通过

ObservableHashSet<T>.PropertyChanging 事件

  • 参考

定义

命名空间:
Microsoft.EntityFrameworkCore.ChangeTracking
程序集:
Microsoft.EntityFrameworkCore.dll
包:
Microsoft.EntityFrameworkCore v1.0.6
包:
Microsoft.EntityFrameworkCore v1.1.6
包:
Microsoft.EntityFrameworkCore v2.0.3
包:
Microsoft.EntityFrameworkCore v2.1.11
包:
Microsoft.EntityFrameworkCore v2.2.6
包:
Microsoft.EntityFrameworkCore v3.0.0
包:
Microsoft.EntityFrameworkCore v3.1.0
包:
Microsoft.EntityFrameworkCore v5.0.0
包:
Microsoft.EntityFrameworkCore v6.0.0
包:
Microsoft.EntityFrameworkCore v7.0.0
包:
Microsoft.EntityFrameworkCore v8.0.0

此哈希集的属性 (（如 Count) ）更改时发生。

public virtual event System.ComponentModel.PropertyChangingEventHandler PropertyChanging;
public virtual event System.ComponentModel.PropertyChangingEventHandler? PropertyChanging;
public event System.ComponentModel.PropertyChangingEventHandler? PropertyChanging;
member this.PropertyChanging : System.ComponentModel.PropertyChangingEventHandler 
Public Overridable Event PropertyChanging As PropertyChangingEventHandler 
Public Event PropertyChanging As PropertyChangingEventHandler

事件类型

PropertyChangingEventHandler

实现

PropertyChanging

适用于