Question

我这里有一堆代码很可能类似，但只是在一些静态（名称）上有所不同。

public void Windows() {
        var win = new ListViewItem { Content = "Windows" };
        Main.Items.Add(win);
        win.Tapped += Windowstapp;
        string[] lv= new string[20];
        for (int x = 0; x <=19; x++) {
            lv[x] = "    Windows" + (x+1);

        }
    foreach (string val in lv) {
        var lvi = new ListViewItem { Content = val };
        Main.Items.Add(lvi);
        lvi.Visibility = Visibility.Collapsed;
        if (iden == false) {
            lvi.Visibility = Visibility.Visible;
            sv.ScrollToVerticalOffset(0);
        }

    }
    }
    public void Doors() {
        var door = new ListViewItem { Content = "Door" };
        Main.Items.Add(door);
        door.Tapped += DoorTapp;
        string[] lv = new string[20];
        for (int x = 0; x <= 19; x++)
        {
            lv[x] = "    Doors" + (x + 1);

        }
         foreach (string val in lv)
         {
             var lvi = new ListViewItem { Content = val };
             Main.Items.Add(lvi);
             lvi.Visibility = Visibility.Collapsed;
             if (id == false)
             {
                 lvi.Visibility = Visibility.Visible;
                 sv.ScrollToVerticalOffset(0);
             }
         }

    }

我计划创建一个这样的方法：

 public void House(string a) {
        var win = new ListViewItem { Content = a };
        Main.Items.Add(win);
        win.Tapped += Windowstapp;
        string[] lv= new string[20];
        for (int x = 0; x <=19; x++) {
            lv[x] = "    " + a + (x+1);

        }
    foreach (string val in lv) {
        var lvi = new ListViewItem { Content = val };
        Main.Items.Add(lvi);
        lvi.Visibility = Visibility.Collapsed;
        if (iden == false) {
            lvi.Visibility = Visibility.Visible;
            sv.ScrollToVerticalOffset(0);
        }

    }
    }

但我在胜利中遇到了问题。 Tapped += WindowsTapp;因为他们没有分享同一事件，我该怎么做才能实现这一目标？也许像win.Tapped += a+WindowsTapp？

提前致谢！

Answer 1

只需传入您要用于订阅该活动的委托：

// I can't find the docs for ListViewItem.Tapped right now - adjust the
// type of the "handler" parameter to match the event
public void CreateItem(string contentName, TappedEventHandler handler)
{
    var item = new ListViewItem { Content = a };
    Main.Items.Add(item);
    item.Tapped += handler;
    ...
}

然后用：

调用它

CreateItem("Door", DoorTapped);
CreateItem("Window", WindowTapped);

（我将方法名称更改为更常规 - 当然，您也需要更改声明。）

C＃windows 8应用程序。缩小代码

1 个答案: