you do this your declarative data-binding will be lost on any outside of the control post-back. How to check this?Example:aspx<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server">    <title>Untitled Page</title></head><body>    <form id="form1" runat="server">        <asp:Button ID="Button1" Text="Button1" runat="server" />        <asp:GridView ID="GridView1" AllowPaging="true" DataSourceID="AccessDataSource1"            runat="server">        </asp:GridView>        <asp:DetailsView ID="DetailsView1" DataSourceID="AccessDataSource1" AllowPaging="true"            runat="server">        </asp:DetailsView>        <asp:FormView ID="FormView1" DataSourceID="AccessDataSource1" AllowPaging="true"            runat="server">            <ItemTemplate>                ProductID :                <%# Eval("ProductID") %>            </ItemTemplate>        </asp:FormView>        <asp:DataList ID="DataList1" DataSourceID="AccessDataSource1" runat="server">            <ItemTemplate>               ...
    June 25, 2007 1 min read
  • Web ASP.NET AJAX

    Firewalls breaking ASP.NET AJAX!

    This one is serious and may bite you any time. Yesterday Shaun posted this problem in our forums: he and his users were experiencing odd errors when requesting ASP.NET AJAX-based sites, and yes, that means RadControls "Prometheus" based ones as well. Partial rendering requests initiated by UpdatePanel controls failed with the cryptic message: ============== Sys.WebForms.PageRequestManagerParserErrorExeption: The message received from the server could not be parsed.  Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.  Details:  Error parsing near '<!DOCTYPE html P''. ============== Of course all that comes without any trace of Response.Write(),...
    June 25, 2007 2 min read
  • Mobile

    Using RadEditor as a Wiki Editor in MOSS

    There have been a number of questions, regarding the RadEditor for MOSS and whether it is possible to use it in the SharePoint 2007 Wiki libraries and sites. The short answer to this question is - yes it's possible. Here is the long version: Wiki pages in MOSS 2007 are stored as normal document libraries. This means that when you edit a Wiki page, you are actually editing a list item. RadEditor for MOSS  supports this scenario and you can use it to replace the default editor in all major browsers - Internet Explorer, Firefox, Safari, etc. Here is how...
    June 22, 2007 2 min read
  • Release

    RadControls for Silverlight June CTP. Registration now open!

    You can now register for the CTP release of our Silverlight controls and you'll soon receive an e-mail with instructions about where you can download the installation. The controls are using Silverlight 1.0 so all you need to have installed is the Silverlight 1.0 plugin and Visual Studio 2005 or Visual Studio Orcas Beta 1.We've added a MediaPlayer control to the set of controls with which you may have already got acquainted from our online examples. Some of the cool features of the MediaPlayer control which you also may find intriguing are:- Coming with three predefined themes: Telerik, Vista and Simple- Support for...
    June 22, 2007 1 min read
  • Release

    New online resources for the past two weeks (06/18/2007 - 07/01/2007)

    Below is a summary of the new online resources available for our ASP.NET controls: RadGridCode library entries: Filter RadGrid on external textbox key press:http://www.telerik.com/community/code-library/submission/b311D-mtkce.aspx Help topics: Insert/Update/Delete records -> How-to -> Put all items in edit mode without additional rebind (not published yet)
    June 22, 2007 1 min read