Class Paging
Do Paging to only return a limited amount of results + show how many such pages exist and which Page we are on.
The Paging DataSource is part of the Standard EAV Data Sources. It will limit the items returned to a page containing just a few items, and will also provide a paging-information so that the UI knows what page it's on and how many pages remain.
How to use with the VisualQuery
When using the VisualQuery you can just drag it into your query. This is what it usually looks like:
The above example shows:
- a content-type filter limiting the items to type Company
- a Paging which only passes on the first 3 companies of page 1
Using Url Parameters for Paging
This example shows how you can use the Url Parameter to page through the results:
...you could also set the page size from other tokens like url or app-configuration, like this:
Programming With The Paging DataSource
We recommend to use the VisualQuery where possible, as it's easier to understand and is identical for C# and JavaScript. It's also better because it separates data-retrieval from visualization.
Read also
Demo App and further links
You should find some examples in this demo App
History
- Introduced in EAV 4.x, 2sxc ?
API Documentation
Inheritance
Implements
Inherited Members
Namespace: ToSic.Eav.DataSources
Assembly: ToSic.Eav.DataSources.dll
Syntax
[PublicApi_Stable_ForUseInYourCode]
[VisualQuery(NiceName = "Paging", UiHint = "Split data into pages and forward just one batch", Icon = "auto_stories", Type = DataSourceType.Logic, NameId = "ToSic.Eav.DataSources.Paging, ToSic.Eav.DataSources", DynamicOut = false, In = new string[]{"Default*"}, ConfigurationType = "|Config ToSic.Eav.DataSources.Paging", HelpLink = "https://r.2sxc.org/DsPaging")]
public sealed class Paging : DataSourceBase, IDataSource, IAppIdentity, IZoneIdentity, IAppIdentityLight, ICacheInfo, ICacheKey, ICacheExpiring, ITimestamped, ICanPurgeListCache, IHasLog, IDataTarget, IAppIdentitySync, IDataSourceLinkable
Remarks
Had a major, breaking update in v15. Consult the guide to upgrade your custom data sources.
Properties
| Improve this Doc View SourcePageNumber
The Page number to show - defaults to 1
Declaration
[Configuration(Fallback = 1)]
public int PageNumber { get; set; }
Property Value
Type | Description |
---|---|
System.Int32 |
PageSize
The Page size in the paging. Defaults to 10.
Declaration
[Configuration(Fallback = 10)]
public int PageSize { get; set; }
Property Value
Type | Description |
---|---|
System.Int32 |