This question already has answers here:
Regex match entire words only
(7 answers)
Closed 4 months ago.
I'm having such string:
(Reasoncode1 -49.00)
From that string I need to take all the decimal values both positive/ negative so --> -49.00
I've created such regexp: -?\d+\.*\d*
It work but if the string has number inside like: "Reasoncode1" then it takes that one value and I want to avoid it.
Try this regex
-?[0-9]*\.[0-9]*
Related
This question already has answers here:
.NET Regex Error: [x-y] range in reverse order
(3 answers)
How to match hyphens with Regular Expression?
(6 answers)
Closed 4 years ago.
What I need is to check if a string only contains the characters > or < or -.
So I thought using a RegEx for this, and I found an SO question with the exact same problem, and it has an answer (not the accepted one but the answer with regex)
This is the SO question : String contains only a given set of characters
So I modified the expression in this question to fit my needs like this :
static readonly Regex Validator = new Regex(#"^[><- ]+$");
and I call it like this ;
Validator.IsMatch(testValue)
But it's throwing the error
x-y range in reverse order
There are lots of question on SO about this error but I cant find or understand the answer I need.
So what am I doing wrong with this RegEx?
^[-<>]+$ "-" must come first in C# regex
Escape - within character groups. ([0-9] means "zero to nine" and not "zero, dash or nine")
This question already has answers here:
C# Regex to allow only alpha numeric
(6 answers)
Closed 5 years ago.
I need to check whether string is only contain letters but not numbers or special characters.I used below regex pattern,
String validText = "^[a-zA-Z-]+$";
its work fine for 'Leo#' but if it is like 'Leo#1' its not working properly.
Anyone have idea ?
I prefer you can use LinQ (input is your test string)
bool result = input.All(Char.IsLetter);
Else as Gordon Posted the right Regex,
^[a-zA-z]+$
You can try using this regex
/^[A-Za-z]+$/
This will match only letters in your string ..
This question already has answers here:
How do I match an entire string with a regex?
(8 answers)
Closed 6 years ago.
I need to detect following format when I enter serial number like
CK123456.789
I used Regex with pattern of
^(CV[0-9]{6}\.[0-9]{3}
to match but if I enter
CK123456.7890
it still able to proceed without flagging error. Is there a better regular expression to detect the trailing 3 digits after '.'?
Depending on how you use the regular expression matcher, you might need to enclose it in ^...$ which forces the pattern to be the whole string, i.e.
^CK[0-9]{6}\.[0-9]{3}$ (Note the CK prefix).
I've also removed your leading (mismatched) parenthesis.
This question already has answers here:
How to match numbers between X and Y with regexp?
(7 answers)
Closed 6 years ago.
I am new to learning Regex and I have tried almost everything myself and from the internet to find a Regex that accepts values from 0 to 65536 and yes I want to do it by Regex only. The Closest I got was 69999.
Here it is:
^(?:[0-5]?[0-9]{1,4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-6])$
See demo
Split it into multiple ranges: 0-9, 10-9999, 10000-59999, 60000-64999, 65000-65499, 65500-65529, 65530-65536
^(?:\d|[1-9]\d{1,3}|[1-5]\d{4}|6[0-4]\d{3}|65[0-4]\d{2}|655[0-2]\d|6553[0-6])$
This question already has answers here:
Closed 11 years ago.
Possible Duplicates:
.NET String.Format() to add commas in thousands place for a number
Add comma to numbers every three digits using C#
I want to create a logic in c# too put the comma after each 3 digit int the any 9 digit number, could any body tel me how can i achieve this?
Like i have the following number 123456789 then i want to form it like 123,456,789.
Call ToString and specify "N" as the format string
var formattedString = string.Format("{0:0,0}", 123456789);
double value = 1234567890;
Console.WriteLine(value.ToString("#,#", CultureInfo.InvariantCulture));