CollectionView.Count Property (System.Windows.Data)

Count Property

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This page is specific to

Microsoft Visual Studio 2010/.NET Framework 4

Other versions are also available for the following:

.NET Framework Class Library

CollectionView..::.Count Property

Gets the number of records in the view.

Namespace: System.Windows.Data
Assembly: PresentationFramework (in PresentationFramework.dll)

Syntax

Visual Basic

Public Overridable ReadOnly Property Count As Integer
    Get

public virtual int Count { get; }

Visual C++

public:
virtual property int Count {
    int get ();
}

abstract Count : int
override Count : int

Property Value

Type: System..::.Int32
The number of records in the view, or –1 if the number of records is unknown.

Remarks

If a filter is set, this property value only includes items that pass the filter. If the underlying collection is of type IEnumerable, this is an O(N) operation. This value is cached until the collection changes.

Notes to Inheritors

When deriving from CollectionView, override this property to provide a more efficient implementation.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

CollectionView Class

System.Windows.Data Namespace