private void insert_btn_Click(object sender, EventArgs e)
        {
            string gender = "";

            if (male_button.Checked == true)
            {
                gender = "Male";
            }
            else
            {
                gender = "Female";
            }

            string          check_data_exit = "SELECT student_id from student_data where student_id = '" + student_id_box.Text + "'";
            MySqlDataReader data            = curd.SelectQ(check_data_exit);

            string student_id_exits = "";

            while (data.Read())
            {
                student_id_exits = data.GetString(0);
            }

            if (student_id_box.Text != "" && batch_no_box.Text != "" && firstname_box.Text != "" && lastname_box.Text != "" && gender != "" && department_box.Text != "" && phone__box.Text != "")
            {
                if (student_id_exits == "")
                {
                    string sqlcode = "INSERT INTO student_data VALUES('','" + student_id_box.Text + "', '" + firstname_box.Text + "','" + lastname_box.Text + "','" + born_date.Text + "','" + gender + "','" + email__box.Text + "','" + phone__box.Text + "','" + department_box.Text + "','" + batch_no_box.Text + "','" + remarks__box.Text + "')";
                    curd.CUD(sqlcode);
                    DataViwer();
                    clearboxes();
                    gender = "";
                    MessageBox.Show("Data inserted successfully");
                }
                else
                {
                    MessageBox.Show("This student ID '" + student_id_exits + "' already exits!.", "Insertion Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    student_id_box.Clear();
                }

                student_id_exits = "";
            }
            else
            {
                MessageBox.Show("Please fill up all necessary fields", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
コード例 #2
0
        private void insert_btn_Click(object sender, EventArgs e)
        {
            string          selectCurrrentPassowrdSQL = "SELECT password from user_account";
            MySqlDataReader data = curd.SelectQ(selectCurrrentPassowrdSQL);

            string current_password_from_server = "";

            while (data.Read())
            {
                current_password_from_server = data.GetString(0);
            }

            string current_password_from_user = current_password.Text;

            if (new_password.Text.Length >= 8)
            {
                if (current_password_from_user == current_password_from_server)
                {
                    string NewPassword     = new_password.Text;
                    string ConfirmPassowrd = confirm_password.Text;

                    if (NewPassword == ConfirmPassowrd)
                    {
                        string update_code = "UPDATE user_account SET password = '******'";
                        curd.CUD(update_code);
                        MessageBox.Show("Password has been updated successfully.");
                        current_password.Clear();
                        new_password.Clear();
                        confirm_password.Clear();
                        this.Hide();
                    }
                    else
                    {
                        MessageBox.Show("Confirm password does not match.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        current_password.Clear();
                        new_password.Clear();
                        confirm_password.Clear();
                    }
                }
                else
                {
                    MessageBox.Show("Current password is wrong.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    current_password.Clear();
                    new_password.Clear();
                    confirm_password.Clear();
                }
            }
            else
            {
                MessageBox.Show("Password must be at least 8 characters long.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                current_password.Clear();
                new_password.Clear();
                confirm_password.Clear();
            }
        }