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Gets or sets the position of this gradient stop.
The position specifies where the gradient stop is placed in the gradient transition. The valid range is 0.0 to 1.0, where 0.0 represents the start of the gradient and 1.0 represents the end.
double Position { get; set; }
Property Position As Double
IRange range = worksheet.Range["A1"];
range.Interior.Pattern = Pattern.LinearGradient;
ILinearGradient gradient = (ILinearGradient) range.Interior.Gradient;
IColorStop colorStop = gradient.ColorStops[1];
colorStop.Position = 1.0;
double position = colorStop.Position;