Yes, just set the LabelFormatString
property of your series.
var theSeries = new ColumnSeries();
theSeries.LabelFormatString = "{0:F2}"; // Example: 1.2311 will display like "1.23"
// Add your columns
theSeries.Items.Add(new ColumnItem(someValue);
// ...
There is also an optional property you can set called LabelPlacement
. The default value is LabelPlacement.Outside
:
theSeries.LabelPlacement = LabelPlacement.Middle;