I have a string value like "GX 123-02" or "ML 35-02". The numbers entered after the letters can be any long, but there must be a space after the alphabet followed by the number values. How can I create a regex expression in C# to check if the value is entered in this format?
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[a-zA-Z]{2} [0-9]*-[0-9]{2} would match thoseJason Fetterly– Jason Fetterly2016-03-22 04:57:17 +00:00Commented Mar 22, 2016 at 4:57
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2if you're asking how to match a space, you just use a space.juharr– juharr2016-03-22 04:57:57 +00:00Commented Mar 22, 2016 at 4:57
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2 Answers
\s is indicates space use following expression it will works
[a-zA-Z0-9\s]{5,25}
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So if I got you right, you want exactly two letters followed by at least a space and number-number, you can use this regex:
[a-zA-Z]{2}\s+\d+-\d+
Note that \s matches any white space if you want exactly the space character to be matched at least one time you can simply just replace \s with a space like this:
[a-zA-Z]{2} +\d+-\d+
5 Comments
juharr
\s+ matches more than just a space. it matches any amount of whitespace
Arin Ghazarian
@juharr of course, it was just a demonstration, but I will update the answer to address this.
OseeAliz
Thanks. This works well. How about if string contains any number of digits after the space like "GB 12-23232-23232"
OseeAliz
Just tried your given regex. It also works for my above scenario. Thanks
Arin Ghazarian
@OseeAliz if you mean number-number-number... then you can use s.t like this:
[A-Z]{2} +(\d+-)+\d+