private void button3_Click(object sender, EventArgs e)
{
Main_menu m = new Main_menu();
this.Hide();
m.Show();
}
private void button1_Click(object sender, EventArgs e)
{
//Sqlconnection for user login
SqlConnection con = new SqlConnection(@"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\Users\lenovo\Desktop\Ravi_code\Teachers\user_Database.mdf;Integrated Security=True;Connect Timeout=30");
string Query = "SELECT * From Login WHERE username= '******' AND password= '******'";
SqlDataAdapter sda = new SqlDataAdapter(Query, con);
DataTable dt = new DataTable();
sda.Fill(dt);
if (dt.Rows.Count == 1)
{
Main_menu m = new Main_menu();
this.Hide();
m.Show();
}
else
{
MessageBox.Show("Username or Password is Incorect");
}
con.Close();
}
