1)我在 db 上有 2 个选项卡类别和子类别,关系为 1 到许多(我使用实体框架)
2)我必须像这样创建一个垂直菜单
<ul>
<li>category 1
<ul>
<li>subcategory 1</li>
<li>subcategory 2</li>
<li>subcategory 3</li>
</ul>
</li>
</ul>
我认为我的问题出在我的职能中
Function List_category_subcategory() As List(Of WHAT HERE???????)
Using db As New DBTestEntities
Dim q = From cat In db.categories Join subcat In db.subcategories On cat.CategoryID Equals subcat.CategoryID _
Select New With {cat.CategoryName, subcat.SubCategoryName}
List_category_subcategory = WHAT HERE???????
End Using
End Function
因为我不知道必须返回什么函数(可能是列表集合)
在我看来,它必须循环一切
类似的东西
<ul>
<% For Each cat In ??????%>
<li><a href="#"><%=Html.Encode(cat.CategoryName)%></a>
<ul>
<% For Each subcat In ???????%>
<li><%=Html.Encode(subcat.SubCategoryName)%></li>
<% Next%>
</ul>
</li>
<% Next%>
</ul>