c# - 如何将属性 setter 链接到委托(delegate)？

Question

我想给委托(delegate)人一个属性 setter 。这是怎么做到的？

class A {
  private int count;
  public int Count {
    get { return count; }
    set { count = value; }
  }
}
A a = new A();   
delegate void ChangeCountDelegate(int x);
ChangeCountDelegate dlg = ... ? // should call a.Count = x

Answer 1

ChangeCountDelegate dlg = (int x) => a.Count = x;

// or
ChangeCountDelegate dlg = x => a.Count = x;

// or 
ChangeCountDelegate dlg = new ChangeCountDelegate(delegate(int x) { a.Count = x; } );

// or 
ChangeCountDelegate dlg = new ChangeCountDelegate(int x => a.Count = x);

还是我想的太简单了？ :)

我相信你明白了。

第三个在 .NET 2.0 中工作，其他至少需要 3.5 :)