PropertyChangedEventData 构造函数

定义

命名空间:

Microsoft.EntityFrameworkCore.Diagnostics

程序集:

Microsoft.EntityFrameworkCore.dll

包:

Microsoft.EntityFrameworkCore v8.0.0

构造事件有效负载。

public PropertyChangedEventData (Microsoft.EntityFrameworkCore.Diagnostics.EventDefinitionBase eventDefinition, Func<Microsoft.EntityFrameworkCore.Diagnostics.EventDefinitionBase,Microsoft.EntityFrameworkCore.Diagnostics.EventData,string> messageGenerator, Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry entityEntry, Microsoft.EntityFrameworkCore.Metadata.IProperty property, object? oldValue, object? newValue);

new Microsoft.EntityFrameworkCore.Diagnostics.PropertyChangedEventData : Microsoft.EntityFrameworkCore.Diagnostics.EventDefinitionBase * Func<Microsoft.EntityFrameworkCore.Diagnostics.EventDefinitionBase, Microsoft.EntityFrameworkCore.Diagnostics.EventData, string> * Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry * Microsoft.EntityFrameworkCore.Metadata.IProperty * obj * obj -> Microsoft.EntityFrameworkCore.Diagnostics.PropertyChangedEventData

Public Sub New (eventDefinition As EventDefinitionBase, messageGenerator As Func(Of EventDefinitionBase, EventData, String), entityEntry As EntityEntry, property As IProperty, oldValue As Object, newValue As Object)

参数

eventDefinition

EventDefinitionBase

事件定义。

messageGenerator

Func<EventDefinitionBase,EventData,String>

生成此事件的日志消息的委托。

entityEntry

EntityEntry

属性值已更改的实体实例的条目。

property

IProperty

属性。

oldValue

Object

旧值。

newValue

Object

新值。