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, TResult)) _
) As QueryablePlan(Of TResult)
'Usage
Dim instance As QueryablePattern
Dim selector As Expression(Of Func(Of T1, T2, T3, TResult))
Dim returnValue As QueryablePlan(Of TResult)
returnValue = instance.Then(selector)
public QueryablePlan<TResult> Then<TResult>(
Expression<Func<T1, T2, T3, TResult>> selector
)
public:
generic<typename TResult>
QueryablePlan<TResult>^ Then(
Expression<Func<T1, T2, T3, TResult>^>^ selector
)
member Then :
selector:Expression<Func<'T1, 'T2, 'T3, '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。
参数
- 选择器
类型： System.Linq.Expressions.Expression<Func<T1， T2， T3， TResult>>
将结果投影到下一个观察者的函数。
返回值
类型： System.Reactive.Joins.QueryablePlan<TResult>
联接可查询模式的执行计划。