/// <summary>
/// 从<see cref="T:System.Collections.Generic.IEnumerable`1" />创建一个<see cref="T:System.IPageResult`1" />
/// </summary>
/// <typeparam name="TSource"></typeparam>
/// <param name="source"></param>
/// <param name="page"></param>
/// <param name="pagesize"></param>
/// <returns></returns>
public static IPageResult <TSource> ToPage <TSource>(this IEnumerable <TSource> source, int pageIndex, int pageSize, int total)
{
if (source is IList <TSource> )
{
return(PageResult.Create(source as IList <TSource>, pageIndex, pageSize, total));
}
if (source is TSource[])
{
return(PageResult.Create(source as TSource[], pageIndex, pageSize, total));
}
return(PageResult.Create(source.ToList(), pageIndex, pageSize, total));
}
/// <summary>
/// 从<see cref="T:System.Collections.Generic.IEnumerable`1" />创建一个<see cref="T:System.IPageResult`1" />
/// </summary>
/// <typeparam name="TSource"></typeparam>
/// <param name="source"></param>
/// <param name="page"></param>
/// <param name="pagesize"></param>
/// <returns></returns>
public static IPageResult <TSource> ToPage <TSource>(this IEnumerable <TSource> source, int pageIndex, int pageSize)
{
int total = source.Select(o => 1).Count();
return(PageResult.Create(source.Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList(), pageIndex, pageSize, total));
}