ConventionPropertyExtensions.SetAfterSaveBehavior 方法

参考

定义

命名空间:: Microsoft.EntityFrameworkCore

程序集:: Microsoft.EntityFrameworkCore.dll

包:: Microsoft.EntityFrameworkCore v3.0.0

包:: Microsoft.EntityFrameworkCore v3.1.0

包:: Microsoft.EntityFrameworkCore v5.0.0

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

设置一个值，该值指示在实体保存到数据库后是否可以修改此属性。

如果 Throw为，则在数据库中存在实体后，如果为此属性分配了新值，则会引发异常。

如果 Ignore为，则将忽略对数据库中已存在的实体的属性值所做的任何修改。

public static void SetAfterSaveBehavior (this Microsoft.EntityFrameworkCore.Metadata.IConventionProperty property, Microsoft.EntityFrameworkCore.Metadata.PropertySaveBehavior? afterSaveBehavior, bool fromDataAnnotation = false);

public static Microsoft.EntityFrameworkCore.Metadata.PropertySaveBehavior? SetAfterSaveBehavior (this Microsoft.EntityFrameworkCore.Metadata.IConventionProperty property, Microsoft.EntityFrameworkCore.Metadata.PropertySaveBehavior? afterSaveBehavior, bool fromDataAnnotation = false);

static member SetAfterSaveBehavior : Microsoft.EntityFrameworkCore.Metadata.IConventionProperty * Nullable<Microsoft.EntityFrameworkCore.Metadata.PropertySaveBehavior> * bool -> unit

static member SetAfterSaveBehavior : Microsoft.EntityFrameworkCore.Metadata.IConventionProperty * Nullable<Microsoft.EntityFrameworkCore.Metadata.PropertySaveBehavior> * bool -> Nullable<Microsoft.EntityFrameworkCore.Metadata.PropertySaveBehavior>

<Extension()>
Public Sub SetAfterSaveBehavior (property As IConventionProperty, afterSaveBehavior As Nullable(Of PropertySaveBehavior), Optional fromDataAnnotation As Boolean = false)

<Extension()>
Public Function SetAfterSaveBehavior (property As IConventionProperty, afterSaveBehavior As Nullable(Of PropertySaveBehavior), Optional fromDataAnnotation As Boolean = false) As Nullable(Of PropertySaveBehavior)