Xceed DataGrid for WPF v7.3 Documentation
Xceed.Wpf.DataGrid Assembly / Xceed.Wpf.DataGrid Namespace / DataGridVirtualizingCollectionView Class / QueryGroups Event


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    QueryGroups Event (DataGridVirtualizingCollectionView)
    In This Topic
    Raised to allow the data items contained in a virtualized collection view to be grouped using the information provided by the QueryGroupsEventsArgs received in the event parameters.
    Syntax
    'Declaration
     
    Public Event QueryGroups As EventHandler(Of QueryGroupsEventArgs)
    'Usage
     
    Dim instance As DataGridVirtualizingCollectionView
    Dim handler As EventHandler(Of QueryGroupsEventArgs)
     
    AddHandler instance.QueryGroups, handler
    public event EventHandler<QueryGroupsEventArgs> QueryGroups
    Event Data

    The event handler receives an argument of type QueryGroupsEventArgs containing data related to this event. The following QueryGroupsEventArgs properties provide information specific to this event.

    PropertyDescription
    Gets an AsyncQueryInfo that provides the information necessary to retrieve the next batch of items.  
    Gets the child group description.  
    Gets the name of the item property that should be queried in order to find its distinct values and their count taking into account the parent groups, which can be retrieved through the GroupPath property.  
    Gets the direction in which child groups are sorted.  
    Gets the DataGridVirtualizingCollectionView to which the grid is bound.  
    Gets a read only collection of DataGridGroupInfo objects, which provide information on the parent groups.  
    true if the event is asynchronous, otherwise false. By default, false. (Inherited from Xceed.Wpf.DataGrid.AsyncQueryEventArgs)
    Requirements

    Target Platforms: Windows 11, Windows, 10, 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

    See Also