Windows 8.1 C# PasswordVault Wrapper

gistfile1.txt

  public static class VaultManager
    {
        private const string VaultKeyResource = "My App Or Something...";
        private static readonly PasswordVault Vault = new PasswordVault();

        public static string Username
        {
            get
            {
                try
                {
                    var credentials = Vault.FindAllByResource(VaultKeyResource).FirstOrDefault();
                    return credentials.UserName;
                }
                catch (Exception)
                {
                    return null;
                }
            }
        }

        public static string Password
        {
            get
            {
                try
                {
                    return Vault.Retrieve(VaultKeyResource, Username).Password;
                }
                catch (Exception)
                {
                    return null;
                }
            }
        }

        public static bool Save(string userName, string password)
        {
            try
            {
                if (HasCredentials)
                    Delete();

                Vault.Add(new PasswordCredential(VaultKeyResource, userName, password));
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        public static bool Delete()
        {
            try
            {
                Vault.Remove(Vault.Retrieve(VaultKeyResource, Username));
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        public static bool HasCredentials
        {
            get
            {
                try
                {
                    return Vault.FindAllByResource(VaultKeyResource).FirstOrDefault() != null;
                }
                catch (Exception)
                {
                    return false;
                }
            }
        }
    }