PropertyChangedEventData 构造函数
定义
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。
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);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.PropertyChangedEventDataPublic 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。
