Gets or sets the percentage of the RadialGauge covered by the GaugePortion. For example, if the first GaugePortion's PortionSize is set to 30, it will cover (and let you customize the margin and color of) the first 30% of the gauge's displayed range of values. If a second GaugePortion is 70, the second portion will cover the 30% to 100% displayed range of values.  

'Declaration
 
<DisplayNameAttribute("PortionSize (0 to 100 %)")>
Public Property PortionSize As Double

'Usage
 
Dim instance As GaugePortion
Dim value As Double
 
instance.PortionSize = value
 
value = instance.PortionSize

[DisplayName("PortionSize (0 to 100 %)")]
public double PortionSize {get; set;}