Action<T1,T2,T3,T4,T5,T6,T7> Action<T1,T2,T3,T4,T5,T6,T7> Action<T1,T2,T3,T4,T5,T6,T7> Action<T1,T2,T3,T4,T5,T6,T7> Delegate

定义

封装一个方法,该方法具有七个参数并且不返回值。Encapsulates a method that has seven parameters and does not return a value.

generic <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
public delegate void Action(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7);
public delegate void Action<in T1,in T2,in T3,in T4,in T5,in T6,in T7>(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7);
type Action<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7> = delegate of 'T1 * 'T2 * 'T3 * 'T4 * 'T5 * 'T6 * 'T7 -> unit
Public Delegate Sub Action(Of In T1, In T2, In T3, In T4, In T5, In T6, In T7)(arg1 As T1, arg2 As T2, arg3 As T3, arg4 As T4, arg5 As T5, arg6 As T6, arg7 As T7)

类型参数

T1

此委托封装的方法的第一个参数的类型。The type of the first parameter of the method that this delegate encapsulates.

T2

此委托封装的方法的第二个参数的类型。The type of the second parameter of the method that this delegate encapsulates.

T3

此委托封装的方法的第三个参数的类型。The type of the third parameter of the method that this delegate encapsulates.

T4

此委托封装的方法的第四个参数的类型。The type of the fourth parameter of the method that this delegate encapsulates.

T5

此委托封装的方法的第五个参数的类型。The type of the fifth parameter of the method that this delegate encapsulates.

T6

此委托封装的方法的第六个参数的类型。The type of the sixth parameter of the method that this delegate encapsulates.

T7

此委托封装的方法的第七个参数的类型。The type of the seventh parameter of the method that this delegate encapsulates.

参数

arg1

此委托封装的方法的第一个参数。The first parameter of the method that this delegate encapsulates.

arg2

此委托封装的方法的第二个参数。The second parameter of the method that this delegate encapsulates.

arg3

此委托封装的方法的第三个参数。The third parameter of the method that this delegate encapsulates.

arg4

此委托封装的方法的第四个参数。The fourth parameter of the method that this delegate encapsulates.

arg5

此委托封装的方法的第五个参数。The fifth parameter of the method that this delegate encapsulates.

arg6

此委托封装的方法的第六个参数。The sixth parameter of the method that this delegate encapsulates.

arg7

此委托封装的方法的第七个参数。The seventh parameter of the method that this delegate encapsulates.

继承
Action<T1,T2,T3,T4,T5,T6,T7>Action<T1,T2,T3,T4,T5,T6,T7>Action<T1,T2,T3,T4,T5,T6,T7>Action<T1,T2,T3,T4,T5,T6,T7>

注解

可以使用Action<T1,T2,T3,T4,T5,T6,T7>委托作为参数传递方法,而无需显式声明自定义委托。You can use the Action<T1,T2,T3,T4,T5,T6,T7> delegate to pass a method as a parameter without explicitly declaring a custom delegate. 封装的方法必须对应于此委托定义的方法签名。The encapsulated method must correspond to the method signature that is defined by this delegate. 这意味着,封装的方法必须具有均按值传递给它的七个参数并且不能返回值。This means that the encapsulated method must have seven parameters that are all passed to it by value, and it must not return a value. (在 C# 中,该方法必须返回void(In C#, the method must return void. 在 Visual Basic 中,它必须由定义Sub...End SubIn Visual Basic, it must be defined by the SubEnd Sub 构造。construct. 它也可以是返回一个值,则忽略该值的方法。)通常情况下,这种方法用于执行操作。It can also be a method that returns a value that is ignored.) Typically, such a method is used to perform an operation.

备注

若要引用的方法有七个形参,并返回一个值,使用泛型Func<T1,T2,T3,T4,T5,T6,T7,TResult>改为委托。To reference a method that has seven parameters and returns a value, use the generic Func<T1,T2,T3,T4,T5,T6,T7,TResult> delegate instead.

此外可以使用Action<T1,T2,T3,T4,T5,T6,T7>委托与匿名方法和 lambda 表达式。You can also use the Action<T1,T2,T3,T4,T5,T6,T7> delegate with anonymous methods and lambda expressions.

扩展方法

GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate)

获取指示指定委托表示的方法的对象。Gets an object that represents the method represented by the specified delegate.

适用于

另请参阅