private void button1_Click(object sender, EventArgs e)
{
this.Hide();
studentlogin sl = new studentlogin();
sl.Show();
}
private void button1_Click(object sender, EventArgs e)
{
this.Hide();
SqlCommand cmd = con.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select * from student_login where username='******' and password='******'";
cmd.ExecuteNonQuery();
DataTable dt = new DataTable();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
count = Convert.ToInt32(dt.Rows.Count.ToString());
if (count == 0)
{
MessageBox.Show("Invalid Username or Password");
studentlogin sl = new studentlogin();
sl.Show();
}
else
{
this.Hide();
mdi_student ms = new mdi_student();
ms.Show();
}
}