我正在检查sort参数并构建一堆if语句：
if (sortDirection == "ASC")
{
if (sortBy == "Id")
return customerList.OrderBy(x => x.Id).Skip(startIndex).Take(pageSize).ToList();
if (sortBy == "FirstName")
return customerList.OrderBy(x => x.FirstName).Skip(startIndex).Take(pageSize).ToList();
if (sortBy == "City")
return customerList.OrderBy(x => x.City).Skip(startIndex).Take(pageSize).ToList();
}
else
{
if (sortBy == "Id")
return customerList.OrderByDescending(x => x.Id).Skip(startIndex).Take(pageSize).ToList();
if (sortBy == "FirstName")
return customerList.OrderByDescending(x => x.FirstName).Skip(startIndex).Take(pageSize).ToList();
if (sortBy == "City")
return customerList.OrderByDescending(x => x.City).Skip(startIndex).Take(pageSize).ToList();
}
我该如何做得更好？
