c# - 如何动态制作按钮？

Question

我正在做一个按钮的“列表”，比如表单中的菜单，我正在尝试从数据库中的表中完成它，我这样做是这样的：

foreach (Catalogos catalogo in catalogos)
{
    SimpleButton sb = new SimpleButton();
    sb.Text = catalogo.Nombre;
    sb.Click += catalogo.Evento;
    LayoutControlItem item = new LayoutControlItem();
    item.TextVisible = false;
    item.Control = sb;
    lcg.Add(item);
 }

我的问题是sb.Click += catalogo.Evento在线，我怎样才能动态地做事件

Answer 1

使用 lambda / 匿名方法

SimpleButton sb = new SimpleButton();
sb.Text = catalogo.Nombre;
sb.Click += (sender, evntArgs) => {
    //some dynamic mouse click handler here.
};

Answer 2

选项1

在表单中创建一个SimpleButton_Click方法

private void SimpleButton_Click(object sender, EventArgs e)
{
    //using (SimpleButton)sender you can find which botton is clicked
}

然后在你的循环中，将该方法分配给Click事件：

sb.Click += new System.EventHandler(this.SimpleButton_Click);

选项 2

以这种方式将委托/lambda表达式分配给事件：

//instead of sender and e, usually you should use different names
//because usually you are running this code in an event handler
//that has sender and e parameters itself
sb.Click += (object senderObject, EventArgs eventArgs) => 
{
   //using (SimpleButton)sender you can find which botton is clicked
};