It works well with either ASP. So, in this case it is UserName. You should check this property only after you have called the Page. In these two forms, validation controls are used to validate the fields as per requirement. This Remote Validation thing is what we are looking for. If none exist the user is not in the system, and if one exists you can authenticate the user. IsValid property tells you whether the validation succeeded or not. NET server control that initiates form processing. Next in the 'CreateUser' button click event write the following code. To know about validation controls in asp. I hope you enjoyed this article and found it useful. So, you need to make sure on the server side that it is valid as it is being done on our sample. AddWithValue " Rowstate", 1 ; cmd. Please feel free to leave your comments below. For this example we will validate the credentials using a database the proper way: RemoteAttribute has several overloads but what we entered here is as follows:
We need three for this example: AddWithValue " ID", guid ; cmd. This feature kind of a no-brainer thing thanks to built-in ASP. Next in the 'CreateUser' button click event write the following code. In order to stick with the topic here, I already registered a user with a username of user1. Then create a table called Users with the following schema: AddWithValue " Password", Password. The advantage of hashing is that a hash is irreversible. The remote validation does not validate the user input on server side. Please enter a different user name. Add connection string property in web. Obviously, a password should allow for special characters for it to be secure, so we cannot run the password through the IsAlphaNumeric method. This Remote Validation thing is what we are looking for. NET website — the proper way. The second method is the ValidateCredentials method which accepts the user name and password and parameters. Look what happens when I try to create another user with a username of user1: I have shown you the proper way to create a login page and authenticate your users. We are also using the LoginStatus control which is a hyperlink which either logs a user in or logs him out. Creating Signin or Login form: So if a hacker gets his hands on your database, with all the user passwords inside, he cannot do anything with it. NET will automatically redirect him to the home page. The link text displayed depends on whether the user is logged in or not. It works well with either ASP. If none exist the user is not in the system, and if one exists you can authenticate the user. This page can only be accessed by authenticated users.
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