private void button3_Click_1(object sender, EventArgs e)
{
string query = "SELECT * FROM Lecturer_db WHERE Password = '******'";
SqlDataAdapter SDA = new SqlDataAdapter(query, sqlcon);
DataTable dtb = new DataTable();
SDA.Fill(dtb);
if (dtb.Rows.Count == 1)
{
textBox2.Show();
MessageBody.Show();
label1.Show();
label3.Show();
button1.Show();
button2.Show();
}
else
{
MessageBox.Show("Please Input Correct Password!");
}
}