[アーティクル]
11/18/2011

Action<T1, T2, T3, T4, T5, T6> Delegate

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Updated: October 2010

Encapsulates a method that has six parameters and does not return a value.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public Delegate Sub Action(Of In T1, In T2, In T3, In T4, In T5, In T6) ( _
    arg1 As T1, _
    arg2 As T2, _
    arg3 As T3, _
    arg4 As T4, _
    arg5 As T5, _
    arg6 As T6 _
)

public delegate void Action<in T1, in T2, in T3, in T4, in T5, in T6>(
    T1 arg1,
    T2 arg2,
    T3 arg3,
    T4 arg4,
    T5 arg5,
    T6 arg6
)

Type Parameters

inT1
The type of the first parameter of the method that this delegate encapsulates.

This type parameter is contravariant. That is, you can use either the type you specified or any type that is less derived. For more information about covariance and contravariance, see 2678dc63-c7f9-4590-9ddc-0a4df684d42e.

inT2
The type of the second parameter of the method that this delegate encapsulates.

inT3
The type of the third parameter of the method that this delegate encapsulates.

inT4
The type of the fourth parameter of the method that this delegate encapsulates.

inT5
The type of the fifth parameter of the method that this delegate encapsulates.

inT6
The type of the sixth parameter of the method that this delegate encapsulates.

Parameters

arg1
Type: T1
The first parameter of the method that this delegate encapsulates.

arg2
Type: T2
The second parameter of the method that this delegate encapsulates.

arg3
Type: T3
The third parameter of the method that this delegate encapsulates.

arg4
Type: T4
The fourth parameter of the method that this delegate encapsulates.

arg5
Type: T5
The fifth parameter of the method that this delegate encapsulates.

arg6
Type: T6
The sixth parameter of the method that this delegate encapsulates.

Remarks

You can use the Action<T1, T2, T3, T4, T5, T6> delegate to pass a method as a parameter without explicitly declaring a custom delegate. The encapsulated method must correspond to the method signature that is defined by this delegate. This means that the encapsulated method must have six parameters that are all passed to it by value, and it must not return a value. (In C#, the method must return void. In Visual Basic, it must be defined by the Sub…End Sub construct. It can also be a method that returns a value that is ignored.) Typically, such a method is used to perform an operation.

Note:
To reference a method that has six parameters and returns a value, use the generic Func<T1, T2, T3, T4, T5, T6, TResult> delegate instead.

You can also use the Action<T1, T2, T3, T4, T5, T6> delegate with anonymous methods and lambda expressions.

Version Information

Silverlight

Supported in: 5, 4

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Change History

Date	History	Reason
October 2010	Modified Visual Basic lambda expression to use Sub keyword.	Customer feedback.

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