The Range feature represents the entire span in the ProgressBar control, and this can be defined using the Minimum and Maximum properties.

• Minimum: this property sets the lowest possible value of the progress indicator element. The default value is 0. The ProgressBar range begins at this Minimum value.
• Maximum: this property sets the highest possible value of the progress indicator element. The default value is 1. The ProgressBar range cannot go beyond the Maximum value. 

The code snippet below depicts the use of range.

<c1:C1ProgressBar Minimum="0" Maximum="100" Value="70" Name="pbStatus" />