Hi Feng,
Thanks for using
Syncfusion products.
By default in our
Chart control displays the Adornment label in double format. Also we can
customize the Adornment data label format by using SegmentLabelFormat property
of AdornmentInfo as show in the given below code snippet.
Code snippet [Xaml]:
<syncfusion:ChartAdornmentInfo x:Name="Series1"
SegmentLabelFormat="0.0" Visible="True">
We have prepared the sample based on your requirement.
Please download the sample from the below location.
Please let us know if you need any further assistance.
Regards,
M. Sheik