CODEWITHSUNDEEP
.netc#-4.0
PaulB
PaulB

Reputation: 24372

How is the upcoming 'dynamic' keyword in .net 4.0 going to make my life better?

I don't quite get what it's going to let me do (or get away with :)

Upvotes: 11

Views: 642

Answers (3)

f3lix
f3lix

Reputation: 29879

There are some podcasts about the feature itself and how it can be used:

Upvotes: 0

Marc Gravell
Marc Gravell

Reputation: 1062502

The two big areas are:

  • working with COM assemblies where methods return vague types - so you can essentially use late binding
  • working with DLR types

Other uses include things like:

  • duck-typing where there is no interface
  • Silverlight talking to the host page's DOM
  • talking to an xml file.

In C# itself, this allows a few things, such as a basic approach to generic operators:

static T Add<T>(T arg1, T arg2) { // doesn't work in CTP
     return ((dynamic)arg1) + ((dynamic)arg2);
}

(of course, I'd argue that this is a better (more efficient) answer to this)

Upvotes: 5

CraigTP
CraigTP

Reputation: 44909

From Charlie Calvert's blog:

Useful Scenarios

There are three primary scenarios that will be enabled by the new support for dynamic lookup:

  1. Office automation and other COM Interop scenarios
  2. Consuming types written in dynamic languages
  3. Enhanced support for reflection

Read more here: http://blogs.msdn.com/charlie/archive/2008/01/25/future-focus.aspx

Upvotes: 5

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