SelectExpression.ApplyGrouping 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
多載
ApplyGrouping(Expression, Expression, ISqlExpressionFactory) |
從指定的索引鍵選取器套用群組,並產生 RelationalGroupByShaperExpression 至圖形結果。 |
ApplyGrouping(Expression) |
從指定的索引鍵選取器套用群組。 |
ApplyGrouping(Expression, Expression, ISqlExpressionFactory)
從指定的索引鍵選取器套用群組,並產生 RelationalGroupByShaperExpression 至圖形結果。
public Microsoft.EntityFrameworkCore.Query.GroupByShaperExpression ApplyGrouping (System.Linq.Expressions.Expression keySelector, System.Linq.Expressions.Expression shaperExpression, Microsoft.EntityFrameworkCore.Query.ISqlExpressionFactory sqlExpressionFactory);
public Microsoft.EntityFrameworkCore.Query.RelationalGroupByShaperExpression ApplyGrouping (System.Linq.Expressions.Expression keySelector, System.Linq.Expressions.Expression shaperExpression, Microsoft.EntityFrameworkCore.Query.ISqlExpressionFactory sqlExpressionFactory);
member this.ApplyGrouping : System.Linq.Expressions.Expression * System.Linq.Expressions.Expression * Microsoft.EntityFrameworkCore.Query.ISqlExpressionFactory -> Microsoft.EntityFrameworkCore.Query.GroupByShaperExpression
member this.ApplyGrouping : System.Linq.Expressions.Expression * System.Linq.Expressions.Expression * Microsoft.EntityFrameworkCore.Query.ISqlExpressionFactory -> Microsoft.EntityFrameworkCore.Query.RelationalGroupByShaperExpression
Public Function ApplyGrouping (keySelector As Expression, shaperExpression As Expression, sqlExpressionFactory As ISqlExpressionFactory) As GroupByShaperExpression
Public Function ApplyGrouping (keySelector As Expression, shaperExpression As Expression, sqlExpressionFactory As ISqlExpressionFactory) As RelationalGroupByShaperExpression
參數
- keySelector
- Expression
GROUP BY 的索引鍵選取器運算式。
- shaperExpression
- Expression
目前查詢的圖形運算式。
- sqlExpressionFactory
- ISqlExpressionFactory
要使用的 sql 運算式處理站。
傳回
, RelationalGroupByShaperExpression 表示群組作業的結果。
適用於
ApplyGrouping(Expression)
從指定的索引鍵選取器套用群組。
public void ApplyGrouping (System.Linq.Expressions.Expression keySelector);
member this.ApplyGrouping : System.Linq.Expressions.Expression -> unit
Public Sub ApplyGrouping (keySelector As Expression)
參數
- keySelector
- Expression
GROUP BY 的索引鍵選取器運算式。