System.Linq.IOrderedQueryable' does not contain a definition for 'Skip' error while trying to use Skip method

Question

I'm trying to implement the paging feature that EF provides. I thought that I only needed to add the simple Skip() and Take() into my query, but then I get this message:

Error 4 'System.Linq.IOrderedQueryable' does not contain a definition for 'Skip' and the best extension method overload 'System.Linq.Queryable.Skip(System.Linq.IQueryable, int)' has some invalid arguments D:\Biblioteker\HourRegistrationApplication\HourRegistrationService\HourRegistrationWCF\Service.cs 190 24 HourRegistrationWCF

I'm not quite sure about what I need to do here? I've googled a bit but didn't find anything useful.

GetAllCustomers()

public List<CustomerDTO> GetAllCustomers(string take, string skip)
    {
        var custList = new List<CustomerDTO>();
        var list = DAO.TDKanBanInstance.Customer.OrderBy(x => x.Name).Skip(skip).Take(take).ToList();
        foreach (var cust in list)
        {
            custList.Add(new CustomerDTO()
            {
                Name = cust.Name
            });
        }
        return custList;
    }

WORKING SOLUTION

The take and skip needs to be int of course.

public List<CustomerDTO> GetAllCustomers(string take, string skip)
    {
        int skipInt = Int32.Parse(skip);
        int takeInt = Int32.Parse(take);
        var custList = new List<CustomerDTO>();
        var list = DAO.TDKanBanInstance.Customer.OrderBy(x => x.Name).Skip(skipInt).Take(takeInt).ToList();
        foreach (var cust in list)
        {
            custList.Add(new CustomerDTO()
            {
                Name = cust.Name
            });
        }
        return custList;
    }

Answer 1

The arguments of Skip and Take must be of type int, as they indicate the number of elements to skip and take, respectively, not string as in the question.