[英]ASP.NET Web Forms Routing Ambiguity
我按以下顺序拥有路由规则:
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">
在目标页面的代码隐藏中,以下代码有效,我不知道为什么。 switch语句是针对“精选”的案例值“True”执行的? 这就像我根据占位符不区分这些路线?
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的是这样的:
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");
然后你可以像你一样构建URL,或者像
<a id="a1" href="<%$ RouteUrl:Category=Discounted,routename=shop-categories%>" title="Discounted" runat="server">Discounted</a>
我认为你想要一个不同的路线(为了清晰起见)的特色,如
routes.MapPageRoute("featured", "Shop/Featured/{Featured}", "~/Shop.aspx");
和链接(两种方式):
<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>
然后你的代码隐藏:
if (Page.RouteData.Values["Category"] != null)
{
//something
}
else if (Page.RouteData.Values["Featured"] != null)
{
//something
}
像我所展示的那样建立链接的好处是,如果你决定改变你的路线......你不会破坏任何东西。 假设你最终不喜欢网址/Shop/Featured/
的外观,只是希望它/Featured/
,所以你改变你的路线:
routes.MapPageRoute("featured", "Featured/{Featured}", "~/Shop.aspx");
现在在上面的例子中, id="A2"
的链接仍然可以使用,而id="A3"
现在已经被破坏了。
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