private void button2_Click(object sender, EventArgs e)
{
start st = new start();
this.Hide();
st.ShowDialog();
}
private void button7_Click(object sender, EventArgs e)
{
sql = "INSERT INTO tbhistory(timeanddate,activity,username)VALUES(now(),'Logout', 'Admin')";
sql_cmd = new MySqlCommand(sql, clsMySQL.sql_con);
sql_cmd.ExecuteNonQuery();
start st = new start();
this.Hide();
st.ShowDialog();
}