C#4.0 New Features List
Posted On Saturday, May 23, 2009 at
at
9:46 AM
by Unknown
Dynamic types: is a feature which gives you a ability to skip static type checking (compile time type checking) and resolves the type at run time for the following functions.
1: Method
2: Operator
3: Indexers
4: Property
5: Field Access
6: Object Invocation
Named and optional parameters: Till now C# had no option of having optional parameters but now in C#4.0 , we can pass the optional parameters by giving them some default values like
public long addNumbers(int number1 , int number2 , long pi = 3.14){
return number1+ number2+ pi ;}
There is new option of passing the parameters by Name like
Call the above given functions as
long result = addNumbers(number2=4 , number1= 5);
Variance : In C# 3.0 , it was used to be IEnumerable and it was not allowed to be used as IEnumerable. But now in C#4.0 , co and contra-variance can be used .
In Next post, i am going to discuss the dynamic type in detail.
Till than Happpy Coding.
1: Method
2: Operator
3: Indexers
4: Property
5: Field Access
6: Object Invocation
Named and optional parameters: Till now C# had no option of having optional parameters but now in C#4.0 , we can pass the optional parameters by giving them some default values like
public long addNumbers(int number1 , int number2 , long pi = 3.14){
return number1+ number2+ pi ;}
There is new option of passing the parameters by Name like
Call the above given functions as
long result = addNumbers(number2=4 , number1= 5);
Variance : In C# 3.0 , it was used to be IEnumerable
In Next post, i am going to discuss the dynamic type in detail.
Till than Happpy Coding.
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C#
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