SharePoint 2010 - Enabling actual error in sharepoint

Make the following changes to the web.config of the MOSS application to get the actual error occurred in the application which will help to debug the application in easier way:

·         Set the ‘CallStack’ property of SafeMode tag (under SharePoint tag) as ‘true’.

·         Set the ‘AllowPageLevelTrace’ property of SafeMode tag (under SharePoint tag) as ‘true’.

·         Set the ‘mode’ property of customErrors tag as ‘Off’.

·         Set the debug property of compilation tag as ‘true’.

Regular expression

Table 1. Common Regular Expressions

Field	Expression	Format Samples	Description
Name	^[a-zA-Z''-'\s]{1,40}$	John Doe O'Dell	Validates a name. Allows up to 40 uppercase and lowercase characters and a few special characters that are common to some names. You can modify this list.
Social Security Number	^\d{3}-\d{2}-\d{4}$	111-11-1111	Validates the format, type, and length of the supplied input field. The input must consist of 3 numeric characters followed by a dash, then 2 numeric characters followed by a dash, and then 4 numeric characters.
Phone Number	^[01]?[- .]?(\([2-9]\d{2}\)|[2-9]\d{2})[- .]?\d{3}[- .]?\d{4}$	(425) 555-0123                   425-555-0123                   425 555 0123                   1-425-555-0123	Validates a U.S. phone number. It must consist of 3 numeric characters, optionally enclosed in parentheses, followed by a set of 3 numeric characters and then a set of 4 numeric characters.
E-mail	^([0-9a-zA-Z]([-\.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$	someone@example.com	Validates an e-mail address.
URL	^(ht|f)tp(s?)\:\/\/[0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*(:(0-9)*)*(\/?)([a-zA-Z0-9\-\.\?\,\'\/\\\+&%\$#_]*)?$	http://www.microsoft.com	Validates a URL
ZIP Code	^(\d{5}-\d{4}|\d{5}|\d{9})$|^([a-zA-Z]\d[a-zA-Z] \d[a-zA-Z]\d)$	12345	Validates a U.S. ZIP Code. The code must consist of 5 or 9 numeric characters.
Password	(?!^[0-9]*$)(?!^[a-zA-Z]*$)^([a-zA-Z0-9]{8,10})$		Validates a strong password. It must be between 8 and 10 characters, contain at least one digit and one alphabetic character, and must not contain special characters.
Non- negative integer	^\d+$	0 986	Validates that the field contains an integer greater than zero.
Currency (non- negative)	^\d+(\.\d\d)?$	1.00	Validates a positive currency amount. If there is a decimal point, it requires 2 numeric characters after the decimal point. For example, 3.00 is valid but 3.1 is not.
Currency (positive or negative)	^(-)?\d+(\.\d\d)?$	1.20	Validates for a positive or negative currency amount. If there is a decimal point, it requires 2 numeric characters after the decimal point.