共用方式為

QueryableMethodTranslatingExpressionVisitor.TranslateSum 方法

  • 參考

定義

命名空間:
Microsoft.EntityFrameworkCore.Query
組件:
Microsoft.EntityFrameworkCore.dll
套件:
Microsoft.EntityFrameworkCore v3.0.0
套件:
Microsoft.EntityFrameworkCore v3.1.0
套件:
Microsoft.EntityFrameworkCore v5.0.0
套件:
Microsoft.EntityFrameworkCore v6.0.0
套件:
Microsoft.EntityFrameworkCore v7.0.0
套件:
Microsoft.EntityFrameworkCore v8.0.0

Sum(IQueryable<Decimal>)將方法和其他多載轉譯為指定的來源。

protected abstract Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression TranslateSum (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.LambdaExpression selector, Type resultType);
protected abstract Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression? TranslateSum (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.LambdaExpression? selector, Type resultType);
abstract member TranslateSum : Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression * System.Linq.Expressions.LambdaExpression * Type -> Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression
Protected MustOverride Function TranslateSum (source As ShapedQueryExpression, selector As LambdaExpression, resultType As Type) As ShapedQueryExpression

參數

source
ShapedQueryExpression

套用運算子的成形查詢。

selector
LambdaExpression

呼叫中提供的選取器。

resultType
Type

作業之後的結果類型。

傳回

ShapedQueryExpression

翻譯後的成形查詢。

適用於