private void button2_Click(object sender, EventArgs e)
{
this.Hide();
carmgt f1 = new carmgt();
f1.Show();
}
private void button1_Click(object sender, EventArgs e)
{
carmgt c = new carmgt();
this.Close();
c.Show();
/*string cmd = "Select * from car";
* SqlDataAdapter dp = new SqlDataAdapter(cmd, con);
* // SqlCommandBuilder cb = new SqlCommandBuilder(dp);
* DataTable dt = new DataTable();
* dp.Fill(dt);
* BindingSource bs = new BindingSource();
* bs.DataSource = dt;
* dataGridView1.DataSource = bs;*/
}