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Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, TResult> Delegate

Encapsulates a method that has 12 parameters and returns a value of the type specified by the TResult parameter.

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

public delegate TResult Func<in T1, in T2, in T3, in T4, in T5, in T6, in T7, in T8, in T9, in T10, in T11, in T12, out TResult>(
	T1 arg1,
	T2 arg2,
	T3 arg3,
	T4 arg4,
	T5 arg5,
	T6 arg6,
	T7 arg7,
	T8 arg8,
	T9 arg9,
	T10 arg10,
	T11 arg11,
	T12 arg12
)

Type Parameters

in T1

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 Covariance and Contravariance in Generics.

in T2

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

in T3

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

in T4

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

in T5

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

in T6

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

in T7

The type of the seventh parameter of the method that this delegate encapsulates.

in T8

The type of the eighth parameter of the method that this delegate encapsulates.

in T9

The type of the ninth parameter of the method that this delegate encapsulates.

in T10

The type of the tenth parameter of the method that this delegate encapsulates.

in T11

The type of the eleventh parameter of the method that this delegate encapsulates.

in T12

The type of the twelfth parameter of the method that this delegate encapsulates.

out TResult

The type of the return value of the method that this delegate encapsulates.

This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics.

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.

arg9
Type: T9

The ninth parameter of the method that this delegate encapsulates.

arg10
Type: T10

The tenth parameter of the method that this delegate encapsulates.

arg11
Type: T11

The eleventh parameter of the method that this delegate encapsulates.

arg12
Type: T12

The twelfth parameter of the method that this delegate encapsulates.

Return Value

Type: TResult
The return value of the method that this delegate encapsulates.

You can use this delegate to represent a method that can be passed 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 12 parameters, each of which is passed to it by value, and that it must return a value.

NoteNote

To reference a method that has 12 parameters and returns void (or in Visual Basic, that is declared as a Sub rather than as a Function), use the generic Action<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> delegate instead.

You can also use the Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, TResult> delegate with anonymous methods and lambda expressions.

The underlying type of a lambda expression is one of the generic Func delegates. This makes it possible to pass a lambda expression as a parameter without explicitly assigning it to a delegate.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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