怎么指定button的click事件

[pettyfly]

想要动态生成一组button按钮，不知道click事件要怎么加进去，求指导
xml:

        <StackPanel Name="spWorkSheet" Margin="5"></StackPanel>

自定义类:

    public class MyButton
    {
        public string btnText {get;set; }
        public string btnName {get; set;}
        public string btnCommand{get;set;}
    }

主窗口代码实现

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            List<MyButton> btns = new List<MyButton>();
            MyButton btn1 = new MyButton() { btnText = "Button1", btnName = "Button1", btnCommand = "Button1_Click" };
            MyButton btn2 = new MyButton() { btnText = "Button2", btnName = "Button2", btnCommand = "Button2_Click" };
            MyButton btn3 = new MyButton() { btnText = "Button3", btnName = "Button3", btnCommand = "Button3_Click" };
            btns.Add(btn1);
            btns.Add(btn2);
            btns.Add(btn3);

            foreach (MyButton item in btns)
            {
                Button btn = new Button() 
                    { Content = item.btnText, Name = item.btnName, Height = 30, Margin = new Thickness(30, 5, 30, 0) };
                btn.Click += new RoutedEventHandler(item.btnCommand);   // 这个地方不知道怎么用
                spWorkSheet.Children.Add(btn);
            }
        }

        private void Button1_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Button1 is clicked.");
        }
        private void Button2_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Button2 is clicked.");
        }
        private void Button3_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Button3 is clicked.");
        }

[thisishexiao]

结构改一下，在StackPanel中设置ButtonBase.Click="Button_Click"，这样StackPanel里的任何Button的Click事件都会传到StackPanel上。 然后在Handler中判断是哪个Button

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            var btn = sender as Button;
            var btnName = btn.Name;
            var msg = String.Format("{0} is clicked.", btnName);
            MessageBox.Show(msg );
        }

[pettyfly]

我用楼上的方法得到的btn一直是null,怎么回事？

[pettyfly]

这样就可以了 btn.Click += new RoutedEventHandler(Button_Click);

[thisishexiao]

引用 2 楼 pettyfly 的回复:

我用楼上的方法得到的btn一直是null,怎么回事？

不好意思，写错了，应该使用RoutedEventArgs参数e获取触发事件的按钮 var btn = e.OriginalSource as Button;

[exception92]

引用 3 楼 pettyfly 的回复:

这样就可以了 btn.Click += new RoutedEventHandler(Button_Click);

事件不是 string类型的。 += 相当于指定事件，也就是你的Button_Click 供任何按钮使用触发使用。

[pettyfly]

如果我把每一个button设定一个序号，在创建button的时候把这个序号赋值，在button_Click中得到这个序号，要怎么实现？

[thisishexiao]

引用 6 楼 pettyfly 的回复:

如果我把每一个button设定一个序号，在创建button的时候把这个序号赋值，在button_Click中得到这个序号，要怎么实现？

用Tag属性记录序号 btn1.Tag = 1; 然后获取 var btn = e.OriginalSource as Button; var index = btn.Tag as Int32;

[subMain]

前台：

<StackPanel>
    <TextBox Height="25" TextAlignment="Right" Text="{Binding Path=Value, Mode=TwoWay}" />
    <WrapPanel x:Name="ButtonsPanel" Background="Azure" ItemWidth="50" ItemHeight="50" />
</StackPanel>

后台：

private string _value;

public string Value
{
    get { return _value; }
    set
    {
        _value = value;
        OnPropertyChanged("Value");
    }
}

public event PropertyChangedEventHandler PropertyChanged;

public Window1()
{
    Value = "";
    this.DataContext = this;
    InitializeComponent();

    InitializeButtons();
}

private void OnPropertyChanged(string propertyName)
{
    if (PropertyChanged != null)
        PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}

private void InitializeButtons()
{
    // 动态生成9个按钮
    for (int i = 1; i < 10; i++)
    {
        var newButton = new Button()
        {
            Content = i,
            Width = 40,
            Height = 40,
            Tag = i,        // 用于区分按钮
        };
        // 动态添加事件处理
        newButton.Click += Button_Click;

        ButtonsPanel.Children.Add(newButton);
    }
}

// 该处理执行按钮的单击事件
private void Button_Click(object sender, RoutedEventArgs e)
{
    // 取得按钮的Tag
    var number = (int)((Button)sender).Tag;

    Value += number.ToString();
}

[Veary]

话说 就是这样吧

Button button = new Button();
            button.Background = Brushes.Aqua;
            button.Content = "+1";
            button.Width = 50;
            button.Height = 20;
            button.HorizontalAlignment = System.Windows.HorizontalAlignment.Right;
            button.VerticalAlignment = System.Windows.VerticalAlignment.Bottom;
            button.Margin = new Thickness(0,0,50,50);
            button.Click += button_Click;//button_Click是一个符合Button点击委托类型的方法，给了就行了，下边写这个方法

        private void button_Click(object sender, RoutedEventArgs e)
        {
            //do something...
        }  

[一线光芒]

9楼正解...