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Construct Regular Expressions

Posted By:      Posted Date: September 16, 2010    Points: 0   Category :.NET Framework
Hi ,  I need to construct a regular expression for the password textbox which shouldn't accept special characters($,@,!,etc).Even whitespaces,tabs. I tried the below this accepts special characters. Any inputs <asp:RegularExpressionValidator ID="RegEx" runat="server" ControlToValidate="Password" ErrorMessage="Password must be atleast 8 characters and include a number,alphabets upper case and lower case. "ToolTip="Password format is not correct" ValidationExpression="^(?=.{8})(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).*$"> </asp:RegularExpressionValidator>    Regards  Janet

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so [A-Z] matches any 1 character that is between capital a and capital z. 

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Jaeden "Sifo Dyas" al'Raec Ruiner


"Never Trust a computer. Your brain is smarter than any micro-chip."
PS - Don't mark answers on other people's questions. There are such things as Vacations and Holidays which may reduce timely activity, and until the person asking

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Lou Davis
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