在 2.0 之前的 C# 版本中，声明委托的唯一方法是使用命名方法。C# 2.0 引入了匿名方法。
要将代码块传递为委托参数，创建匿名方法则是唯一的方法。
/// <summary>
/// 在WindowsFrom中使用匿名函数
/// </summary>
public class TestForm : System.Windows.Forms.Form
{
public TestForm()
{
Button btn = new Button();
btn.Location = new System.Drawing.Point(30, 30);
btn.Size = new System.Drawing.Size(50, 50);
btn.Text = "click me";
btn.Click += delegate(object sender, EventArgs ars)
{
MessageBox.Show("I was clicked");
};
Controls.Add(btn);
}
}
delegate void ShowMessage(string msg);
/// <summary>
/// 匿名方法的例子
/// </summary>
public class anymethod
{
public void TestAnanymethod()
{
string message="this is the message i want to show to user";
ShowMessage test = delegate(string msg)
{
MessageBox.Show(msg);
};
test.Invoke(message);
string secmsg = "this is the second message show to user";
test(secmsg);
}
}
