如何在c#中以编程方式在每次单击按钮时添加新的组合框实例

using System;
using System.Windows.Forms;

namespace DynamicComboBoxExample
{
    public partial class MainForm : Form
    {
        private int comboBoxCount = 0; // 记录已创建的组合框数量

        public MainForm()
        {
            InitializeComponent();
        }

        private void addButton_Click(object sender, EventArgs e)
        {
            // 创建新的组合框实例
            ComboBox newComboBox = new ComboBox();
            newComboBox.Name = "comboBox" + comboBoxCount.ToString();
            newComboBox.Location = new System.Drawing.Point(10, 30 + comboBoxCount * 30);
            newComboBox.Size = new System.Drawing.Size(150, 21);
            newComboBox.DropDownStyle = ComboBoxStyle.DropDownList; // 设置为下拉列表样式

            // 添加选项
            newComboBox.Items.Add("选项1");
            newComboBox.Items.Add("选项2");
            newComboBox.Items.Add("选项3");

            // 将新的组合框实例添加到容器控件中
            containerControl.Controls.Add(newComboBox);

            comboBoxCount++;
        }
    }
}