如何在自己的线程上运行.Net: SQLCommand，并允许用户在运行过程中安全地取消它

using System;
using System.Data.SqlClient;
using System.Threading;
using System.Threading.Tasks;

public class Program
{
    private static CancellationTokenSource cancellationTokenSource;

    public static void Main()
    {
        cancellationTokenSource = new CancellationTokenSource();

        // 创建新线程并执行SQL命令
        Task.Run(() => ExecuteSqlCommand(cancellationTokenSource.Token));

        // 模拟用户界面，提供取消操作的选项
        Console.WriteLine("按任意键取消操作...");
        Console.ReadKey();

        // 用户点击取消按钮，取消操作
        cancellationTokenSource.Cancel();

        Console.WriteLine("操作已取消。");
        Console.ReadKey();
    }

    private static void ExecuteSqlCommand(CancellationToken cancellationToken)
    {
        string connectionString = "YourConnectionString";
        string sqlCommandText = "YourSQLCommand";

        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            connection.Open();

            using (SqlCommand command = new SqlCommand(sqlCommandText, connection))
            {
                // 设置取消操作的回调函数
                cancellationToken.Register(() => command.Cancel());

                try
                {
                    // 执行SQL命令
                    command.ExecuteNonQuery();
                    Console.WriteLine("SQL命令执行成功。");
                }
                catch (SqlException ex)
                {
                    // 检查是否是由于取消操作引起的异常
                    if (cancellationToken.IsCancellationRequested)
                    {
                        Console.WriteLine("操作已取消。");
                    }
                    else
                    {
                        Console.WriteLine("SQL命令执行失败：" + ex.Message);
                    }
                }
            }
        }
    }
}