Dundas Chart for Windows Forms
FindMinValue(String) Method
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DundasWinChart Assembly > Dundas.Charting.WinControl Namespace > DataPointCollection Class > FindMinValue Method : FindMinValue(String) Method


useValue

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


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

Returns the first data point in the collection that has an X or Y-value that is equal to the series' minimum value. The search always starts at the beginning of the collection.


Find first point with Min value from specified index.

Syntax

Visual Basic (Declaration)  
Public Overloads Function FindMinValue( _
   ByVal useValue As String _
) As DataPoint
Visual Basic (Usage) Copy Code
Dim instance As DataPointCollection
Dim useValue As String
Dim value As DataPoint
 
value = instance.FindMinValue(useValue)
C#  
public DataPoint FindMinValue( 
   string useValue
)

Parameters

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 an X or Y-value equal to the series' minimum. If no data point is found (which will only occur if there are no points in the collection) then null will be returned.


Found point or null.

Example

The following sample returns the first data point that has a third Y-value (Y3) that is the series minimum, and we change the color of that point.

Visual Basic Copy Code
Imports Dundas.Charting.WinControl
...

    ' Find max data point of Y3 values
    Dim minPoint As DataPoint = Chart1.Series("Series1").Points.FindMinValue("Y3")

    ' Set color of this point
    minPoint.Color = Color.BlueViolet

...
C# Copy Code
Imports Dundas.Charting.WinControl
...

   // Find max data point of Y3 values
   
Dim minPoint As DataPoint = Chart1.Series["Series1"].Points.FindMinValue("Y3");
   
   
// Set color of this point
   
minPoint.Color = Color.BlueViolet;

...

Remarks

Returns the first data point in the collection that has an X or Y-value that is equal to the series minimum value.

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

Requirements

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

See Also

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