Home/ Questions/Q 6712771
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-26T08:17:55+00:00

<asp:RegularExpressionValidator ID=RegularExpressionValidator1 runat=server ControlToValidate=txtPassword ErrorMessage=can not use this password Font-Bold=True ForeColor=White ValidationExpression=(?=^.{8,}$)(?=.*\d)(?=.*\W+)(?![.\n]).*$> </asp:RegularExpressionValidator> What

  • 0
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" 
ControlToValidate="txtPassword" ErrorMessage="can not use this password" 
Font-Bold="True" ForeColor="White" 
ValidationExpression="(?=^.{8,}$)(?=.*\d)(?=.*\W+)(?![.\n]).*$">
</asp:RegularExpressionValidator>

What does the ValidationExpression "(?=^.{8,}$)(?=.*\d)(?=.*\W+)(?![.\n]).*$" look for?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    It validates that the password is at least eight characters in length, containing at least one number or special character.

    This expression might be better for password strength:

    ValidationExpression="(?=^.{8,}$)((?=.*\d)|(?=.*\W+))(?![.\n])(?=.*[A-Z])(?=.*[a-z]).*$"

    The above expression will validate that the password contains:

    • at least one (1) upper case letter
    • at least one (1) lower case letter
    • at least one (1) number or special character
    • at least eight (8) characters in length
    • 0