One solution might be to change the bar series BarWidthPercent property to ensure the same bar width (in pixels) as you change chart size.I want the bars in my chart to have the same width all the time and when I make the chart
Ideally the solution would be to use the approach as in VCL version. There bar series has as CustomBarSize property which controls the width of each bar - expressed in pixels. The latest NET version is missing this property - we'll include it in next maintenance release.