/// <summary>
/// Converts query results to an <see cref="ListResult{T}"/> object.
/// </summary>
/// <typeparam name="TSource">The type of items.</typeparam>
/// <param name="source">The query to convert.</param>
/// <param name="pageIndex">The index of the page of results to return. Use 1 to indicate the first page.</param>
/// <param name="pageSize">The size of the page of results to return. <paramref name="pageIndex" /> is non-zero-based.</param>
/// <param name="cancellationToken">A token to observe while waiting for the task to complete.</param>
/// <returns>
/// The task object representing the asynchronous operation.
/// </returns>
public static async Task <ListResult <TSource> > ToListResultAsync <TSource>(this IQueryable <TSource> source, int pageIndex, int pageSize, CancellationToken cancellationToken)
{
int total = await source.CountAsync(cancellationToken);
if (total == 0)
{
return(ListResult <TSource> .Empty);
}
return(ListResult.Create(await source.Paging(pageIndex, pageSize).ToArrayAsync(cancellationToken), total));
}
/// <summary>
/// Gets a collection of items, in a page of data, and materializes the result-set to a read-only collection.
/// </summary>
/// <typeparam name="T">The type of the query.</typeparam>
/// <param name="context">The context.</param>
/// <param name="query">The query.</param>
/// <param name="pageIndex">Index of the page.</param>
/// <param name="pageSize">The size of the page of results to return. <paramref name="offset" /> is non-zero-based.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// A collection of the <see cref="T" /> objects.
/// </returns>
public static async Task <ListResult <T> > FindItemsAsync <T>(this PartnerDbContext context, IQueryable <T> query, int pageIndex, int pageSize, CancellationToken cancellationToken)
{
int count = await query.CountAsync(cancellationToken);
if (count == 0)
{
return(ListResult <T> .Empty);
}
return(ListResult.Create(await query.Paging(pageIndex, pageSize).ToListAsync(cancellationToken), count));
}
/// <summary>
/// Converts query results to an <see cref="ListResult{T}"/> object.
/// </summary>
/// <typeparam name="TSource">The type of items.</typeparam>
/// <param name="source">The query to convert.</param>
/// <param name="cancellationToken">A token to observe while waiting for the task to complete.</param>
/// <returns>
/// The task object representing the asynchronous operation.
/// </returns>
public static async Task <ListResult <TSource> > ToListResultAsync <TSource>(this IQueryable <TSource> source, CancellationToken cancellationToken)
{
return(ListResult.Create(await source.ToArrayAsync(cancellationToken)));
}