private void stdntbtn_Click(object sender, EventArgs e) { this.Hide(); VerifyStudent f1 = new VerifyStudent(); f1.Show(); }
public void readfromdatabase(OleDbConnection connection, string val1, string val2) { connection.Open(); try { OleDbCommand command = new OleDbCommand(); command.Connection = connection; command.CommandText = "select * from Table1 where ID='" + val1 + "'and Pass='******'"; OleDbDataReader reader = command.ExecuteReader(); int c = 0; while (reader.Read()) { c = c + 1; } if (c == 1) { MessageBox.Show("Username and Password are Correct"); int a = 1; VerifyStudent f1 = new VerifyStudent(); f1.returnval(a); } else if (c > 1) { MessageBox.Show("Too Many Username of this"); } else { MessageBox.Show("Username and Password is not Correct"); } connection.Close(); } catch (Exception ex) { MessageBox.Show("Error" + ex); connection.Close(); } }