CepStream.Select<TPayload, TResult> 方法 (CepStream<TPayload>, Expression<Func<TPayload, TResult>>)
使用投射運算式投射來自輸入資料流的事件。
命名空間: Microsoft.ComplexEventProcessing.Linq
組件: Microsoft.ComplexEventProcessing (在 Microsoft.ComplexEventProcessing.dll 中)
語法
public static CepStream<TResult> Select<TPayload, TResult>(
this CepStream<TPayload> source,
Expression<Func<TPayload, TResult>> selector
)
public:
generic<typename TPayload, typename TResult>
[ExtensionAttribute]
static CepStream<TResult>^ Select(
CepStream<TPayload>^ source,
Expression<Func<TPayload, TResult>^>^ selector
)
static member Select<'TPayload, 'TResult> :
source:CepStream<'TPayload> *
selector:Expression<Func<'TPayload, 'TResult>> -> CepStream<'TResult>
<ExtensionAttribute>
Public Shared Function Select(Of TPayload, TResult) (
source As CepStream(Of TPayload),
selector As Expression(Of Func(Of TPayload, TResult))
) As CepStream(Of TResult)
參數
- source
輸入資料流。
- selector
對應函數,可定義對輸入事件的投射。
傳回值
Type: Microsoft.ComplexEventProcessing.Linq.CepStream<TResult>
投射之輸入事件的資料流。
類型參數
- TPayload
輸入事件裝載的類型。
- TResult
結果事件裝載的類型。
請參閱
Select 超載
CepStream 類別
Microsoft.ComplexEventProcessing.Linq 命名空間
回到頁首