vb.net 如何在另一个中使用 Html.DropDownListFor
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How to use Html.DropDownListFor in another
提问by Echo Kao
I have a Question about @Html.DropDownListFor
我有一个关于@Html.DropDownListFor 的问题
I have 2 class :
我有 2 个班级：
Public Class A01WorkRecord
Public Property counter As Int32
Public Property MembetNumber As Int16
Public Property Memo As String
Public Property WorkDate As Date
End Class
Public Class B01Member
Public Property counter As Int32
Public Property Number As Int16
Public Property Name As Date
End Class
the VIEW is for create Work Record so I want the view can chooise Member Name and write work memo
VIEW 用于创建工作记录，所以我希望视图可以选择成员名称并编写工作备忘录
so in the Controller
所以在控制器中
Function Index() As ActionResult
Dim q = From p In db.B01s
Select p.Number, p.Name
Dim ListItem As List(Of SelectListItem) = New List(Of SelectListItem)
For Each l In q
ListItem.Add(New SelectListItem With {.Text = l.Name, .Value = l.Number})
Next
ViewData("List") = New SelectList(ListItem, "Value", "Text", "")
Return View()
End Function
and in the View
并在视图中
@Html.DropDownListFor(Function(model) model.MembetNumber ,ViewData("Item"))
I want to choose name, but it's not working ...
我想选择名字，但它不起作用......
the error message:
错误信息：
No Type is 'IEnumerable' and index 'Number' ViewData Item
无类型为 'IEnumerable' 和索引为 'Number' ViewData 项
I don't Know what's Wrong, please help me.
我不知道怎么了，请帮助我。
回答by Kane
From the example provided it appears that you are might be mixing up ViewData("Item")with ViewData("List")
从提供的示例看来，您可能正在ViewData("Item")与ViewData("List")
So try this instead
所以试试这个
@Html.DropDownListFor(Function(model) model.MembetNumber, ViewData("List"))
