SelectExpression.CreateColumnExpression 메서드

정의

네임스페이스:

Microsoft.EntityFrameworkCore.Query.SqlExpressions

어셈블리:

Microsoft.EntityFrameworkCore.Relational.dll

패키지:

Microsoft.EntityFrameworkCore.Relational v9.0.0

Source:

SelectExpression.cs

이 SelectExpression에서 ColumnExpression 테이블을 참조하는 을 만듭니다.

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.ColumnExpression CreateColumnExpression (Microsoft.EntityFrameworkCore.Query.SqlExpressions.TableExpressionBase tableExpression, string columnName, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping, bool? columnNullable = default);

member this.CreateColumnExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.TableExpressionBase * string * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping * Nullable<bool> -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.ColumnExpression

Public Function CreateColumnExpression (tableExpression As TableExpressionBase, columnName As String, type As Type, typeMapping As RelationalTypeMapping, Optional columnNullable As Nullable(Of Boolean) = Nothing) As ColumnExpression

매개 변수

tableExpression

TableExpressionBase

열에서 참조하는 테이블 식입니다.

columnName

String

열 이름입니다.

type

Type

CLR 형식 열입니다.

typeMapping

RelationalTypeMapping

열의 형식 매핑입니다.

columnNullable

Nullable<Boolean>

열이 null 허용인지 여부입니다.

반환

ColumnExpression