ConventionAnnotatableExtensions.SetOrRemoveAnnotation 方法

  • 參考

定義

命名空間:
Microsoft.EntityFrameworkCore
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

設定儲存在指定名稱底下的批註。 如果具有指定名稱的注釋已經存在，則會覆寫現有的批註。 如果 null 已提供，則會移除現有的批註。

public static void SetOrRemoveAnnotation (this Microsoft.EntityFrameworkCore.Metadata.IConventionAnnotatable annotatable, string name, object value, bool fromDataAnnotation = false);
public static Microsoft.EntityFrameworkCore.Metadata.IConventionAnnotation SetOrRemoveAnnotation (this Microsoft.EntityFrameworkCore.Metadata.IConventionAnnotatable annotatable, string name, object value, bool fromDataAnnotation = false);
static member SetOrRemoveAnnotation : Microsoft.EntityFrameworkCore.Metadata.IConventionAnnotatable * string * obj * bool -> unit
static member SetOrRemoveAnnotation : Microsoft.EntityFrameworkCore.Metadata.IConventionAnnotatable * string * obj * bool -> Microsoft.EntityFrameworkCore.Metadata.IConventionAnnotation
<Extension()>
Public Sub SetOrRemoveAnnotation (annotatable As IConventionAnnotatable, name As String, value As Object, Optional fromDataAnnotation As Boolean = false)
<Extension()>
Public Function SetOrRemoveAnnotation (annotatable As IConventionAnnotatable, name As String, value As Object, Optional fromDataAnnotation As Boolean = false) As IConventionAnnotation

參數

annotatable
IConventionAnnotatable

要為其設定批註的物件。

name
String

要加入的批註名稱。

value
Object

要儲存在注釋中的值。

fromDataAnnotation
Boolean

指出是否已使用資料批註指定組態。

傳回

IConventionAnnotation

新的批註，如果已移除，則 null 為 。

適用於