通过

QueryablePattern<T1、T2、T3、T4>。Then<TResult> 方法

当所有可观测序列都具有可用值并投影值时匹配。

Namespace：System.Reactive.Joins
装配： System.Reactive.Providers.dll) 中的 System.Reactive.Providers (

语法

'Declaration
Public Function Then(Of TResult) ( _
    selector As Expression(Of Func(Of T1, T2, T3, T4, TResult)) _
) As QueryablePlan(Of TResult)

'Usage
Dim instance As QueryablePattern
Dim selector As Expression(Of Func(Of T1, T2, T3, T4, TResult))
Dim returnValue As QueryablePlan(Of TResult)

returnValue = instance.Then(selector)

public QueryablePlan<TResult> Then<TResult>(
    Expression<Func<T1, T2, T3, T4, TResult>> selector
)

public:
generic<typename TResult>
QueryablePlan<TResult>^ Then(
    Expression<Func<T1, T2, T3, T4, TResult>^>^ selector
)

member Then : 
        selector:Expression<Func<'T1, 'T2, 'T3, 'T4, 'TResult>> -> QueryablePlan<'TResult> 

JScript does not support generic types and methods.

类型参数

  • TResult
    选择器函数的返回值的类型。

parameters

返回值

类型： System.Reactive.Joins.QueryablePlan<TResult>
联接可查询模式的执行计划。

另请参阅

参考

QueryablePattern<T1、T2、T3、T4> 类

System.Reactive.Joins 命名空间