WholeRange.AlwaysShowZeroLevel Property

public bool AlwaysShowZeroLevel { get; set; }

Public Property AlwaysShowZeroLevel As Boolean

Property value

Use the AlwaysShowZeroLevel property to control whether the zero level should always be visible when the y-axis range is calculated automatically (the Range.Auto property is set to true). The Chart Control calculates a new optimal minimum value for the y-axis when AlwaysShowZeroLevel is disabled. The AlwaysShowZeroLevel property value is ignored if the Range.Auto property is set to false.

Note that you cannot enable the AlwaysShowZeroLevel property for a y-axis of values.

The following images demonstrate the AlwaysShowZeroLevel property in action:

AlwaysShowZeroLevel = false	AlwaysShowZeroLevel = true

XYDiagram xyDiagram { get { return chartControl1.Diagram as XYDiagram; } }
// ... 
xyDiagram.AxisY.WholeRange.AlwaysShowZeroLevel = false;

Private ReadOnly Property xyDiagram As XYDiagram
    Get 
        Return CType(chartControl1.Diagram,XYDiagram)
    End Get 
End Property 
' ... 
xyDiagram.AxisY.WholeRange.AlwaysShowZeroLevel = false 

Refer to Visual Ranges and Whole Ranges for more information about axis ranges.