Params vs. List<T>, When should I use params keyword and when to use List<t>

I am developing a card game.

In this card game the player can set down few cards in the same turn.

I have a function called SetCardsDown(....)

The card collection parameter can imple开发者_如何学Pythonmented by params keyword or List type.

In which implemenation should I use?

thanks

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I'd probably use IEnumerable<T>. That's the most flexible and least restrictive. Once you move to C# 4 (and you should) that will allow callers to use LINQ.

EDIT: Or you can use LINQ with 3.5. But unless you are forced to use something else, move to .NET 4.

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params as it will give you the ability to pass in an array. It doesn't seem like you would want to pass in a list because that would give you extra functionality on the parameter that doesn't make sense. Like Add for example.