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c#.netparametersdefault-valueoptional-parameters
Chin
Chin

Reputation: 12712

How to use default parameters in C#?

In other languages I can set up the method signature like

cookEgg(boolean hardBoiled = true)

This defaults the parameter hardboiled to true, if I don't receive a parameter in the method call.

How would I achieve this in C#?

Upvotes: 17

Views: 16092

Answers (3)

QrystaL
QrystaL

Reputation: 4966

Default parameters are supported in C# 4 (Visual Studio 2010).

http://msdn.microsoft.com/en-us/library/dd264739(VS.100).aspx

Upvotes: 11

KV Prajapati
KV Prajapati

Reputation: 94653

This is not what you look exactly but I think params argument is another answer.

void test(params int []arg) { }

Upvotes: 2

Pavel Minaev
Pavel Minaev

Reputation: 101655

At present, you have to overload the method:

void cookEgg(bool hardBoiled) { ... }
void cookEgg() { cookEgg(true); }

C# 4.0 will add optional arguments - you will be able to write code exactly as in your original sample, and it will work as you'd expect.

Upvotes: 32

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