What are 'closures' in .NET? -

what closure? have them in .net?

if exist in .net, please provide code snippet (preferably in c#) explaining it?

edit: went through jon skeet's article understand closures , how use them in .net.

i have an article on topic. (it has lots of examples.)

in essence, closure block of code can executed @ later time, maintains environment in first created - i.e. can still use local variables etc of method created it, after method has finished executing.

the general feature of closures implemented in c# anonymous methods , lambda expressions.

here's example using anonymous method:

using system;  class test {     static void main()     {         action action = createaction();         action();         action();     }      static action createaction()     {         int counter = 0;         return delegate         {             // yes, done in 1 statement;              // clearer this.             counter++;             console.writeline("counter={0}", counter);         };     } } 

output:

counter=1 counter=2 

here can see action returned createaction still has access counter variable, , can indeed increment it, though createaction has finished.