private void btnDelegate_Click(object sender, EventArgs e)
{
logger.Debug("delegate");
Counting counting = new Counting();
//使用CountingAlert這個delegate型別建立新的delegate實體, 並將參考指向Alert這個method
Counting.CountingNotify del = new Counting.CountingNotify(Alert);
//將delegate實體加入至Class中同型別的delegate Field中
counting.notifyHandler += del;
}
private void btnAnonymous_Click(object sender, EventArgs e)
{
logger.Debug("anonymous delegate");
Counting counting = new Counting();
//使用CountingAlert這個delegate型別建立新的delegate實體, 並將參考指向匿名方法
Counting.CountingNotify del = delegate(int currentNum)
{
int limit = 5;
logger.DebugFormat("current num: {0}, limit: {1}", currentNum, limit);
if (currentNum > limit)
{
logger.DebugFormat("currnet num > {0}", limit);
}
};
//將delegate實體加入至Class中同型別的delegate Field中
counting.notifyHandler += del;
}