BT

C#/VB Parity in .NET 4

by Jonathan Allen on Apr 24, 2009 |

At the 2008 PDC, Microsoft promised language parity between Visual Basic and C#. What that means for .NET 4 was enumerated during the Lang.NET keynote (18 minute mark). Briefly, this is what you can expect to see.

New Features for both languages

  • Interop with Dynamic Languages
  • Co/contra-variance
  • PIA deployment not needed

New for VB 10, already available in C#

  • Auto-implementation of properties
  • Collection initializers
  • Statement lambdas

New for C# 4, already available in VB

  • Named/Optional Parameters
  • Latebinding support
  • Omit “ref” on COM calls

Unfortunately, two key features did not make the list. C# 4 will not be picking up XML Literals and VB will not have iterators.

Not mentioned were some smaller, but still needed, features such as allowing structures in optional parameters. The inability to declare an optional, nullable integer on a function makes making one-to-one mappings with stored procedures impossible. This was demonstrated for VB between sessions at the PDC.

Hello stranger!

You need to Register an InfoQ account or to post comments. But there's so much more behind being registered.

Get the most out of the InfoQ experience.

Tell us what you think

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Email me replies to any of my messages in this thread
Community comments

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Email me replies to any of my messages in this thread

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Email me replies to any of my messages in this thread

Discuss

Educational Content

General Feedback
Bugs
Advertising
Editorial
InfoQ.com and all content copyright © 2006-2013 C4Media Inc. InfoQ.com hosted at Contegix, the best ISP we've ever worked with.
Privacy policy
BT