我正在尝试将存储在会话变量中的项目放入转发器中供用户查看。但是，我不完全确定如何做（我是会话变量的新手）。基本上，当用户输入点击提交的一次页面上的项目数量时，他们将被带到“订单摘要”页面，该页面将显示他们计划购买的内容。我已成功设置会话变量以包含用户选择的每个产品的sku和数量，但我不知道如何获取信息。
我已将信息存储在会话变量中[sku]，[数量]; [sku]，[数量]; [sku]，[数量]等等。我想我必须根据逗号和分号进行拆分，但我不知道如何使用会话变量。
产品列表页面的代码，其中包含要存储在会话变量中的信息：
public partial class GojoptproductlistSublayout : System.Web.UI.UserControl
{
private void Page_Load(object sender, EventArgs e)
{
if(!Page.IsPostBack)
{
Item CurrentItem = Sitecore.Context.Item;
Item HomeItem = ScHelper.FindAncestor(CurrentItem, "gojoMarket");
if (HomeItem != null)
{
Item ProductGroup = HomeItem.Axes.SelectSingleItem(@"child::*[@@templatename='gojoMarketOfficeBuildigProductMap']/*[@@templatename='gojoProductList']");
if (ProductGroup != null)
{
Item[] LocationList = ProductGroup.Axes.SelectItems(@"child::*[@@templatename='gojoProductLocation' and @Active = '1']");
if (LocationList != null)
{
DataSet ds = new DataSet();
DataTable locations = ds.Tables.Add("locations");
locations.Columns.Add("LocationName", Type.GetType("System.String"));
locations.Columns.Add("LocationID", Type.GetType("System.String"));
foreach (Item LocationItem in LocationList)
{
DataRow dr = locations.NewRow();
dr["LocationName"] = LocationItem.Fields["Header"].Value;
dr["LocationID"] = LocationItem.ID.ToString();
locations.Rows.Add(dr);
}
locationRepeater.DataSource = ds;
locationRepeater.DataMember = "locations";
locationRepeater.DataBind();
}
}
}
}
}
protected void SetInner(object sender, RepeaterItemEventArgs e)
{
if ((e.Item.ItemType != ListItemType.Footer) & (e.Item.ItemType != ListItemType.Header))
{
Label refID = (Label)e.Item.FindControl("refID");
Label test = (Label)e.Item.FindControl("test");
Repeater areaRepeater = (Repeater)e.Item.FindControl("areaRepeater");
Database db = Sitecore.Context.Database;
Item LocationAreaItem = db.Items[refID.Text];
if (LocationAreaItem != null)
{
Item[] AreaList = LocationAreaItem.Axes.SelectItems(@"child::*[@@templatename='gojoProductLocationArea' and @Active = '1']");
if (AreaList != null)
{
DataSet dset = new DataSet();
DataTable areas = dset.Tables.Add("areas");
areas.Columns.Add("AreaName", Type.GetType("System.String"));
areas.Columns.Add("Sku", Type.GetType("System.String"));
areas.Columns.Add("ProductName", Type.GetType("System.String"));
areas.Columns.Add("masterSku", Type.GetType("System.String"));
areas.Columns.Add("masterName", Type.GetType("System.String"));
areas.Columns.Add("Size", Type.GetType("System.String"));
areas.Columns.Add("SkuID", Type.GetType("System.String"));
areas.Columns.Add("AreaID",Type.GetType("System.String"));
areas.Columns.Add("productID", Type.GetType("System.String"));
foreach (Item AreaItem in AreaList)
{
DataRow drow = areas.NewRow();
drow["AreaName"] = AreaItem.Fields["Header"].Value;
drow["AreaID"] = AreaItem.ID.ToString();
areas.Rows.Add(drow);
Item[] SkuList = AreaItem.Axes.SelectItems(@"child::*[(@@templatename='gojoPTRefill' or @@templatename = 'gojoPTAccessories' or @@templatename = 'gojoPTDispenser' or @@templatename = 'gojoPTSelfDispensed') and @Active = '1']");
foreach (Item ChildItem in SkuList)
{
Item MarketProduct = db.Items[ChildItem.Fields["Reference SKU"].Value];
drow["productID"] = ChildItem.ID.ToString();
if (MarketProduct != null)
{
Item MasterProduct = db.Items[MarketProduct.Fields["Master Product"].Value];
if (MasterProduct != null)
{
DataRow newRow = areas.NewRow();
if(MasterProduct.TemplateName == "gojoSKUSelfDispensed" || MasterProduct.TemplateName == "gojoSKURefill")
{
newRow["Size"] = MasterProduct.Fields["Size"].Value;
}
else
{
newRow["Size"] = "-";
}
newRow["Sku"] = MasterProduct.Fields["SKU"].Value;
newRow["productID"] = MasterProduct.ID.ToString();
Item MasterProductName = db.Items[MasterProduct.Fields["Complete Product Name"].Value];
if (MasterProductName != null)
{
newRow["ProductName"] = MasterProductName.Fields["Complete Name"].Value;
}
areas.Rows.Add(newRow);
}
}
}
}
areaRepeater.DataSource = dset;
areaRepeater.DataMember = "areas";
areaRepeater.DataBind();
}
}
}
}
protected bool checkQtys(ref int ItemCnt, ref ArrayList LinesToOrder)
{
Repeater locationRepeater = (Repeater)FindControl("locationRepeater");
bool validQtys = true;
string productID = "";
int qty;
qtyErrorMsg.Text = "";
qtyErrorMsgTop.Text = "";
foreach (RepeaterItem repItem in locationRepeater.Items)
{
if (repItem != null)
{
Repeater areaRepeater = (Repeater)repItem.FindControl("areaRepeater");
if (areaRepeater != null)
{
foreach (RepeaterItem skuItm in areaRepeater.Items)
{
if (skuItm != null)
{
Label SkuID = (Label)skuItm.FindControl("SkuID");
Label qtyID = (Label)skuItm.FindControl("qtyID");
PlaceHolder inner = (PlaceHolder)skuItm.FindControl("ProductTable");
if (inner != null)
{
foreach (Control ct in inner.Controls)
{
if (ct is TextBox)
{
TextBox lineQty = (TextBox)ct;
Label prodID = (Label)inner.FindControl("productID");
if (lineQty.Text != "")
{
try
{
int.Parse(lineQty.Text);
productID = prodID.Text;
qty = int.Parse(lineQty.Text);
if (qty > 0)
{
noItemMsg.Visible = false;
noItemMsgTop.Visible = false;
ItemCnt++; //only count items with valid qty values
LinesToOrder.Add(new LineItem(productID, qty));
}
else
{//Qty is 0 or less error
validQtys = false;
qtyErrorMsg.Text = "Quantity must be a number<br />";
qtyErrorMsgTop.Text = "Quantity must be a number<br />";
}
}
catch
{//NaN - display error msg
validQtys = false;
qtyErrorMsg.Text = "Quantity must be a number<br />";
qtyErrorMsgTop.Text = "Quantity must be a number<br />";
}
}
}
}
}
}
}
}
}
}
return validQtys;
}
class LineItem
{//This class will store the product information
public string SKUID;
public int Qty;
public LineItem(string InSKUID, int InQty)
{
this.SKUID = InSKUID;
this.Qty = InQty;
}
}
protected void orderSubmit(object sender, EventArgs e)
{
int ItemCnt = 0;
bool validQtys = true;
ArrayList LinesToOrder = new ArrayList();
Label lb = FindControl("order") as Label;
if (checkQtys(ref ItemCnt,ref LinesToOrder))
{
if (ItemCnt == 0)
{//make sure at least one item with proper qty amount is entered before submitting the order
validQtys = false;
noItemMsg.Visible = true;
noItemMsg.Text = "You must order at least one item<br />";
noItemMsgTop.Visible = true;
noItemMsgTop.Text = "You must order at least one item<br />";
}
if (validQtys)
{//save the information to a session variable and send users to order review page
try
{
foreach (LineItem WorkLine in LinesToOrder)
{
lb.Text += WorkLine.SKUID + ", " + WorkLine.Qty + ";";
}
Session["orderComplete"] = lb.Text;
}
catch (Exception x)
{
Response.Write(x.Message.ToString());
}
Response.Redirect("/united-states/market/office-buildings/obproductmap/OrderReview");
}
}
}
}
以下是包含转发器的设计器代码，用于保存订单摘要：
<asp:Repeater ID="orderRepeater" runat="server" >
<headertemplate>
<tr>
<th>SKU</th>
<th>Quantity</th>
</tr>
</headertemplate>
<itemtemplate>
<tr>
<td><%#Eval("sku") %></td>
<td><%#Eval("qty") %></td>
</tr>
</itemtemplate>
</asp:Repeater>
这是背后的代码：
private void Page_Load(object sender, EventArgs e)
{
Item CurrentItem = Sitecore.Context.Item;
Item HomeItem = ScHelper.FindAncestor(CurrentItem, "gojoMarket");
if (Session["orderComplete"] != "")
{
if (HomeItem != null)
{
Item ProductGroup = HomeItem.Axes.SelectSingleItem(@"child::*[@@templatename='gojoMarketOfficeBuildigProductMap']/*[@@templatename='gojoOrderReview']");
if (ProductGroup != null)
{
//this is where I am confused on how to proceed
}
}
}
}
一切正常，我对会话变量进行了Response.Write测试，以确保它具有正确的信息并且确实如此。
提前致谢！
答案 0 :(得分：2)
在我尝试解决您的问题之前，让我们先看看一些基础知识。 Session可以保存一个对象，而不仅仅是一个字符串对象。我会改变：
if (Session["orderComplete"] != "")
到
if (Session["orderComplete"] != null && Session["orderComplete"] != "")
如果您没有，且Session["orderComplete"]为空，则Session["orderComplete"] != ""会抛出错误object not set to an instance of an object
现在回答你的问题。将会话变量设置为[sku],[quantity];[sku],[quantity];[sku],[quantity]不是一个好主意。首先，它不是面向对象的，2，它不会绑定到任何转发器或数据源。您应该创建一个对象并将这些对象的列表绑定到您的控件：
伪代码：
class Program
{
static void Main(string[] args)
{
List<Order> orders = new List<Order>();
orders.Add(new Order { Sku = "ABC", Qty = 10});
}
}
public class Order {
public String Sku { get; set; }
public int Qty { get; set; }
}
然后您可以将orders绑定到转发器。例如：
if (Session["orderComplete"] != null && Session["orderComplete"] != ""){
List<Order> orders = Session["orderComplete"] as List<Order>;
myRepeater.DataSource = orders;
myRepeater.DataBind();
}