Intersoft ClientUI Documentation
QueryOperation Property (UXGridView)
| Intersoft.Client.UI.Data Namespace > UXGridView Class : QueryOperation Property |
<CategoryAttribute("Common Properties")> Public Property QueryOperation As QueryOperation
Dim instance As UXGridView Dim value As QueryOperation instance.QueryOperation = value value = instance.QueryOperation
[CategoryAttribute("Common Properties")] public QueryOperation QueryOperation {get; set;}
[CategoryAttribute("Common Properties")] public: property QueryOperation QueryOperation { QueryOperation get(); void set ( QueryOperation value); }
It is often useful to view and interact with information in a data grid control such as UXGridView in different ways by grouping, sorting, filtering or paging the data. To handle this data operation, UXGridView provides two approaches that you can choose from by setting the QueryOperation property.
Client data operation means that the data operation, such as sorting, filtering and paging; are executed in the client side against the data source provided to the UXGridView. To use this operation, you set the QueryOperation property to Client.
You typically use a collection that implements IPagedCollectionView as the data source or encapsulate the collection to a PagedCollectionView class. To learn how to perform client-side sorting, filtering and paging using UXGridView, see How-to: Implement Client-side Sorting, Filtering and Paging using UXGridView.
Server data operation means that the data operation, such as sorting, filtering and paging; are processed in the server side. In this mode, UXGridView does not handle the data operation by its own. It will simply provide the query information allowing you to process it further to a data service.
To use this mode, you set the QueryOperation property to Server. When this mode is selected, UXGridView will not attempt to perform the data operation on the given data source. Instead, it will store and distribute the query information on several properties such as FilterDescriptors, SortDescriptors and 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 perform server-side sorting, filtering and paging using UXGridView, see How-to: Implement Server-side Sorting, Filtering and Paging using UXGridView.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2