共用方式為

EntityShaperExpression.MarkAsNullable 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

警告

Use MakeNullable() instead.

將此圖案標示為可為 Null，表示它可以塑造 Null 實體實例。

public virtual Microsoft.EntityFrameworkCore.Query.EntityShaperExpression MarkAsNullable ();
[System.Obsolete("Use MakeNullable() instead.")]
public virtual Microsoft.EntityFrameworkCore.Query.EntityShaperExpression MarkAsNullable ();
abstract member MarkAsNullable : unit -> Microsoft.EntityFrameworkCore.Query.EntityShaperExpression
override this.MarkAsNullable : unit -> Microsoft.EntityFrameworkCore.Query.EntityShaperExpression
[<System.Obsolete("Use MakeNullable() instead.")>]
abstract member MarkAsNullable : unit -> Microsoft.EntityFrameworkCore.Query.EntityShaperExpression
override this.MarkAsNullable : unit -> Microsoft.EntityFrameworkCore.Query.EntityShaperExpression
Public Overridable Function MarkAsNullable () As EntityShaperExpression

傳回

EntityShaperExpression

如果 Null 屬性未變更，則為這個運算式，或是具有更新可為 Null 性的運算式。

屬性
ObsoleteAttribute

適用於