CODEWITHSUNDEEP
c#listgenericsinitialization
Rik
Rik

Reputation: 1987

initializing a list<>

When I use this line, I get an error:

tradesThisBar=new List<Traid>;

error: A new expression requires (), [], or {} after type

How do I initialize it? I initialize it in the declaration but I need to reset it.

also, will this line work?:

if (tradesThisBar!=null){}

Upvotes: 2

Views: 141

Answers (2)

Curtis
Curtis

Reputation: 103358

As the error has specified, add () after your type:

tradesThisBar=new List<Traid>();

Regarding the 2nd snippet of code, the code you enter into the {} will only be ran if tradesThisBar is not null.

In terms of whether it will "work" depends on what you wish for it to do. But it will compile.

Upvotes: 4

LightStriker
LightStriker

Reputation: 21004

You need to call the constructor:

tradesThisBar = new List<Traid>();

If you want to reset it:

tradesThisBar = null;

Upvotes: 1

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