摘要： DotNet规范的委托和事件写法：public delegate void EventHandler(object sender, EventArgs e); //定义委托类型public event EventHandler Click; //声明事件类似于声明了一个封装的委托变量this.btnOpenDB.Click += new System.EventHandler(this.btnOpenDB_Click方法); //注册方法private void btnOpenDB_Click(object sender, EventArgs e) //被注册的方法{ conn = n... 阅读全文