I need a Regular Expression for "Atleast 6 characters with no spaces"
Please help
To allow anything other than whitespace ^\S{6,}$
To allow only alphabets: ^[a-zA-Z]{6,}$
To allow word chars (alphanumeric and _): ^\w{6,}$
You can use \w{6,}
Also FYI:
you can use Regex Coach for Regular Expression experiments.
It is easy to play with Regular Expressions by using tools like Regex Coach.
For literally any six non-space characters (other than newlines, depending on options):
[^ ]{6,}
For six non-whitespace characters:
\S{6,}
Related
I need to specify that my user name has to start with one of two words, followed by a backslash. It can only accept the words cat or dog at the beggining and then a backslash is expected, for example:
cat\something
dog\something
Both are accepted. What's the regular expression for this? I've tried some regular expressions but I haven«t figured it out yet.
The solution is:
^cat\\.*|^dog\\.*
https://regex101.com/ is a great tool for testing and evaluating regular expressions.
I've a textbox in an ASP.NET application, for which I need to use a regular expression to validate the user input string. Requirements for regex are -
It should allow only one space between words. That is, total number of spaces between words or characters should only be one.
It should ignore leading and trailing spaces.
Matches:
Test
Test abc
Non Matches:
Test abc def
Test abc --> I wanted to include multiple spaces between the 2 words. However the editor ignores these extra spaces while posting a question.
Assuming there must be either one or two 'words' (i.e. sequences of non-space characters)
"\s*\S+(\s\S+)?\s*"
Change \S to [A-Za-z] if you want to allow only letters.
Pretty straightforward:
/^ *(\w+ ?)+ *$/
Fiddle: http://refiddle.com/gls
Maybe this one will do?
\s*\S+?\s?\S*\s*
Edit: Its a server-encoded regex, meaning that you might need to remove one of those escaping slashes.
How about:
^\s*(\w+\s)*\w+\s*$
What is the Regular Expression Validator for only Letters and Numbers in asp.net?
I need to enter only 0-9,a-z and A-Z. I don't want to allow any special characters single or double quotes etc. I am using asp.net 3.5 framework.
I tried ^[a-zA-Z0-9]+$ and ^[a-zA-Z0-9]*$. They are not working.
Any help will be appreciated.
Try the following.
^[a-zA-Z0-9]+$
go to this example and also alphanumerics for more
then try this
^[a-zA-Z0-9]*$
If length restriction is necessary use
^[a-zA-Z0-9]{0,50}$
This will match alphanumeric strings of 0 to 50 chars.
you can try this....
^[a-zA-Z0-9]+$
see more info at here
You can define a regular expression as follows,
Regex myRegularExpression = new Regex(" \b^[a-zA-Z0-9]+$\b");
be sure to include System.Text.RegularExpression
and then use the Regex to match it with your user-control as follows,
eg : if your user-control is a textbox
myRegularExpression.isMatch(myTextBox.Text);
Dear English speaking people. With all due respect. A-Z are not the only letters in the world. Please use \w instead of [A-Za-z0-9] if you support other languages in your apps
I am trying to use a regular expression for name field in the asp.net application.
Conditions:name should be minimum 6 characters ?
I tried the following
"^(?=.*\d).{6}$"
I m completely new to the regex.Can any one suggest me what must be the regex for such condition ?
You could use this to match any alphanumeric character in length of 6 or more: ^[a-zA-Z0-9]{6,}$. You can tweak it to allow other characters or go the other route and just put in exclusions. The Regex Coach is a great environment for testing/playing with regular expressions (I wrote a blog post with some links to other tools too).
Look at Expression library and choose user name and/or password regex for you. You can also test your regex in online regex testers like RegexPlanet.
My regex suggestions are:
^[a-zA-Z][a-zA-Z0-9._\-]{5,}$
This regex accepts user names with minimum 6 characters, starting with a letter and containing only letters, numbers and ".","-","_" characters.
Next one:
^[a-zA-Z0-9._\\-]{6,}$
Similar to above, but accepts ".", "-", "_" and 0-9 to be first characters too.
If you want to validate only string length (minimum 6 characters), this simple regex below will be enough:
^.{6,}$
What about
^.{6,}$
What's all the stuff at the start of yours, and did you want to limit yourself to digits?
NRegex is a nice site for testing out regexes.
To just match 6 characters, ".{6}" is enough
In its simplest form, you can use the following:
.{6,}
This will match on 6 or more characters and fail on anything less. This will accept ANY character - unicode, ascii, whatever you are running through. If you have more requirements (i.e. only the latin alphabet, must contain a number, etc), the regex would obviously have to change.
I'm looking for a regex that will allow Alpha Numeric and most all special characters except white space. It should be usable in c#. It would be nice if .net supported posix style but I can't seem to get it to work. TIA
Pretty sure \S (note capitalization) is the non-whitespace character class.
Something along the lines of: [^\s]+ should do the trick.
This roughly translates as "match one or more consecutive characters that are not whitespace" (\s matches a space, tab, or line break).