private void logoutToolStripMenuItem_Click(object sender, EventArgs e)
{
DialogResult ans = MessageBox.Show("Do you Want to Logout?", "Confirmation", MessageBoxButtons.YesNo);
if (ans == DialogResult.Yes)
{
MessageBox.Show("You are Successfully Logout please add Username AND password to Login!");
Login formLogin = new Login();
formLogin.Show(this);
this.Hide();
}
else
{
Librarymdiparent mdiparent = new Librarymdiparent();
mdiparent.Show();
this.Hide();
}
}
private void button1_Click(object sender, EventArgs e)
{
string username, password;
username = textBox1.Text;
password = textBox2.Text;
con.Open();
OleDbCommand cmd = con.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select * from Admin where username = '******' and password = '******'";
OleDbDataReader reader = cmd.ExecuteReader();
int count = 0;
while (reader.Read())
{
count = count + 1;
}
//Checking If the Admins username and password is unique or not in the database
if (count == 1)
{
MessageBox.Show("You are successfully Logged in");
Librarymdiparent mdiparent = new Librarymdiparent();
mdiparent.Show();
this.Hide();
}
//If username and password is more than 1 then
if (count > 1)
{
MessageBox.Show("Can't be duplicate Admin");
}
else
{
MessageBox.Show("Username and password is incorrect");
}
con.Close();
}
