C# 为单个事件处理程序动态生成按钮

Question

我需要为多个按钮使用单个事件处理程序。我根据数据库查询通过 while 循环生成了这些按钮。我创建了一个方法

void MyButtonClick(object sender, EventArgs e)
{ 
}

我是 C# 新手。如何将所有按钮的事件绑定(bind)到单个处理程序。

生成按钮的代码:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {         
        try
        {
            MydbConnection db = new MydbConnection();
            MySqlConnection con = db.connection();
            MySqlCommand cmd = new MySqlCommand();

            cmd.CommandText = "select * from categories where online = 1";
            cmd.Connection = con;

            MySqlDataReader rd;
            con.Open();
            rd = cmd.ExecuteReader();

            int i = 1;
            while (rd.Read())
            {
                Button btn = new Button();
                btn.Name = "btn-" + i.ToString();
                btn.Tag = i;
                btn.Text = rd.GetString(2).ToString();

                btn.Height = 60;
                btn.Width = 100;
                btn.Location = new Point(900, 60 * i + 10);

                this.Controls.Add(btn);
                i++;
            }
        }
        catch (Exception ex) 
        {
            MessageBox.Show(ex.Message);
        }
    }
}

Answer 1

欢迎来到 SO。您可以在 this.Controls.Add(btn);

之前添加它

btn.Click += MyButtonClick;