Telerik blogs

Tag: Tutorial

  • Web

    Mouse Right Click, Double Click and Mouse Wheel in RadControls for Silverlight

    Telerik RadControls for Silverlight provide three routed events in addition to the Silverlight mouse events: MouseWheel, MouseDown and MouseUp. The latter two enable the developers to check for DoubleClick and RightClick in their applications. I will briefly show how to use this functionality: 1) MouseWheel: using Telerik.Windows.Input; ... Mouse.AddMouseWheelHandler(element, OnMouseWheel); ... private void OnMouseWheel(object sender, MouseWheelEventArgs args) { var delta = args.Delta; } .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; }   In most cases you just need to make a ScrollViewer to respond on the mouse wheel rotations. We implemented this in the ScrollViewerExtensions.EnableMouseWheel attached behavior, so you don't have to: xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls" <ScrollViewer telerik:ScrollViewerExtensions.EnableMouseWheel="true"> ... </ScrollViewer> .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; } NOTE: To successfully handle the mouse wheel events, the Silverlight plugin should be in windowless mode.   2) RightClick using Telerik.Windows.Input; ... Mouse.AddMouseUpHandler(element, OnMouseUp); ... private void OnMouseUp(object sender,...
    May 21, 2009
  • Web

    Applying Themes on RadControls for Silverlight

    The theme engine of RadControls for Silverlight is quite powerful and provides the developers with the ability to apply application-wide theme on all RadControls, as well as specific theme on a single control. If the theme does not contain the needed styles, the controls fallback to their default styles, so you could create an application theme for just a couple of controls and the rest will display with their default styles. We also provide styles for the standard controls, such as Button, CheckBox, RadioButton, etc. which enables you to create application with consistent look and feel. Each theme is distributed as...
    May 18, 2009
  • Web

    GridView in ComboBox with RadControls for Silverlight

    Recently we received several requests for an example, demonstrating how to put a virtualized GridView in a ComboBox popup. The best way to do this in my opinion is to replace the ItemsPresenter of the ComboBox with a GridView. There is some plumbing that has to be done, but I managed to separate it in two attached behaviors. The original idea is described in my blog post for TreeView in ComboBox which I recently updated with the latest control template of RadComboBox for Silverlight. The principle is exactly the same with RadGridView and it should work with very minor adjustments with...
    May 18, 2009
  • Web

    Executing JavaScript function from server-side code

    This is a pretty common scenario when working with WebForms. There are many ways to achieve the desired result, but they have one thing in common – you should make sure that the controls are fully loaded in the page before trying to get a reference to them and use them in your JavaScript code. In ASP.NET it is pretty straightforward to do that. For example you could use a label: ASPX <head runat="server">     <title>Untitled Page</title>     <script type="text/javascript">     function calledFn()     {         alert("code fired");      }     </script> </head> <body>     <form id="form1" runat="server">         <asp:Button ID="Button1" runat="server" Text="Run JavaScript Code" OnClick="Button1_Click" />         <asp:Label ID="Label1" runat="server"></asp:Label>    ...
    by Georgi Tunev
    May 05, 2009
  • Web

    Client - side events in JavaScript

    Below is a table of the most common client side events in JavaScript. The Table is divided into three columns – the first lists the name of the event. The second contains a short description of the event, and the third lists all page objects, which support the given event.                                          Event Name                Description  Supported by objects  onabort The onabort event occurs when loading of an image is aborted. image onblur The onblur event occurs when an object loses...
    by Iana Tsolova
    February 27, 2009
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