I have a chart of lineseries bound to dynamic data which is always a count of events filtered by time. So the data points are always going to be whole numbers. For large time filter the y axis may be 0 to 500 points or more for small filter it may be 0 to < 4 . For the small filters the labels on the Y show up with decimal places e.g. 0, 0.5, 1, 1.5 etc and it doesn't look good. Is there an easy way to style for whole numbers only on the y axis? Below is my current setting as is done in a multi value converter. I tried {N} also but can't find anything to work.  The format syntax for the labels seems mysterious to me. What does it map to? Please help.

NumericYAxis yAxis = new NumericYAxis { Label = "{0}", LabelSettings = new AxisLabelSettings() { Location = AxisLabelsLocation.OutsideLeft } };