public Pagination(IEnumerable <T> items, int totalItems, IPaginationSetting settings)
{
if (items == null)
{
throw new ArgumentNullException(nameof(items));
}
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
var page = settings.Page;
var pageSize = settings.PageSize;
if (page < 1)
{
throw new ArgumentOutOfRangeException("page", page, "Value must be greater than zero.");
}
if (pageSize < 1)
{
throw new ArgumentOutOfRangeException("page", page, "Value must be greater than zero.");
}
if (totalItems < 0)
{
throw new ArgumentOutOfRangeException("page", page, "Value cannot be less than zero.");
}
this.items = items.ToList();
this.Page = page;
this.PageSize = pageSize;
this.TotalItems = totalItems;
}
public ListTODOResponse(IEnumerable <TodoEntity> items, int totalItems, IPaginationSetting settings) : base(items, totalItems, settings)
{
}
public static Pagination <T> AsPagination <T>(this IQueryable <T> query, IPaginationSetting settings)
{
var results = query.Skip((settings.Page - 1) * settings.PageSize).Take(settings.PageSize);
return(new Pagination <T>(results, query.Count(), settings));
}
