Hi eapiater,
Refer Simple User Registration Form Example in ASP.Net.
For insert user refer below procedure.
DELIMITER $$
CREATE PROCEDURE `Insert_User`
(
Username NVARCHAR(20),
Password NVARCHAR(20),
Email NVARCHAR(30)
)
BEGIN
IF EXISTS (SELECT UserId FROM Users WHERE Username = Username) THEN
SELECT -1;
ELSEIF EXISTS (SELECT UserId FROM Users WHERE Email = Email) THEN
SELECT -2;
ELSE
INSERT INTO Users (Username, Password, Email, CreatedDate) VALUES (Username, Password, Email, GETDATE());
SELECT LAST_INSERT_ID();
END IF;
END $$