/// <summary>
/// 若传入的用户名和密码正确，则返回一个相应的权限的Control类的实例
/// </summary>
/// <param name="loginName"></param>
/// <param name="password"></param>
/// <returns></returns>
public static Staff login(string loginName, string password)
{
Person p = DB.getStaff(loginName);
Staff c = null;
if (p.password.Equals(password))
{
switch (p.level)
{
case Level.buyer:
c = new Buyer();
break;
case Level.seller:
c = new Seller();
break;
case Level.manager:
c = new Manager();
break;
default:
break;
}
}
return(c);
}
/// <summary>
/// 若传入的用户名和密码正确，则返回一个相应的权限的Control类的实例
/// </summary>
/// <param name="loginName"></param>
/// <param name="password"></param>
/// <returns></returns>
public static async Task <Staff> login(string loginName, string password)
{
Person p;
try
{
p = await DB.getStaff(loginName);
}
catch (NotFindException)
{
return(null);
}
Staff c = null;
if (p.password.Equals(password))
{
switch (p.level)
{
case Level.buyer:
c = new Buyer(p.level, loginName, password, p.name);
break;
case Level.seller:
c = new Seller(p.level, loginName, password, p.name);
break;
case Level.manager:
c = new Manager(p.level, loginName, password, p.name);
break;
default:
break;
}
}
return(c);
}