Regular expression validating date
And it does work brilliantly except the fact that it cannot validate for months which have less than 31 days for example 30/02/2014 will be considered as a valid date. Net Regular Expression Validator samples to validate Minimum and Maximum text Length and also different configurations like Alphanumeric with special characters, Alphanumeric, Alpha and Numeric configurations.Here Mudassar Ahmed Khan has explained with an example and attached sample code, how to validate only certain selected Grid View Row controls like Text Box using ASP.or even better, make the user enter the date with a date time picker in case its coming from an UI. Because Simple Date Format will parse this string successfully (after removing spaces), and gives a date of March 2nd or 3rd. Date Format which has a method set Lenient( boolean) which by default is 'true'.My suggestion is to split the string and validate using a simple algorithm. Set to 'false' and then it will throw the exception.If you need more examples or solutions, please contact me. Note that in character sets, special characters (., *, ) do not have any special meaning. This means match anything that is a single white space character OR anything that is not a white space character!DOTALL is a flag in most recent regex libraries that makes the . There is no 100% reliable solution since the RFC is way too complex. ] )*@([a-z0-9_][-a-z0-9_]*(\.[-a-z0-9_] )*\.(aero|arpa|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|pro|travel|mobi|[a-z][a-z])|([0-9]\.[0-9]\.[0-9]\.[0-9]))(:[0-9])? $ This will make sure that every number in the IP address is between 0 and 255, unlike the version using \d which would allow for 999.999.999.999.I still don't like one thing about this solution: if the String has a valid date followed by some other garbage (e.g.
This is the simplest way to validate a dd/MM/yyyy date format string.
Net Check Box List control using Custom Validator and perform at least one Check Box Checked Validation in it. Net Custom Validator will make us eof Java Script function to validate the Check Box List control. j Query Validation Engine plugin is used to perform validation of ASP. Validations such at least one (minimum one) checkbox must be checked, at least two (minimum two) checkbox must be checked, etc.
Here Mudassar Ahmed Khan has explained, explain how to validate ASP. Here Mudassar Ahmed Khan has explained how to validate / check file size before it is uploaded using j Query Uploadify plugin.
Note that the | operator in a regexp take into account the entirety of the expression before and after.
Therefore your regular expression allowed '[0-9]:[0-6][0-9] [1-9]' or '[0-9]' or ...