//go back to the login screen
private void btnBack_Click(object sender, EventArgs e)
{
Login login = new Login();
login.Show();
this.Hide();
}
private void btnOK_Click(object sender, EventArgs e)
{
if (txtFirstName.Text == "") //validating that information has been entered into the text boxes.
{
MessageBox.Show("Please enter first name");
this.txtFirstName.Focus();
return;
}
if (txtLastName.Text == "")
{
MessageBox.Show("Please enter last name");
this.txtLastName.Focus();
return;
}
if (txtUsername.Text == "")
{
MessageBox.Show("Please enter user name");
this.txtUsername.Focus();
return;
}
if (txtPassword.Text == "")
{
MessageBox.Show("Please enter password");
this.txtPassword.Focus();
return;
}
Boolean approved = false; //bool for approval of validation
u = txtUsername.Text;
p = txtPassword.Text;
firstname = txtFirstName.Text;
lastname = txtLastName.Text;
approved = UserValidate.validate(u,p); //send to u and p to UserValidate to validate that it is in the correct format
try
{
if (approved == true) //once approved, the username is queryed against the database to see if there is another user with the same name
{
var queryIsUsernameTaken = from users in context.users where users.username == u select u;
string usernameIsTaken = Convert.ToString(queryIsUsernameTaken);
if (!usernameIsTaken.Equals(u,StringComparison.OrdinalIgnoreCase))//if statement condition that name is not taken
{
this.addNewUserInformation(); //use the addNewUserInformation method
MessageBox.Show("Your information has been entered in the database, you will be re-routed to the login screen.","ScoreTrend");
Login login = new Login(); //create new login object and view login GUI
login.Show();
this.Hide();
}
else
{ //Message box to tell the username has been used and if they would like to go back to the login screen
if (MessageBox.Show(u + " is already been used, please select another username. Would you like to go back to login screen?", "", MessageBoxButtons.YesNo) == DialogResult.Yes) ;
{
Login login = new Login();
login.Show();
this.Hide();
}
txtUsername.Clear();
txtPassword.Clear();
txtUsername.Focus();
}
}
else
{
MessageBox.Show("Usernames and Passwords must be a length of 8 to 20 aplhanumeric characters. The password cannot start with a digit, underscore or special character and must contain at least one digit.");
txtUsername.Clear();
}
}
catch (Exception ex)
{
MessageBox.Show("Cannot communicate with database. Application will now close." + ex.Message);
Application.Exit();
}
}