private void buttonUpdateEmployee_Click(object sender, EventArgs e) { if ((textBoxclientname.Text == "") || (textBoxbooktitle.Text == "") || (textBoxOrderQuantity.Text == "") || (textBoxUnitPrice.Text == "") || (textBoxSubtotal.Text == "") || (textBoxGST.Text == "") || (textBoxPST.Text == "") || (textBoxtotal.Text == "")) { MessageBox.Show("Please full fill all the fields", "Missing Data"); return; } else { } { Order Us = new Order(); Us.OrdernUmber = Convert.ToInt32(textBoxOrderNumber.Text); Us.OrderDate = dateTimePickerOrder.Text; Us.ShippingDate = dateTimePickerShipping.Text; Us.ClientNumber = textBoxclientname.Text; Us.BookName = textBoxbooktitle.Text; Us.Quantity = Convert.ToSByte(textBoxOrderQuantity.Text); Us.unit = Convert.ToSByte(textBoxUnitPrice.Text); Us.Subtotal = Convert.ToSByte(textBoxSubtotal.Text); Us.Gst = Convert.ToSByte(textBoxGST.Text); Us.Pst = Convert.ToSByte(textBoxPST.Text); Us.unit = Convert.ToSByte(textBoxtotal.Text); DialogResult ans = MessageBox.Show("Do you really want to update this User?", "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Information); if (ans == DialogResult.Yes) { OrdersDA.Update(Us); MessageBox.Show("User record has been updated successfully", "Confirmation"); } textBoxOrderNumber.Enabled = true; ClearAll(); } }