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public partial class Form2 : Form
{
public EventHandler AAChanging;
private string aa;
public string AA
{
get { return aa; }
set { aa = value; AAChanging(this, new EventArgs()); }
}
public Form2()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
this.AA = "abc";
}
private void Form2_Load(object sender, EventArgs e)
{
this.AAChanging += new EventHandler(Form2_AAChanging);
}
private void Form2_AAChanging(object sender, EventArgs e)
{
textBox1.Text = aa;
}
}