private void btn_Send_Click(object sender, EventArgs e)
        {
            if (validationAddField() == false)
            {
            }
            else
            {
                ImageConverter image = new ImageConverter();
                byte[]         img   = (byte[])image.ConvertTo(pictureBox1.Image, Type.GetType("System.Byte[]"));

                expense.ExpName     = txt_ExpenseName.Text;
                expense.ExpTotal    = Math.Round(total, 2);
                expense.ExpCategory = cb_Category.Text;
                expense.ReceiptNo   = receiptRefNo;
                expense.receiptDate = dateTimePicker1.Value;
                expense.Image       = img;

                int numRes = add.AddNEwExpense(expense);
                if (numRes > 0)
                {
                    MessageBox.Show("Record added successfully", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    dg_ExpenseData.Update();
                    dg_ExpenseData.Refresh();
                    clearFields();
                    dg_ExpenseData.DataSource = fetchData.FetchAllExpensesRecords(expense);
                    dg_ExpenseData.Columns[2].DefaultCellStyle.Format = "C2";
                }
            }
        }