Delegate Func<T, TResult>

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

Namespace: System
Assembly: mscorlib.dll
Syntax
public delegate TResult Func<in T, out TResult>(T arg)
Parameters
Type Name Description
T arg

The parameter of the method that this delegate encapsulates.
Returns
Type Description
TResult

The return value of the method that this delegate encapsulates.
Type Parameters
Name Description
T

The type of the parameter 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.
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.

Constructors

Func(object, IntPtr)

Declaration
public Func(object @object, IntPtr method)
Parameters
Type Name Description
object object
IntPtr method

Methods

BeginInvoke(T, AsyncCallback, object)

Declaration
public virtual IAsyncResult BeginInvoke(T arg, AsyncCallback callback, object @object)
Parameters
Type Name Description
T arg
AsyncCallback callback
object object
Returns
Type Description
IAsyncResult

EndInvoke(IAsyncResult)

Declaration
public virtual TResult EndInvoke(IAsyncResult result)
Parameters
Type Name Description
IAsyncResult result
Returns
Type Description
TResult

Invoke(T)

Declaration
public virtual TResult Invoke(T arg)
Parameters
Type Name Description
T arg
Returns
Type Description
TResult

Extension Methods