Hi Sathish,
Thanks for your continued interest in Syncfusion product.
1. Yes, You can able to type negative value at the starting position.
I have attached the sample that demonstrates this completely. It is for allowing both positive and negative number with the mentioned number format
http://websamples.syncfusion.com/samples/Grid.Windows/F67762/main.htm2. Please refer to the following link for details about # formatting
http://idunno.org/archive/2004/14/01/122.aspxPlease let me know if you have any questions.
Regards,
Nagaraj