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


Returns the first data point in the collection that has a first Y-value that is equal to the series' minimum Y1 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() As DataPoint
Visual Basic (Usage) Copy Code
Dim instance As DataPointCollection
Dim value As DataPoint
 
value = instance.FindMinValue()
C#  
public DataPoint FindMinValue()

Return Value

The first DataPoint object in the DataPointCollection that has a first 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 Y1 value equal to the series' minimum Y1 value. We then change the color of that point.

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

    ' Find point with minimum Y value and change color
    Dim minValuePoint As DataPoint = Chart1.Series("Series1").Points.FindMinValue()

    ' Change the color of the data point
    minValuePoint.Color = Color.FromArgb(255, 128, 128)

...
C# Copy Code
using Dundas.Charting.WinControl;
...

   
// Find point with minimum Y value and change color
   
DataPoint minValuePoint = chart1.Series["Series1"].Points.FindMinValue();
   
   
// Change the color of the data point
   
minValuePoint.Color = Color.FromArgb(255, 128, 128);

...

Remarks

Returns the first data point that has the smallest first Y-value (there may be multiple points that have the same 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 Y1 value. To locate ALL data points in the collection that have the minimum Y1 value use the definition that takes a startFromIndex parameter value.

To examine a value other than the first Y-value (e.g. Y3, the third Y-value) use a definition that has a useValue parameter.

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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