Action<(Of <(T1, T2, T3, T4, T5, T6, T7, T8>)>) Delegate
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Encapsulates a method that has eight parameters and does not return a value.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
Public Delegate Sub Action(Of In T1, In T2, In T3, In T4, In T5, In T6, In T7, In T8) ( _
arg1 As T1, _
arg2 As T2, _
arg3 As T3, _
arg4 As T4, _
arg5 As T5, _
arg6 As T6, _
arg7 As T7, _
arg8 As T8 _
)
public delegate void Action<in T1, in T2, in T3, in T4, in T5, in T6, in T7, in T8>(
T1 arg1,
T2 arg2,
T3 arg3,
T4 arg4,
T5 arg5,
T6 arg6,
T7 arg7,
T8 arg8
)
Type Parameters
inInininT1
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].
- inInininT2
The type of the second parameter of the method that this delegate encapsulates.
- inInininT3
The type of the third parameter of the method that this delegate encapsulates.
- inInininT4
The type of the fourth parameter of the method that this delegate encapsulates.
- inInininT5
The type of the fifth parameter of the method that this delegate encapsulates.
- inInininT6
The type of the sixth parameter of the method that this delegate encapsulates.
- inInininT7
The type of the seventh parameter of the method that this delegate encapsulates.
- inInininT8
The type of the eighth 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.
- arg7
Type: T7
The seventh parameter of the method that this delegate encapsulates.
- arg8
Type: T8
The eighth parameter of the method that this delegate encapsulates.
Remarks
You can use the Action<(Of <(T1, T2, T3, T4, T5, T6, T7, T8>)>) 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 eight 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 eight parameters and returns a value, use the generic Func<(Of <(T1, T2, T3, T4, T5, T6, T7, T8, TResult>)>) delegate instead.
You can also use the Action<(Of <(T1, T2, T3, T4, T5, T6, T7, T8>)>) delegate with anonymous methods and lambda expressions.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0