Hi Inhyuk,

The bar width is set trough the WidthPercent property in case the bar is in categorical mode or trough the BarWidth property when in scatter (UseXValue is true):

// bar width 10 of category cell
barSeries.WidthPercent = 10;

// bar width 10 points
barSeries.BarWidth = new NLength(10);

Hope this helps - let me know if you have any questions...

Best regards,
Bob

Hi~

Can I fix the bar's width or set max width?
If the series has only one datapoint, the width of bar is much wider.

thanks~