How to validate Username and Password in c#?

How to validate Username and Password in c#?

Open(); string checkUser = “SELECT * FROM Members where Username= ‘” + TextBoxSignUser. Text + “‘ and Password= ‘” + TextBoxSignPass. Text + “‘”; SqlCommand cmd = new SqlCommand(checkUser, con); cmd.

How do I validate my User ID?

A username is considered valid if all the following constraints are satisfied:

1. The username consists of 6 to 30 characters inclusive.
2. The username can only contain alphanumeric characters and underscores (_).
3. The first character of the username must be an alphabetic character, i.e., either lowercase character.

How can I see password in database?

You will then want to right-click on the file and select View/Edit from the menu that opens. This will open the wp-config. php file into a text editor where you can then look for the section titled MySQL Database Password. You will want to copy the password which is located in between the ‘ ‘.

How do I find my domain credentials?

How to Find a Domain Admin Password

1. Log in to your admin workstation with your user name and password that has administrator privileges.
2. Type “net user /?” to view all your options for the “net user” command.
3. Type “net user administrator * /domain” and press “Enter.” Change “domain” with your domain network name.

How do I find my Active Directory username and password?

Manually Testing Login Credentials Against Active Directory

1. To test a username and password against the Active Directory, run the ad auth command in the Policy Manager CLI.
2. Enter the following CLI command:
3. (server) # ad auth –u –n
4. –u indicates the username.

How do I find my username in SQL?

SQL Server USER_NAME() Function The USER_NAME() function returns the database user name based on the specified id. If no id is specified, this function will return the name of the current user.

Is it safe to use custom username password validator?

Note Because anyone can construct a Username credential that uses the username/password pairs that the custom validator accepts, the service is less secure than the default behavior provided by the standard UserNamePassword Validator.

How to validate a username and password in VB.NET?

Lets assume that your database has a table containing the username, password and a boolean which is called something like isAdmin and can be set on true or false, depending on the users rights. Now you have to use your DB connection to validate the username and the password.

How is a client authenticated using a username token?

In summary this sample demonstrates how: The client can be authenticated using a Username Token. The server validates the client credentials against a custom UserNamePasswordValidator and how to propagate custom faults from the username and password validation logic to the client. The server is authenticated using the server’s X.509 certificate.

How to add username and password validation in react JS?

Sometime we need to add username and password validation in react js then i will show you step by step how to add username validation without whitespace and minimum 6 character in react js.