Tag: Development

Community

Inside the DLR – Callsites

(Simon Cooper) The DLR was introduced in .NET 4 to allow dynamic languages, like Python or Ruby, to run on the CLR. The DLR is also used by C# 4, released at the same time, to implement dynamic binding via the dynamic keyword. In this post, I’ll be looking at what exactly happens when you issue a dy

Community

Validation In Razor Web Pages 2

(Mike Brind) The new release of ASP.NET Web Pages – version 2 – doesn’t include many obvious changes, but the most significant one is an enhanced Validation system. A couple of new classes have been introduced, and Web Pages validation now works with the MVC Unobtrusive jQuery validation library. Th

Community

The HTML5 Drag and Drop API

(Dan Maharry) Internet Explorer 4 first introduced JavaScript support for drag-and-drop functionality for web pages. At the time, only two items on a web page could initiate a system drag: an image or some text. When dragging an image, you simply held the mouse button down and then moved it; with te