private void button1_Click(object sender, EventArgs e) { try { if (textBox1.Text.Trim() == "") { MessageBox.Show(@"Enter scholarship id", @"Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); return; } if (textBox2.Text.Trim() == "") { MessageBox.Show(@"Password can not be empty", @"Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); return; } var con = new MySqlConnection("server=localhost;user id=root;database=kys"); con.Open(); var selectQuery = "update scholarship" + " set confirmation = 'confirmed' where id = " + textBox1.Text.Trim(); var sqlCommand = new MySqlCommand(selectQuery, con); var dataReader = sqlCommand.ExecuteReader(); while (dataReader.Read()) { } con.Close(); con.Open(); selectQuery = "insert into" + " scholarship_confirm values (" + textBox1.Text.Trim() + ", '" + textBox2.Text.Trim() + "')"; sqlCommand = new MySqlCommand(selectQuery, con); try { dataReader = sqlCommand.ExecuteReader(); } catch (Exception) { MessageBox.Show(@"Scholarship does not exist", @"Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); return; } while (dataReader.Read()) { } con.Close(); MessageBox.Show(@"Scholarship Confirmed!"); } catch (Exception ex) { MessageBox.Show(ex.Message); } Close(); var f = new Registrar(); f.Show(); }