Public Overloads Function FindValue( _
   ByVal valueToFind As Double, _
   ByVal useValue As String _
) As DataPoint

Visual Basic (Usage)	Copy Code
Dim instance As DataPointCollection Dim valueToFind As Double Dim useValue As String Dim value As DataPoint   value = instance.FindValue(valueToFind, useValue)

public DataPoint FindValue( 
   double valueToFind,
   string useValue
)

Parameters

valueToFind

The value to find (e.g. 15.5).

Point value to find.

useValue

The point value to be examined (e.g. X, Y, Y2, etc.).

Which point value to use (X, Y1, Y2,...).

Return Value

The first DataPoint object in the DataPointCollection that has the specified X or Y-value (e.g. X, Y, Y2, etc.). If no matching data point is found then null will be returned.

In the following sample we search the data points in the DataPointCollection for a point that has a second Y-value of 42 (e.g. "Y2" = 42). If a point is found we set its color.

Visual Basic	Copy Code
Imports Dundas.Charting.WebControl ...     'find data point value of 42     Dim myPoint As DataPoint = Chart1.Series("Series1").Points.FindValue(42, "Y2")     'set its color     myPoint.Color = Color.BlueViolet ...

	Copy Code
using Dundas.Charting.WebControl;   ...          // Find data point value of 42.       DataPoint myPoint = Chart1.Series["Series1"].Points.FindValue(42, "Y2");              // Set its color.       myPoint.Color = Color.BlueViolet;      ...

Returns the first matching data point that has the specified point value (e.g. the first data point with an X-value of 15.5).

This function definition starts the search at the beginning of the collection, and can only be used to locate the first data point that has a specific value. To locate ALL data points in the collection that have a specific value use the definition that takes a startFromIndex parameter value.

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Reference