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Regular Expression AB777111-Jan-13 4:10 AB7771 11-Jan-13 4:10  Hi all, I have scenario where a string can contain '$' only at the start, I was able to create a regular expression for this validation, but now another scenario is the same string can be repeated by a ',' delimiter. Now what happens is since I don't allow the '$' in the string except for the first position, when I repeat the same string after ',' starting with '$' the validation fails. Is there anyway in which we can restrict a character uptil some delimiter and then again allow it? Any pointers would be appreciated. Thanks & Regards, Pramod "Everyone is a genius at least once a year" Re: Regular Expression vinodkumarnie18-Jan-13 21:44 vinodkumarnie 18-Jan-13 21:44  Explanation is not enough in all situations. So Please give some string examples.. Thank you.. Vinod Kumar B C Software Engineer Re: Regular Expression AspDotNetDev24-Jan-13 14:09 AspDotNetDev 24-Jan-13 14:09  Keep in mind that "$" is a special character, so you must escape it. The regular expression would look something like this: ^\$?((?!\$).)+(,\$?((?!\$).)+)*$ FYI, the tricky bit is called a "negative lookahead". Thou mewling ill-breeding pignut!

Last Visit: 31-Dec-99 18:00     Last Update: 25-Apr-24 9:43 Refresh 1

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