Question

你好，我有一个问题。我需要知道如何为许多按钮添加一个事件。每个按钮都会使 labelfloor 不同的文本值（例如1-4）

   using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApp1
{
    /// <summary>
    /// Interakční logika pro MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            bool Aktive;
            bool lights;
            int actualyfloor;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {

            labelFloor.Content = button(1-4).Tag.ToString(); // When i click at 1-4 button its will change value in labelFloor to (1-4)
        }
    }

Answer 1

点击的按钮应该在参数sender中提供给您。检查它是否为Button类型，然后从中读取Tag属性。

private void Button_Click(object sender, RoutedEventArgs e)
{
    Button button = sender as Button;
    if (button == null) return;

    labelFloor.Content = button.Tag.ToString();
}

C＃WPF按钮具有相同的事件，但它们具有不同的Tag作为输出

1 个答案: