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


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    AbortQueryItemCount Event (DataGridVirtualizingCollectionView)
    In This Topic
    Raised when a QueryItemCount event has been raised for a page of data that is no longer needed and whose corresponding AsyncQueryInfo object's EndQuery method has not yet been called, allowing the pending operation to be canceled and preventing useless processing on the data server.
    Syntax
    'Declaration
     
    Public Event AbortQueryItemCount As EventHandler(Of QueryItemCountEventArgs)
    'Usage
     
    Dim instance As DataGridVirtualizingCollectionView
    Dim handler As EventHandler(Of QueryItemCountEventArgs)
     
    AddHandler instance.AbortQueryItemCount, handler
    public event EventHandler<QueryItemCountEventArgs> AbortQueryItemCount
    Event Data

    The event handler receives an argument of type QueryItemCountEventArgs containing data related to this event. The following QueryItemCountEventArgs 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 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