Hi Gianfranco,
Greetings from Syncfusion.
We suspect that your device culture is set to Italian. As per the Italian culture, dot is considered as GroupSeparator and comma is considered as DecimalSeparator.
By default, as the GroupSeparator is enabled in the SfNumericUpDown control. So, the group separator will be added automatically based on device culture. You can avoid it by setting the EnableGroupSeparator property as False in the SfNumericUpDown.
Please find the code snippet to achieve the same.
[XAML]
<my:SfNumericUpDown x:Name="nud_anno" FormatString="N0" Value="2019" Minimum="2000" Maximum="9999" IsEditable="False" MaximumNumberDecimalDigits="0" EnableGroupSeparator=” False” /> |
Please let us know if you need further assistance on this.
Thanks,
Rachel.