private void btnBack_Click(object sender, EventArgs e)
{
//Create a new instance of the Studio2Menu screen.
Studio2Menu studio2Menu = new Studio2Menu();
//Show the Studio2Menu screen.
studio2Menu.Show();
//Hide this screen.
Hide();
}
//Create click event for btnEnter.
private void btnEnter_Click(object sender, EventArgs e)
{
//If txtUsername is not empty...
if (txtUsername.Text != "")
{
//If txtPassword is not empty...
if (txtPassword.Text != "")
{
//This section of code ensures that whatever StaffID is entered into the textbox is valid.
using (SqlConnection connection = new SqlConnection(_connectionString))
{
using (SqlCommand sqlCommand = new SqlCommand("SELECT COUNT(*) FROM Staff WHERE (StaffID = @StaffID)", connection))
{
connection.Open();
sqlCommand.Parameters.AddWithValue("@StaffID", txtUsername.Text);
int user = (int)sqlCommand.ExecuteScalar();
bool userExist = false;
string staffID = txtUsername.Text;
int _staffID = int.Parse(txtUsername.Text);
string password = txtPassword.Text;
if (user > 0)
{
//If the password enters matches "Admin_Studio2"...
if (password == "Admin_Studio2")
{
//Set the userExist variable to true.
userExist = true;
//If userExist is true...
if (userExist)
{
//Create a new instance of the Studio2Menu screen.
Studio2Menu studio2Menu = new Studio2Menu();
//Show the Studio2 Menu screen.
studio2Menu.Show();
//Hide the Studio2 Menu screen.
Hide();
}
//Otherwise, display a message telling the user that the username is invalid.
else
{
MessageBox.Show("Invalid username.");
}
//Otherwise, display a message telling the user that the password is incorrect.
}
else
{
MessageBox.Show("Incorrect password.");
}
}
//Otherwise, display a message telling the user that the username is invalid.
else
{
MessageBox.Show("Invalid Username.");
}
}
}
}
//Otherwise, display a message asking the user to enter a password.
else
{
MessageBox.Show("Please enter a password.");
}
}
//Otherwise, display a message asking the user to enter a username.
else
{
MessageBox.Show("Please enter a username.");
}
}
