Generic Orderby LINQ - linq

Question

I have a generic repository method to enable server side paging:
public virtual IEnumerable<T> GetList(out int totalPages, Expression<Func<T, bool>> filter = null,
Expression<Func<T, object>> orderby = null,
bool ascending = true,
string includeProperties = "",
int pageSize = 10, int pageNumber = 1)
{
IQueryable<T> query = c.Set<T>();
if (filter != null)
{
query = query.Where(filter);
}
query = includeProperties.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Aggregate(query, (current, includeProp) => current.Include(includeProp));
if (orderby != null)
{
query = #ascending ? query.OrderBy(#orderby) : query.OrderByDescending(#orderby);
}
else
{
query = #ascending ? query.OrderBy(o => o.Id) : query.OrderByDescending(o => o.Id);
}
//totalPages = (int) Math.Ceiling((double)(Queryable.Count(query) / pageSize));
totalPages = 1;
if (pageSize > 0)
{
var skip = 0;
var take = pageSize;
if (pageNumber > 1)
{
skip = (pageNumber - 1) * pageSize;
take = pageSize + skip;
}
query = query.Take(take);
query = query.Skip(skip);
}
return query.ToList();
}
T is a base class inherited by my entities
I call this repository method from my service. and i call my service from my controller.
Now from my controller how do i create my orderby expression so that i can pass any column name?
What i've tried so far (found on stackoverflow):
var _OrderByProperty = typeof(Year).GetProperty("Id");
var _OrderByParameter = Expression.Parameter(typeof(Year), "x");
var _OrderByBody = Expression.Property(_OrderByParameter, _OrderByProperty.Name);
var _OrderByConverted = Expression.Convert(_OrderByBody, typeof(Object));
var _OrderByLambda = Expression.Lambda<Func<Year, object>>
(_OrderByConverted, _OrderByParameter);
var list = s.GetList(orderby: _OrderByLambda, totalPages: out totalPages, pageNumber: pageNumber, pageSize: pageSize, ascending: isAsc);
i'm getting the error
Unable to cast the type 'System.Int32' to type 'System.Object'. LINQ to Entities only supports casting EDM primitive or enumeration types.