C# ObservableCollection – テックメモ

ちょいメモ

    class Person
    {
        public string Name;
        public int Age;
    }

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            ObservableCollection<Person> peoples = new ObservableCollection<Person>();
            peoples.Add(new Person { Name = "taro", Age = 1 });
            peoples.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(Notify);

            //値の変更では反応しない。
            peoples[0].Name = "taro3";

            //ここで反応
            peoples.Add(new Person { Name = "jiro", Age = 2 });
        }
        private void Notify(object sender, EventArgs e)
        {
            MessageBox.Show("");
        }
        
    }

class Person

{

public string Name;

public int Age;

}

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

ObservableCollection<Person> peoples = new ObservableCollection<Person>();

peoples.Add(new Person { Name = "taro", Age = 1 });

peoples.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(Notify);

//値の変更では反応しない。

peoples[0].Name = "taro3";

//ここで反応

peoples.Add(new Person { Name = "jiro", Age = 2 });

}

private void Notify(object sender, EventArgs e)

{

MessageBox.Show("");

}