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Xceed Toolkit Plus for WPF v5.1 Documentation
Xceed.Wpf.DataGrid.Toolkit Assembly / Xceed.Wpf.DataGrid Namespace / QueryItemCountEventArgs Class


In This Topic
    QueryItemCountEventArgs Class
    In This Topic
    Provides information on the DataGridVirtualizingCollectionView to which the grid is bound including the number of items that it should contain.
    Object Model
    QueryItemCountEventArgs ClassDataGridVirtualizingCollectionView Class
    Syntax
    'Declaration
 

    Public Class QueryItemCountEventArgs 
   Inherits System.EventArgs
    'Usage
 

    Dim instance As QueryItemCountEventArgs
    public class QueryItemCountEventArgs : System.EventArgs
    Remarks
    Data virtualization requires that certain "query" events be handled in order for prerequisite information and new items to be provided when necessary. Through the QueryItemCount event, which is 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.
    Inheritance Hierarchy

    System.Object
       System.EventArgs
          Xceed.Wpf.DataGrid.QueryItemCountEventArgs

    Public Properties
     NameDescription
    Public PropertyCollectionViewGets the DataGridVirtualizingCollectionView to which the grid is bound.  
    Public PropertyCountGets or sets the number of items contained in the collection view.  
    Public PropertyGroupPath

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

     
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    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

    QueryItemCountEventArgs Members
    Xceed.Wpf.DataGrid Namespace

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