ObservableCollection + RaiseEvent on Add

Question

大家好，

当ObservableCollection中添加了一个项时，我该如何触发事件？

- Pete

Answer 1

当列表中添加、删除、更改、移动或整个列表刷新时，CollectionChanged事件会被触发。您可以订阅CollectionChanged以接收通知。

来自MSDN

 public class NameList : ObservableCollection<PersonName>
    {
        public NameList() : base()
        {
            Add(new PersonName("Willa", "Cather"));
            Add(new PersonName("Isak", "Dinesen"));
            Add(new PersonName("Victor", "Hugo"));
            Add(new PersonName("Jules", "Verne"));
        }
      }

      public class PersonName
      {
          private string firstName;
          private string lastName;

          public PersonName(string first, string last)
          {
              this.firstName = first;
              this.lastName = last;
          }

          public string FirstName
          {
              get { return firstName; }
              set { firstName = value; }
          }

          public string LastName
          {
              get { return lastName; }
              set { lastName = value; }
          }
      }

- chikak

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秒数在里面... Jon 和我都有“不够快”的已删除答案 ;-p - Marc Gravell

比Marc和Jon回答更快——这至少应该获得银牌！ - Treb