C#代码如何检查上下文连接(进程内连接)是否可以使用？

using System;
using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = "Your_Connection_String";
        
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            try
            {
                connection.Open();
                Console.WriteLine("Connection is available.");
            }
            catch (SqlException ex)
            {
                Console.WriteLine("Connection is not available. Error: " + ex.Message);
            }
        }
    }
}