How to find value, maximum value and minimum value of the data points

EssentialChart has FindValue, FindMaximumValue and FindMinimumValue methods that can return the corresponding chart data point values depending upon the parameter(s) passed to these methods.

All these methods are overloaded.

Find Value

Properties

Method Description
FindValue(Double) It should return the first chart point in the collection that has a specified first Y-value. The search always should start at the beginning of the collection.
FindValue(Double, String)
 It should return the first chart point in the collection with the specified X or Y-value.
FindValue(Double, String,index )
It should return the first chart point with the specified X or Y-value, and should start the search at the specified index.
FindValue(Double, String, Index, Index )
 It should return the first chart point with the specified X or Y-value, and should start and end the search at the specified index. 
dbl = Int64.Parse(textBoxValue.Text);

ChartPoint dp1 = this.chartControl1.Series[0].Summary.FindValue(dbl);
dbl = Int64.Parse(textBoxValue.Text)

Dim dp1 As ChartPoint = Me.chartControl1.Series(0).Summary.FindValue(dbl)

FindMaximumValue

Properties

Method Description
FindMaxValue()
 It should return the first chart point in the collection with a maximum first Y-value. The search always should start at the beginning of the collection.
FindMaxValue(String)
 It should return the first chart point in the collection with the maximum specified value. The search always should start at the beginning of the collection.
FindMaxValue(String, index)
 It should return the first chart point with a maximum value. The search should start at the specified index.
FindMaxValue(String, Index , Index)
 It should return the first chart point with a maximum value. The search should start and end at the specified index. 
String str = textBoxString.Text;

startIndex = Int32.Parse(textBoxIndex.Text);

endIndex = Int32.Parse(textBox1.Text);

ChartPoint dp4 = this.chartControl1.Series[0].Summary.FindMinValue(str, ref startIndex, endIndex);
Dim str As String = textBoxString.Text

startIndex = Int32.Parse(textBoxIndex.Text)

endIndex = Int32.Parse(textBox1.Text)

Dim dp4 As ChartPoint = Me.chartControl1.Series(0).Summary.FindMinValue(str, ref startIndex, endIndex)

FindMinimumValue

Properties

Method Description
FindMinValue()
 It should return the first chart point in the collection that has a first Y-value that is equal to the series' minimum Y1 value. The search always should start at the beginning of the collection.
FindMinValue(String)
 It should return the first chart point in the collection that has an X or Y-value that is equal to the series' minimum value. The search always should start at the beginning of the collection.
FindMinValue(String, index)
 It should return the first Chart point with a minimum value. The search should start at the specified index.
FindMinValue(String, Index , Index)
 It should return the first Chart point with a minimum value. The search should start and end at the specified index. 
String str = textBoxString.Text;

startIndex = Int32.Parse(textBoxIndex.Text);

endIndex = Int32.Parse(textBox1.Text);

ChartPoint dp4 = this.chartControl1.Series[0].Summary.FindMaxValue(str, ref startIndex, endIndex);
Dim str As String = textBoxString.Text

startIndex = Int32.Parse(textBoxIndex.Text)

endIndex = Int32.Parse(textBox1.Text)

Dim dp4 As ChartPoint = Me.chartControl1.Series(0).Summary.FindMaxValue(str, startIndex, endIndex)