PropertyChangedEventData 建構函式
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
建構事件承載。
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.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)
參數
- eventDefinition
- EventDefinitionBase
事件定義。
- messageGenerator
- Func<EventDefinitionBase,EventData,String>
產生此事件記錄訊息的委派。
- entityEntry
- EntityEntry
屬性值已變更之實體實例的專案。
- property
- IProperty
屬性。
- oldValue
- Object
舊值。
- newValue
- Object
新值。