Intersoft ClientUI Documentation
PageDescriptor Property
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Intersoft.Client.UI.Data Namespace > UXDataPager Class : PageDescriptor Property






Gets or sets the descriptor object that encapsulates the paging related information.

Syntax

Visual Basic (Declaration) 
<CategoryAttribute("Common Properties")>
Public Property PageDescriptor As PageDescriptor
Visual Basic (Usage)Copy Code
Dim instance As UXDataPager
Dim value As PageDescriptor
 
instance.PageDescriptor = value
 
value = instance.PageDescriptor
C# 
[CategoryAttribute("Common Properties")]
public PageDescriptor PageDescriptor {get; set;}
Delphi 
public read-write property PageDescriptor: PageDescriptor;
JScript 
CategoryAttribute("Common Properties")
public function get,set PageDescriptor : PageDescriptor
Managed Extensions for C++ 
[CategoryAttribute("Common Properties")]
public: __property PageDescriptor* get_PageDescriptor();
public: __property void set_PageDescriptor( 
   PageDescriptor* value
);
C++/CLI 
[CategoryAttribute("Common Properties")]
public:
property PageDescriptor^ PageDescriptor {
   PageDescriptor^ get();
   void set (    PageDescriptor^ value);
}

Remarks

The UXDataPager control provides a configurable user interface for paging through a data collection. Similar to the other ClientUI data controls, UXDataPager supports both server side and client side operation.

Client Data Operation

Client data operation means that the data operation, in this case data paging, is executed in the client side against the data source provided to the UXDataPager. To use this operation, you set the QueryOperation property to Client.

You typically use a collection that implements IPagedCollectionView as the data source. The IPagedCollectionView provides paging support to the underlying collection. You can bind the UXDataPager to any IEnumerable collection; however, the UXDataPager will behave as if the data is all on a single page. To provide paging functionality for an IEnumerable collection, you can wrap the collection in a PagedCollectionView instance.

To learn how to implement data paging using UXDataPager, see How-to: Implement Data Paging using UXDataPager.

Server Data Operation

Server data operation means that data operation in this case data paging is processed in the server. This means that UXDataPager does not handle the paging operation by its own. Instead, UXDataPager provides the query information allowing you to process it further.

To use this mode, you set the QueryOperation property to Server. When this mode is selected, UXDataPager will not attempt to perform the data operation on the given data source. Instead, it will store and distribute the query information on certain properties such as PageIndex, PageSize and TotalItemCount which are defined in the PageDescriptor property. When one of these properties change, the QueryChanged event of the associated QueryDescriptor will be raised. This allows you to streamline the query processing in a centralized function, which is one of the strong benefits of QueryDescriptor. For more information about QueryDescriptor, see QueryDescriptor Overview.

To learn how to implement data paging using PageDescriptor and UXDataPager, see How-to: Implement Data Paging using PageDescriptor and UXDataPager.

Requirements

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

See Also

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