Question

I am trying to retrieve data from a List<T> for paging purposes. How can do this in LINQ:

private List<MyData> GetPagingData(int pageNumber)
{
    if (pageNumber == 1)
        return myData.Take(8);

    // What to do here?
}

This works for page one. It returns the top 8 records. How do I make this work for page 2, etc…

Answer 1

If you want the page number to start at 0:

private IEnumerable<MyData> GetPagingData(int pageNumber, int perPage)
{
     return myData.Skip(pageNumber * perPage).Take(perPage);
}  

If you want the page number to start at 1:

private IEnumerable<MyData> GetPagingData(int pageNumber, int perPage)
{
     return myData.Skip((pageNumber-1) * perPage).Take(perPage);
}