I need to validate a Textbox input which accepts decimal values. I require to count the number of digits entered after dot in the decimal number and restrict if the precision is more than 5.
Ex
Valid values
1.2
15.256
25.25486
Invalid
455.256485
^\d*(?:\.\d{1,5})?$
This should validate decimals with 5 after ..
^\d*(?:\.\d{1,5})$
Use this if it is striclty for decimals and not integers.
Related
I want to allow users to just adding numbers like
123456.78912445,
-12345.7777777899,
1234567,
-12345678.
There is no number limit.
How can i write Regrex pattern for this textformfield.
Same Question inputFormatter should allow just decimal numbers and negative numbers
TextFormField(inputFormatters:[FilteringTextInputFormatter.allow(RegExp())])
Try this: ^\-*\d+(?:.\d+)?$
And example: https://regex101.com/r/yQDyoM/1
I have used the below regex but it accept all values after decimal point. I want only whole numbers ( eg: 12) and half decimal point (eg 12.5)
Regex regex = new Regex("[^0-9.]+");
I want the below behavior.
For example
Valid numbers : 12, 12.5
Invalid numbers 12.1, 12.8
Try using this pattern:
\d+(?:\.5)?
This would match whole numbers, as well as numbers which half just a decimal component of 0.5. If you also want to allow for 0.0 decimal endings, then use:
\d+(?:\.[05])?
For your actual code, you may use:
Regex regex = new Regex("#\d+(?:\.5)?");
I am trying to display a decimal on the scorecard. By default it goes for a whole number but i want 1 digit precision. E.g. instead of 99 display 92.1.
Select the source column, go to the Modeling -> Formatting
And set:
Data Type: Decimal Number
Format: Decimal Number
And in the dropdown below select the number of digits precision required.
I have a regexp to check for a decimal with 2 numbers, but I want to check both the integer and the decimal part for their length.
/^\s*-?[1-9]\d*(\.\d{1,2})?\s*$/;
The above code is decimal with length 2 (ex: 12.23) but I want 10 integer value and 2 decimal value (10,2) like,
1234567890.12
Use /^(?![.])\d{0,10}(\.\d{1,2})?$/
It allows 1.23, 1.2 0.2
Invalid values ., 1.
Depending on what you exactly want, you can use:
/^\s*-?(\d{1,10}(\.\d{1,2})?)\s*$/
for input like: 12.23, 3.4, 1234567890.34, 4, 456, etc., or:
/^\s*-?(\d{10}(\.\d{1,2})?)\s*$/
for: 9087654321, 1234567890.1, 1234567890.23 (10 digits, and optional point and one or two digits), or:
/^\s*-?(\d{10}\.\d{2})\s*$/
for exactly 10 digits fallowed by point and 2 digits, like: 9087654321.12, etc. Its all depends on what kind of numbers you want to filter.
I am new to regular expression , i want a regular expression which satisfies following reqs:
User can enter a value in which the fractional part should not be more than 3 digits ,it can be less than 3 digits and the decimal part should not more than 1 digit.The number can be without decimal part in that case the digits should not more than 3.It is also possible to just have decimal part.Please help
Please try this,
^\d{0,3}(\.(?=\d)\d){0,1}$
This matches the followings,
123
1.2
12.3
123.4
I hope this helps.