Membership Generate Password alphanumeric only password?

asp.net regex asp.net-membership membership
Curtis White picture Curtis White · Apr 12, 2010 · Viewed 31k times · Source

How can I use Membership.GeneratePassword to return a password that ONLY contains alpha or numeric characters? The default method will only guarantee a minimum and not a maximum number of non alphanumeric passwords.

Answer

Curtis White picture Curtis White · Apr 12, 2010 
string newPassword = Membership.GeneratePassword(15, 0);
newPassword = Regex.Replace(newPassword, @"[^a-zA-Z0-9]", m => "9" );

This regular expression will replace all non alphanumeric characters with the numeric character 9.

Related questions

Regex for password must contain at least eight characters, at least one number and both lower and uppercase letters and special characters

I want a regular expression to check that: A password contains at least eight characters, including at least one number and includes both lower and uppercase letters and special characters, for example #, ?, !. It cannot be your old password or contain …

Read More
How can I strip HTML tags from a string in ASP.NET?

Using ASP.NET, how can I strip the HTML tags from a given string reliably (i.e. not using regex)? I am looking for something like PHP's strip_tags. Example: <ul><li>Hello</li>&…

Read More
Convert all first letter to upper case, rest lower for each word

I have a string of text (about 5-6 words mostly) that I need to convert. Currently the text looks like: THIS IS MY TEXT RIGHT NOW I want to convert it to: This Is My Text Right Now I can …

Read More