C# newbie

[Guest]

Hi,
if a funcion/defines is defines as follows

new private void Page_Load(object sender, System.EventArgs e)
{

}

is it C++ operator new?

thxs
newbie

 

[Martin Eyles]

new is a C# keyword, but you don't use it when you define your
method/function/subroutine. You should use what you have without the "new".

If you make objects, then you will use new to instantiate them, and new
behaves like c++ then.

 

[Kevin Spencer]

new is a C# keyword, but you don't use it when you define your

method/function/subroutine. You should use what you have without the
"new".

Not exactly. Actually, the "new" modifier in C# can be used in a method
definition, field definition, property definition, or nested class
definition, to hide ("Shadow" in VB.Net) an existing member with the same
name in the base class. It is similar to "override," except that it is used
to hide a member that is not overridable.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
Neither a follower nor a lender be.

 

[clintonG]

google: c# new keywword c# site:microsoft.com

<%= Clinton Gallagher
METROmilwaukee (sm) "A Regional Information Service"
NET csgallagher AT metromilwaukee.com
URL http://metromilwaukee.com/
URL http://clintongallagher.metromilwaukee.com/

[1]
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/vclrfnewoppg.asp

 

[Guest]

basically that is for name hideing and overriding I guess!

 

[Kevin Spencer]

Well, not exactly. It is used for both name hiding (not overriding) and for
instantiating new instances of classes.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
Neither a follower nor a lender be.

 

[Guest]

so, "new" keyword it does name hiding without overloading in C# as well as
create new instances of classes like in c++.

thanks
newbie

 

[Kevin Spencer]

Almost there. Overloading and overriding are 2 different concepts.
Overloading is creating multiple methods with the same name and different
signatures (parameters, return values, etc). Overriding is creating a method
in a derived (inherited) class that is used instead of the same overridable
method in its base class. Overriding can only be used with overridable
methods in the base class. Methods not marked as overridable cannot be
overridden. The "new" modifier hides a member (not confined to methods) in
the base class, regardless of whether or not it is overridable.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
Neither a follower nor a lender be.