Missing templates in Visual Studio 2010







It happens sometimes that Visual Studio installed templates are missing. To add missing templates, first, close all instance of Visual Studio and then type the following command on visual studio command prompt:

devenv /installvstemplates

Press Enter. Let the process be complete and then open visual studio. You will get all missing templates under Visual Studio installed templates.

Roslyn CTP

What is Roslyn?

Microsoft compilers have been always acting as black boxes. You provide the source text in and out the other end, you receive an assembly. All of that rich knowledge and information that the compiler produces is thrown away and unavailable for anyone else to use.

Visual Studio team has recently been working on a project called Roslyn with a goal to rewrite the C# and VB compilers and language services in managed code. This means that Microsoft is opening up the C# and Visual Basic compilers and exposing all that rich information and code analysis to be available for the software developers. Microsoft exposes a public API surface and provide extension points in the C# and VB language services. This opens up new opportunities for VS extenders to write powerful refactorings and language analysis tools, as well as allow anyone to incorporate Microsoft parsers, semantic engines, code generators and scripting in their own applications.
The Community Technological Preview (CTP) version can be downloaded from Roslyn CTP

Getting Started

After installing the Roslyn CTP, the best place to start is to open Start Menu -> Microsoft Codename Roslyn CTP -> Getting Started.
The CTP ships with quite a few samples for Visual Studio Extensions, compiler API, code issues, refactorings and so on. Most of the samples are provided for both C# and Visual Basic. You can open the sample source code from the Getting Started page.
In addition, several new project templates are available in the New Project dialog:

You can run scripts using the new rcsi.exe, which installs into %ProgramFiles(x86)%\Microsoft Codename Roslyn CTP\Binaries\rcsi.exe. You can add rcsi.exe to the path and then type rcsi .csx.
You can also copy chunks of code from a script file and send them to the C# Interactive Window (using the right-click context menu or a keyboard shortcut).

Visual Studio 2010 and HTML5

Visual Studio 2010 was originally released without HTML5 support, but VS 2010 SP1 supports HTML5 to some extent. The entire HTML5 specification is not supported but most of the new elements and attributes are. That means you get both intellisense and validation for HTML5 with SP1.

How to turn it on?

After installing SP1 you have to tell Visual Studio to start using the HTML5 schema. Go to Tools -> Options, and then select Text Editor -> HTML -> Validation. You should now be able to select HTML5 or XHTML5 as the target schema or if you have the HTML Source Editing toolbar enabled, you can select it in the target schema dropdown.


In SP1 there are a few improvements in the CSS3 support as well, though not as elaborate as with HTML5. The editor now supports the more advanced selectors such as div:nth-child(2n+1) without giving validation errors and the new color values rgba, hsl, hsla and 8 digit hex values are also supported.
Therefore, with Visual Studio today, you can build HTML5 and CSS3 web applications on top of ASP.NET, and with SP1 Microsoft has made it a lot easier for you. All ASP.NET developers are encouraged to start taking advantage of what HTML5 and CSS3 has to offer already today. The Web Platform and Tools team takes web standards very seriously and everybody will see much better support for HTML5 and CSS3 in the future.

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