protected void btnDelete_Click(object sender, EventArgs e)
 {
     CustomerModule customerModule = new CustomerModule();
     if (ViewState["id"] != null)
     {
         customerModule.Delete(ViewState["id"].ToString());
         gvCustomer.DataSource = odsCustomer;
         gvCustomer.DataBind();
     }
     else
     {
         lblError.Visible = true;
         lblError.Text = "PLEASE SELECT CUSTOMER";
     }
 }
    private void InsertCustomer()
    {
        InventorySystem.Business.Customer customer = new InventorySystem.Business.Customer();
        CustomerModule customerModule = new CustomerModule();
        if (ViewState["id"] != null)
            customer.Id = Convert.ToInt32(ViewState["id"]);

        customer.Name = txtCustName.Text;
        customer.Company = txtCustCompName.Text;
        customer.Address = txtCustAddress.Text;
        customer.Website = txtCustWebsite.Text;
        customer.Remarks = txtCustRemarks.Text;
        customer.Email = txtCustEmail.Text;
        customer.Fax = txtCustFaxNo.Text;
        customer.PostCode = txtCustPostalCode.Text;
        //customer.Country = txtCustCountry.Text;
        customer.Country = ddlCountry.TextField;
        customer.PhoneNo = txtCustPhoneNo.Text;
        customer.Rating = RatingExample.CurrentRating;
        customerModule.Save(customer);
    }