something like:
var persons = new Person(Name = "Adam");
gives error in vc# 2008 express
i need to add a few of references since there is nothing like linqpreview?

uh? That isn't C# syntax?

var is a JavaScript or J# keyword.

Also, this is incorrect initiliazation of an object new Person(Name = "Adam"); ideally your constructor would look like

public void Person(string Name)
{
}

And your initialization would be Person person = new Person("Adam");

hth.

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In the old days it wasn't. In today's (or actually tomorrow's) 3.5 world it is (almost, see below).... ;)

var persons = new Person(Name = "Adam");

var is a new C# keyword for type inference. The compiler infers the type by looking at the right hand side of the assignment and then types the persons variable appropriately. It looks like weakly type JavaScript but it isn't. After this line, you won't be able to assign another object type to persons (other than a type inheriting from Person that is).

var persons = new Person(Name = "Adam");

Almost correct. You are trying to use object initializers, but got the syntax wrong. You use () first to instantiate the object, then use {..} to initialize the properties:

var persons = new Person(){Name = "Adam"};

Doug: this is just compiler magic that eventually results in:

var persons = new Person();
persons.Name = "Adam";

It allows you to set one or more properties without the need to create specialized constructors.

Nooree: does that fix the error you're getting?

Imar

---------------------------------------
Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

thanks, that worked...

That is pretty cool Imar, thanks for the info! ^^

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You're welcome. There is some pretty cool stuff coming in VS 2008 / ASP.NET 3.5....


Imar

---------------------------------------
Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

I have seen and worked with some of it. WPF is like GDI on Steriods, I am absolutely in love with it. So your new book is going to be out, what, next week right? ;]

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WPF is already available today in .NET 3.0. .NET 3.5 has backwards compatibility for all of that, but comes with a lot more goodies.

Book is coming along quite nice, thank you. Next week would be nice, but I don't think I'll make it. Think March 2008 and you'll be pretty close.....

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004