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Xceed Toolkit Plus for WPF v5.1 Documentation
Xceed.Wpf.DataGrid.Toolkit Assembly / Xceed.Wpf.DataGrid Namespace / DataGridVirtualizingCollectionView Class / QueryItemCount Event


In This Topic
    QueryItemCount Event (DataGridVirtualizingCollectionView)
    In This Topic
    Raised every time the grid is loaded or refreshed or its state changes (e.g., new sorting or filtering criteria are applied), the total number of records in the underlying data source must be provided, taking into account any filters that are currently applied to the items. This event must be handled.
    Syntax
    'Declaration
 

    Public Event QueryItemCount As EventHandler(Of QueryItemCountEventArgs)
    'Usage
 

    Dim instance As DataGridVirtualizingCollectionView
Dim handler As EventHandler(Of QueryItemCountEventArgs)
 
AddHandler instance.QueryItemCount, handler
    public event EventHandler<QueryItemCountEventArgs> QueryItemCount
    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
    CollectionViewGets the DataGridVirtualizingCollectionView to which the grid is bound.  
    CountGets or sets the number of items contained in the collection view.  
    GroupPath

    Gets a read only collection of DataGridGroupInfo objects, which provide information on the parent groups.

     
    Supported Frameworks

    .NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

    .NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

    See Also

    Reference

    DataGridVirtualizingCollectionView Class
    DataGridVirtualizingCollectionView Members

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