How to display and hide the minor gridlines in a chart?
The SmallTicksPerInterval property of the ChartAxis markup extension is used to mention the number of gridlines to be displayed per interval.
XAML
<syncfusion:ChartAxis syncfusion:ChartArea.ShowGridLines="True" SmallTicksPerInterval="10"/>
Minor gridlines can be disabled by setting the SmallTicksPerInterval property to 0.
