Hi

 I need to check the text box value. The validation should be as folows.
A + ve number may contain decimal values with maximum 16 characters , 12 characters to the left of decimal point + decimal point + 3 places of decimal places. Example.. 123456789123.123 , left to decimal can not be more than 12 digit, right side can not be more than 3 digit.
Some valid values
12
1.232
.232
12345.232

Please help me.

Thanks in advance