This article will gives u the certain regular expressions that will be used normally in all the applications.
Numeric Validation
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1. ‘\d+’ – Only numbers (0-9) can be entered in the field.
2. ‘^[0-9]*$’ – Only numbers (0-9) can be entered in the field.
3. ‘^9[0-9]*$ - Only numbers (0-9) can be entered in the field.The number will always start with 9.
4. ‘^\d{1,4}$’ – Numbers may be of length starting from single digit to fourdigits.
5. [0-9]{5} – Only numbers are allowed.The maxlength for the number will be five digits.
6. ‘[+][0-9]{1,4}[-][0-9]{1,6}[-][0-9]{1,15}’ – Numbers will be in the format of +44-20-76297988
+44(Maxlength will be from singledigit to fourdigits)-20(Maxlength will be from singledigit to sixdigits)-76297988(Maxlength will be from singledigit to fifteen digits)
Email Address Validation
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Expression 1
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‘[A-Za-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?’
Expression 2
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^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$
String Validation
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1. ‘^[\w+\s]+$’ – Any characters with whitespace will be allowed
2. ‘^[\w,-,'.']+$’ – Characters and special characters like ‘–‘ and ‘.’ are allowed
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| Author: Devendra 04 Jul 2009 | Member Level: Gold Points : 1 |
Dear,
Thanks for valuable help.
We can use it in future and you can make it more wide
like
Image Upload Control Validations (For File extensions)
Like for Photo u can use
/^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF|.png|.PNG|.bmp|.BMP)$/
And Many More
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