假设您有两个按钮，如下所示：

<Button Clicked="EventClickedHandler"/>
<Button Clicked="EventClickedHandler"/>

现在只需像这样在这些按钮控件中添加Class id

<Button Clicked="EventClickedHandler" ClassId="1"/>
<Button Clicked="EventClickedHandler" ClassId="2"/>

然后在click事件处理程序中编写以下代码：

private void EventClickedHandler(object sender, EventArgs e) {
    var button = (Button)sender;
    var classId = button.ClassId;
    // This will give you the value / classId of your button which you'll press
    DisplayAlert("Hi", classId.ToString(), "Alright");
}