private void btnLogin_Click(object sender, EventArgs e)
{
if (txtUsername.Text != "Username")
{
if (txtPassword.Text != "Password")
{
bool login = false;
string username, password;
string inUsername, inPassword;
inUsername = txtUsername.Text;
inPassword = txtPassword.Text;
OleDbDataReader reader = Program.readData("SELECT UserName, Password FROM tblStaff");
while (reader.Read())
{
username = reader[0].ToString();
password = reader[1].ToString();
if (username.Equals(inUsername) && password.Equals(inPassword))
{
login = true;
break;
}
}
reader.Close();
Program.con.Close();
if (login)
{
Main_Form f = new Main_Form();
f.Show();
this.Hide();
}
else
{
MessageBox.Show("Incorrect Username or Password!!!", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtUsername.Clear();
txtPassword.Clear();
txtUsername_Leave(sender, e);
txtPassword_Leave(sender, e);
txtUsername.Focus();
}
}
else
{
txtPassword.BackColor = Color.Red;
MessageBox.Show("Please input Password!!!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Stop);
txtPassword.BackColor = Color.White;
txtPassword.SelectAll();
txtPassword.Focus();
}
}
else
{
txtUsername.BackColor = Color.Red;
MessageBox.Show("Please input Username!!!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Stop);
txtUsername.BackColor = Color.White;
txtUsername.SelectAll();
txtUsername.Focus();
}
}
private void Sell_FormClosing(object sender, FormClosingEventArgs e)
{
Main_Form f = new Main_Form();
f.Show();
}