LINQ and pagination [duplicate]

Answer 1

.Skip and .Take extension methods could be used:

var result = (from c in Customers
              select new 
              {
                  c.City,
                  c.ContactName
              }
              ).Skip(5).Take(5);

Answer 2

The LINQ Take() function will limit how many items are taken. The Skip() function will ignore the first n items. Something like this might work:

myDataSource.Skip(pageSize * curPage).Take(pageSize)

Answer 3

I always use the following code:

public static class PagingExtensions
{
    //used by LINQ to SQL
    public static IQueryable<TSource> Page<TSource>(this IQueryable<TSource> source, int page, int pageSize)
    {
        return source.Skip((page - 1) * pageSize).Take(pageSize);
    }

    //used by LINQ
    public static IEnumerable<TSource> Page<TSource>(this IEnumerable<TSource> source, int page, int pageSize)
    {
        return source.Skip((page - 1) * pageSize).Take(pageSize);
    }

}

That is a static class, which you can include in your sources. After adding this class you can do the following:

MyQuery.Page(pageNumber, pageSize)