public void InsertDiscountItem(DiscountItem discountItem)
{
try
{
mRepository.InsertDiscountItem(discountItem, true);
}
catch (Exception ex)
{
throw ex;
}
}
public void InsertDiscountItem(DiscountItem discountItem, bool isImmediateSave)
{
try
{
mContext.DiscountItems.AddObject(discountItem);
if (isImmediateSave)
{
mContext.SaveChanges();
}
}
catch (Exception ex)
{
// TODO: Add exception handling code here.
}
}
public void UpdateDiscountItem(DiscountItem newDiscountItem, DiscountItem origDiscountItem, bool isImmediateSave)
{
try
{
mContext.DiscountItems.Attach(origDiscountItem);
mContext.ApplyCurrentValues("DiscountItems", newDiscountItem);
if (isImmediateSave)
{
mContext.SaveChanges();
}
}
catch (Exception ex)
{
// TODO: Add exception handling code here.
}
}
public void DeleteDiscountItem(DiscountItem discountItem, bool isImmediateSave)
{
try
{
mContext.DiscountItems.Attach(discountItem);
mContext.DiscountItems.DeleteObject(discountItem);
if (isImmediateSave)
{
mContext.SaveChanges();
}
}
catch (Exception ex)
{
// TODO: Add exception handling code here.
throw ex;
}
}
protected void SubmitButton_Click(object sender, EventArgs e)
{
// Submit all the changes.
Discount origDiscount = GetDiscount();
Discount discount = new Discount();
DiscountItemBL discountItemBL = new DiscountItemBL();
DataTable source = (DataTable)ViewState["DataSource"];
// First, the discount.
discount.description = DiscountDescriptionTextBox.Text;
discount.startDate = Convert.ToDateTime(DateDown.Text);
discount.endDate = Convert.ToDateTime(DateUp.Text);
if (mIsNew)
{
mDiscounts.InsertDiscount(discount);
}
else
{
discount.discountID = origDiscount.discountID;
mDiscounts.UpdateDiscount(discount, origDiscount);
}
// Then, the corresponding discount items.
foreach (DataRow row in source.Rows)
{
DiscountItem item = new DiscountItem();
DiscountItem origItem = discountItemBL.GetDiscountItem(Convert.ToInt32(row["id"]));
if ((string)row["status"] == "D")
{
// Delete this row.
discountItemBL.DeleteDiscountItem(origItem);
}
else if ((string)row["status"] == "M")
{
// Update this row.
item.id = origItem.id;
item.productID = Convert.ToInt32(row["productID"]);
item.description = row["description"].ToString();
item.discountID = discount.discountID;
item.discountPercent = (float)Convert.ToDouble(row["discountPercent"]);
discountItemBL.UpdateDiscountItem(item, origItem);
}
else if ((string)row["status"] == "I")
{
// Insert this row.
item.productID = Convert.ToInt32(row["productID"]);
item.description = row["description"].ToString();
item.discountID = discount.discountID;
item.discountPercent = (float)Convert.ToDouble(row["discountPercent"]);
discountItemBL.InsertDiscountItem(item);
}
}
// Jump back to the discount list page.
Response.Redirect("~/WebPages/Discounts.aspx");
}
public void UpdateDiscountItem(DiscountItem discountItem, DiscountItem origDiscountItem)
{
try
{
mRepository.UpdateDiscountItem(discountItem, origDiscountItem, true);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 创建新的 DiscountItem 对象。
/// </summary>
/// <param name="id">id 属性的初始值。</param>
/// <param name="discountID">discountID 属性的初始值。</param>
/// <param name="productID">productID 属性的初始值。</param>
/// <param name="discountPercent">discountPercent 属性的初始值。</param>
/// <param name="description">description 属性的初始值。</param>
public static DiscountItem CreateDiscountItem(global::System.Int32 id, global::System.Int32 discountID, global::System.Int32 productID, global::System.Single discountPercent, global::System.String description)
{
DiscountItem discountItem = new DiscountItem();
discountItem.id = id;
discountItem.discountID = discountID;
discountItem.productID = productID;
discountItem.discountPercent = discountPercent;
discountItem.description = description;
return discountItem;
}
/// <summary>
/// 用于向 DiscountItems EntitySet 添加新对象的方法，已弃用。请考虑改用关联的 ObjectSet<T> 属性的 .Add 方法。
/// </summary>
public void AddToDiscountItems(DiscountItem discountItem)
{
base.AddObject("DiscountItems", discountItem);
}