public string tab4(string patronId, User user) { ToolP toolP = new ToolP(); string str = toolP.formatDate(DateTime.Now.ToString("dd/MM/yyyy")); StringBuilder stringBuilder = new StringBuilder(); stringBuilder.Append("<z304>"); stringBuilder.Append("<record-action>A</record-action>"); stringBuilder.Append("<email-address>" + user.userMail + "</email-address>"); stringBuilder.Append("<z304-id>" + patronId + "</z304-id>"); stringBuilder.Append("<z304-sequence>01</z304-sequence>"); stringBuilder.Append("<z304-email-address>" + user.userMail + "</z304-email-address>"); stringBuilder.Append("<z304-telephone>" + user.telephoneNumber + "</z304-telephone>"); stringBuilder.Append("<z304-address-type>01</z304-address-type>"); stringBuilder.Append("<z304-update-date>" + str + "</z304-update-date>"); stringBuilder.Append("</z304>"); return(stringBuilder.ToString()); }