ASP.Net MembershipProvider : Auto generate password without nonalfanumaric character

• Download MembershipProvAutoGenPass - 32.11 KB

Introduction

In an application that uses Asp.Net MembershipProvider, in the membership process if you don't want to use character except letter in your generated password that send to your given e-mail address, you have to follow below steps.
Unfortunately it seems complicated and in my opinion there is a design mistake related MembershipProvider.

Using the code

It requires some changes with CreateUserWizard control :
For this create new web control derived by CreateUserWizard control and override Password property.

    ToolboxData("<{0}:MyCreateUserWizard runat="server"></{0}:MyCreateUserWizard>")]
    public class MyCreateUserWizard : CreateUserWizard
    {
        
        public MyCreateUserWizard()
            : base()
        {
        
        }

        private string generatedPassword = string.Empty;

        public override string Password
        {
            get
            {
                if (string.IsNullOrEmpty(generatedPassword))
                    generatedPassword = GeneratePassword();

                return generatedPassword;
            }
        }
        

    }
        

And if you want same feature with PasswordRecovery control, you have to create new class derived by System.Web.Security.SqlMembershipProvider and override GeneratePassword method.

 public class MyMembershipProvider : System.Web.Security.SqlMembershipProvider
    {       

        public MyMembershipProvider()
            : base()
        {
        }
                
        public override string GeneratePassword()
        {
            ....
        }
    }