我有以下顺序的路由规则：
routes.MapPageRoute("Corporate", "Shop/{Category}", "~/Shop.aspx");
routes.MapPageRoute("GiftType", "Shop/{Category}", "~/Shop.aspx");
routes.MapPageRoute("Occasion", "Shop/{Category}", "~/Shop.aspx");
routes.MapPageRoute("Discounted", "Shop/{Category}", "~/Shop.aspx");
routes.MapPageRoute("Featured", "Shop/{Featured}", "~/Shop.aspx");
我正在使用的链接：
<a href="~/Shop/Corporate" title="Corporate Gifts" runat="server">Corporate</a>
<a href="~/Shop/GiftType" title="Shop by Gift Type" runat="server">Gift Type</a>
<a href="~/Shop/Occasion" title="Shop by Occasion" runat="server">Occasion</a>
<a href="~/Shop/Discounted" title="Discounted" runat="server">Discounted</a>
<a href='<%# "~/Shop/"+Eval("Featured") %>' title='<%# Eval("ProductName") %>'
runat="server">
在目标页面后面的代码中，以下代码有效，但我不知道为什么。switch语句针对“ Featured”的个案值为“ True”执行？就像我不是根据占位符将这些路由彼此区分开来吗？
if (Page.RouteData.Values["Category"] != null)
{
string category = Page.RouteData.Values["Category"].ToString();
switch (category)
{
case ("Corporate"):
Response.Write("Corporate");
break;
case ("GiftType"):
Response.Write("GiftType");
break;
case ("Occasion"):
Response.Write("Occasion");
break;
case ("Discounted"):
Response.Write("Discounted");
break;
// Do not want the following to be picked up here for Category param
case ("True"):
Response.Write("Featured");
break;
}
}
我想在代码方面工作是这样的：
if (Page.RouteData.Values["Category"] != null)
{
string category = Page.RouteData.Values["Category"].ToString();
switch (category)
{
case ("Corporate"):
Response.Write("Corporate");
break;
case ("GiftType"):
Response.Write("GiftType");
break;
case ("Occasion"):
Response.Write("Occasion");
break;
case ("Discounted"):
Response.Write("Discounted");
break;
}
}
else if (Page.RouteData.Values["Featured"].ToString() == "True")
{
Response.Write("Featured");
}
您的类别只需要一条路线：
routes.MapPageRoute("shop-categories", "Shop/{Category}", "~/Shop.aspx");
然后，您可以像以前一样构建URL
<a id="a1" href="<%$ RouteUrl:Category=Discounted,routename=shop-categories%>" title="Discounted" runat="server">Discounted</a>
我想您会希望采用其他路线（为清楚起见），例如
routes.MapPageRoute("featured", "Shop/Featured/{Featured}", "~/Shop.aspx");
和链接（双向）：
<a id="A2" href="<%$ RouteUrl:Featured=False,routename=featured%>" title="Featured" runat="server">Featured False</a>
<a id="A3" href="~/Shop/Featured/True" title="Featured" runat="server">Featured True</a>
然后将您的代码隐藏：
if (Page.RouteData.Values["Category"] != null)
{
//something
}
else if (Page.RouteData.Values["Featured"] != null)
{
//something
}
建立像我所示的链接的好处是，如果您决定更改路线……您将不会中断任何事情。假设您最终不喜欢URL的外观，/Shop/Featured/而只是希望它是/Featured/，因此您更改了路由：
routes.MapPageRoute("featured", "Featured/{Featured}", "~/Shop.aspx");
现在在上面的示例中，与的链接id="A2"仍然有效，而id="A3"现在断开了。
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