ASP.NET MVC improvement in Visual studio 2010

ASP.NET MVC was introduced as an add-on framework to ASP.NET 3.5 SP1 in March 2009. Visual Studio 2010 will include a preview of ASP.NET MVC 2. When Visual Studio 2010 ships, it will include the RTM version of ASP.NET MVC 2. The version of ASP.NET MVC 2 that is included in ASP.NET 4 Beta 2 includes new features and capabilities.

Areas Support

Areas let you group controllers and views into sections of a large application in relative isolation from other sections. Each area can be implemented as a separate ASP.NET MVC project that can then be referenced by the main application. This helps manage complexity when you build a large application and makes it easier for multiple teams to work together on a single application.

Data-Annotation Attribute Validation Support

DataAnnotations attributes let you attach validation logic to a model by using metadata attributes. DataAnnotations attributes were introduced in ASP.NET Dynamic Data in ASP.NET 3.5 SP1. These attributes have been integrated into the default model binder and provide a metadata-driven means to validate user input.

Templated Helpers

Templated helpers let you automatically associate edit and display templates with data types. For example, you can use a template helper to specify that a date-picker UI element is automatically rendered for a System.DateTime value. This is similar to field templates in ASP.NET Dynamic Data.

The Html.EditorFor and Html.DisplayFor helper methods have built-in support for rendering standard data types as well as complex objects with multiple properties. They also support basic customization of rendering by letting you apply data-annotation attributes like DisplayName and ScaffoldColumn to the ViewModel object.

Often you want to customize the output from UI helpers even further and have total control over what is generated. The Html.EditorFor and Html.DisplayFor helper methods support this using a templating mechanism that lets you define external templates that can override and control the output rendered. The templates can be rendered on a per-class basis.

From: http://aspnetmvc.info/wp/2009/09/asp-net-mvc-improvement-in-visual-studio-2010/ Posted in: General asp.net | Tags: .net 4.0 mvc visual studio visual studio 2010 asp.net mvc framework data annotation attribute validation support html.editrofor displayname vewmodel

Visual Studio 2010 Web Designer Improvements

The Web page designer in Visual Studio 2010 has been enhanced for greater CSS compatibility, includes additional support for HTML and ASP.NET markup snippets, and features a redesigned version of IntelliSense for JScript.

Improved CSS Compatibility

The Visual Web Developer designer in Visual Studio 2010 has been updated to improve CSS 2.1 standards compliance. The designer better preserves integrity of the HTML source and has greater overall robustness than in previous versions of Visual Studio. Under the hood, architectural improvements have also been made that will better enable future enhancements in rendering, layout, and serviceability.

HTML and JScript Snippets

In the HTML editor, IntelliSense auto-completes tag names. The IntelliSense Snippets feature auto-completes entire tags and more. In Visual Studio 2010, IntelliSense snippets are supported for JScript, alongside C# and Visual Basic, which were supported in earlier versions of Visual Studio.

Visual Studio 2010 includes over 200 snippets that help you auto-complete common ASP.NET and HTML tags, including required attributes (such as runat="server") and common attributes specific to a tag (such as ID, DataSourceID, ControlToValidate, and Text).

You can download additional snippets, or you can write your own snippets that encapsulate the blocks of markup that you or your team use for common tasks.

JScript IntelliSense Enhancements

In Visual 2010, JScript IntelliSense has been redesigned to provide an even richer editing experience. IntelliSense now recognizes objects that have been dynamically generated by methods such as registerNamespace and by similar techniques used by other JavaScript frameworks. Performance has been improved to analyze large libraries of script and to display IntelliSense with little or no processing delay. Compatibility has been dramatically increased to support nearly all third-party libraries and to support diverse coding styles. Documentation comments are now parsed as you type and are immediately leveraged by IntelliSense.