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DataManipulator.FilterTopN Method (Int32, String, String)

Filters out data points in one or more series except for a specified number of points. The points that aren't filtered correspond to points in the first series that have the largest first Y-values.

Namespace:  System.Web.UI.DataVisualization.Charting
Assembly:  System.Web.DataVisualization (in System.Web.DataVisualization.dll)
'Declaration
Public Sub FilterTopN ( _
	pointCount As Integer, _
	inputSeriesNames As String, _
	outputSeriesNames As String _
)

Parameters

pointCount
Type: System.Int32

The number of data points that the filtering operation will not remove.

inputSeriesNames
Type: System.String

A comma-separated list of names of the Series to be filtered.

outputSeriesNames
Type: System.String

A comma-separated list of names of the Series that store the filtered data. Make sure that the number of output series matches the number of input series, otherwise an exception will be thrown.

.NET Framework

Supported in: 4.5.1, 4.5, 4

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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