/// <summary>
/// Initialize a new instance with specified information.
/// </summary>
/// <param name="source">The data source to be paging.</param>
/// <param name="pageSize">The size of each page.</param>
/// <param name="pageIndex">The index of the current page, start from 1.</param>
/// <param name="cacheOptions">Additional cacheOptions for the paged list.</param>
protected DynamicPagedListBase(TCollection source, int pageSize, int pageIndex = 1,
DynamicPagedListCacheOptions cacheOptions = null)
{
// Default parameters
var defaultOptions = new DynamicPagedListCacheOptions
{
CurrentPageCacheMode = CacheMode.Manual,
TotalCountCacheMode = CacheMode.Manual
};
// Merge cacheOptions
cacheOptions = cacheOptions ?? defaultOptions;
// Initialize the data source
Source = source != null ? source : throw new ArgumentNullException(nameof(source));
// Set Paging information
PageSize = pageSize;
PageIndex = pageIndex;
// Caching total count for first time
TotalCountCacheInternal = new Cacheable <int>(GetTotalCount, cacheMode: cacheOptions.TotalCountCacheMode);
// Caching current page for first time
CurrentPageCacheInternal = new Cacheable <TCollection>(GetCurrentPage, CacheData, cacheOptions.CurrentPageCacheMode);
// Set initialized flag
IsInitialized = true;
}
/// <summary>
/// Initialize a new instance with specified information.
/// </summary>
/// <param name="source">The data source to be paging.</param>
/// <param name="pageSize">The size of each page.</param>
/// <param name="pageIndex">The index of the current page, start from 1.</param>
/// <param name="cacheOptions">Additional cacheOptions for the paged list.</param>
public AsyncPagedList(IAsyncEnumerable <T> source, int pageSize, int pageIndex = 1,
DynamicPagedListCacheOptions cacheOptions = null)
{
// Exception handling
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
// Default parameters
var defaultOptions = new DynamicPagedListCacheOptions
{
CurrentPageCacheMode = CacheMode.Manual,
TotalCountCacheMode = CacheMode.Manual
};
// Merge cacheOptions
cacheOptions = cacheOptions ?? defaultOptions;
// Initialize the data source
Source = source;
// Set Paging information
PageSize = pageSize;
PageIndex = pageIndex;
// Caching total count for first time
TotalCountCacheInternal = new AsyncCacheable <Task <int> >(GetTotalCountAsync, cacheMode: cacheOptions.TotalCountCacheMode);
// Caching current page for first time
CurrentPageCacheInternal = new AsyncCacheable <IAsyncEnumerable <T> >(GetCurrentPageAsync, CacheDataAsync, cacheOptions.CurrentPageCacheMode);
// Set initialized flag
IsInitialized = true;
}
/// <summary>
/// Initialize a new instance with specified information.
/// </summary>
/// <param name="source">The data source to be paging.</param>
/// <param name="pageSize">The size of each page.</param>
/// <param name="pageIndex">The index of the current page. Page index starts from 1.</param>
/// <param name="cacheOptions">Additional options for the paged list.</param>
public DynamicPagedList(IEnumerable <T> source, int pageSize, int pageIndex = 1,
DynamicPagedListCacheOptions cacheOptions = null) : base(source, pageSize, pageIndex, cacheOptions)
{
}
/// <summary>
/// Convert <see cref="IQueryable{T}" /> object into a <see cref="DynamicQueryablePagedList{T}" /> object.
/// </summary>
/// <typeparam name="T">The element type in the data source.</typeparam>
/// <param name="source">The source <see cref="IQueryable{T}" /> object to be converting.</param>
/// <param name="pageSize">The size of each page.</param>
/// <param name="pageIndex">The index of the current page. Page index starts from 1.</param>
/// <param name="cacheOptions">Options for the paged list.</param>
/// <returns>A <see cref="DynamicQueryablePagedList{T}" /> object created by paging the <paramref name="source" /> object.</returns>
public static DynamicQueryablePagedList <T> ToDynamicPagedList <T>(this IQueryable <T> source, int pageSize, int pageIndex = 1,
DynamicPagedListCacheOptions cacheOptions = null)
=> new DynamicQueryablePagedList <T>(source, pageSize, pageIndex, cacheOptions);
/// <summary>
/// Convert <see cref="IEnumerable{T}" /> object into a <see cref="DynamicPagedList{T}" /> object.
/// </summary>
/// <typeparam name="T">The element type in the data source.</typeparam>
/// <param name="source">The source <see cref="IEnumerable{T}" /> object to be converting.</param>
/// <param name="pageSize">The size of each page.</param>
/// <param name="pageIndex">The index of the current page. Page index starts from 1.</param>
/// <param name="cacheOptions">Options for the paged list.</param>
/// <returns>A <see cref="DynamicPagedList{T}" /> object created by paging the <paramref name="source" /> object.</returns>
public static DynamicPagedList <T> ToDynamicPagedList <T>(this IEnumerable <T> source, int pageSize, int pageIndex = 1,
DynamicPagedListCacheOptions cacheOptions = null)
{
return(new DynamicPagedList <T>(source, pageSize, pageIndex, cacheOptions));
}
