C# winform实现记住用户登录的登录状态

namespace DMS
{
    public class LoginInfo
    {
        public string AccountID
        {
            set;
            get;
        }

        public string AccountPassWord
        {
            set;
            get;
            
        }

        public DateTime AccountLoginTime
        {
            set;           
            get;
            
        }
        private static LoginInfo _CurrentUser = null;
        public static LoginInfo CurrentUser
        {
            get
            {
                if(_CurrentUser == null)
                {
                    _CurrentUser = new LoginInfo();
                }
                return _CurrentUser;
            }
        }


    }
}
namespace DMS
{
    public class LoginInfo