Instantiating a delegate

[Peter]

Hi

in some example code I have seen delegates instantiated in the
following fashion:

public delegate string UserName(int id);


UserHelper helper = new UserHelper();

UserName un = new UserName(helper .GetUsername);


But I have found that the following also seems to work:

UserName un = helper.GetUsern ame;


Is this correct?



Thanks,
Peter

[Jeroen Mostert]

Re: Instantiating a delegate

Peter wrote:

in some example code I have seen delegates instantiated in the
following fashion:
>
public delegate string UserName(int id);
>
>
UserHelper helper = new UserHelper();
>
UserName un = new UserName(helper .GetUsername);
>
>
But I have found that the following also seems to work:
>
UserName un = helper.GetUsern ame;
>
>
Is this correct?
>

Yes, C# 2.0 made the compiler capable of inferring and automagically
instantiating the appropriate delegate type. Many people (and even Visual
Studio) still use the syntax from 1.0, but it's redundant.

--
J.

[Nicholas Paldino [.NET/C# MVP]]

Re: Instantiating a delegate

Peter,

From C# 2.0 and on it works. The compiler will basically expand the
delegate instantiation out for you. It's a shorthand that I find very
convenient.

- Nick

"Peter" <xdzgor@hotmail .comwrote in message
news:OEz2O7pQJH A.764@TK2MSFTNG P05.phx.gbl...

Hi
>
in some example code I have seen delegates instantiated in the
following fashion:
>
public delegate string UserName(int id);
>
>
UserHelper helper = new UserHelper();
>
UserName un = new UserName(helper .GetUsername);
>
>
But I have found that the following also seems to work:
>
UserName un = helper.GetUsern ame;
>
>
Is this correct?
>
>
>
Thanks,
Peter
>

[Peter Morris]

Re: Instantiating a delegate

I wish the automatic code completion (when you hit tab) would use the new
syntax. I really dislike the way it uses the old syntax!



--
Pete
====

http://mrpmorris.blogspot.com

http://www.capableobjects.com

[Peter]

Re: Instantiating a delegate

Peter wrote:

in some example code I have seen delegates instantiated in the
following fashion:
>
public delegate string UserName(int id);
>
>
UserHelper helper = new UserHelper();
>
UserName un = new UserName(helper .GetUsername);
>
>
But I have found that the following also seems to work:
>
UserName un = helper.GetUsern ame;

Thanks for the answers. In my naivety I had used the form:
UserName un = helper.GetUsern ame
without thinking about it - to me it seems natural.
It was only later I saw the "real" syntax.

/Peter