QuerySqlGenerator.VisitProjection(ProjectionExpression) 方法

定義

命名空間:

Microsoft.EntityFrameworkCore.Query

組件:

Microsoft.EntityFrameworkCore.Relational.dll

套件:

Microsoft.EntityFrameworkCore.Relational v8.0.0

流覽投影運算式的子系。

protected override System.Linq.Expressions.Expression VisitProjection (Microsoft.EntityFrameworkCore.Query.SqlExpressions.ProjectionExpression projectionExpression);

override this.VisitProjection : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ProjectionExpression -> System.Linq.Expressions.Expression

Protected Overrides Function VisitProjection (projectionExpression As ProjectionExpression) As Expression

參數

projectionExpression

ProjectionExpression

要造訪的運算式。

傳回

Expression

如果運算式本身或是任一子運算式已經修正，會傳回修正的運算式，否則傳回原始運算式。