public void UsingAction()
{
var textBox = new TextBox();
textBox.TextChanged += delegate(string s) { Console.WriteLine("Text Changed: " + s); };
textBox.SetText("Hello World!");
}
public void NoMemoryLeak()
{
var textBox = new TextBox();
Action<string> onTextChanged = delegate(string s) { Console.WriteLine("Text Changed: " + s); };
textBox.TextChanged += onTextChanged;
textBox.SetText("Hello World!");
textBox.TextChanged -= onTextChanged;
}