Hello GJ DM,
By default, the bar items will not touch or overlap if the ChartArea.ItemWidthPercent
property value is less than 100.The chart control divides the available space in equal parts and each bar is placed inside the corresponding part. Then the ChartArea.ItemWidthPercent
property value is applied to adjust the actual width of the bar(it defaults to 80 percents of the space).
The width of the bars is dynamically calculated based on the available space and you can not set it as a hard coded value.
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