再编辑一次:
所以看起来我已经找到了地址部分,在我的课程中:
Public ReadOnly Property addresses As IEnumerable(Of Address)
Get
Return _these_addresses
End Get
End Property
在模板中我有:
<% For Each item In Model.addresses%>
<tr>
<td>
<a href='<%: Url.Action("Edit", "Address", New With { .pid=Model.ContactID, .id=item.AddressID }) %>'>
<img src='<%: Url.Content("~/Content/Images/Edit.jpg") %>' alt="Edit" />
</a>
<a href='<%: Url.Action("Details", "Address", New With { .pid=Model.ContactID, .id=item.AddressID }) %>'>
<img src='<%: Url.Content("~/Content/Images/Detail.jpg") %>' alt="Details" />
</a>
<a href='<%: Url.Action("Delete", "Address", New With { .pid=Model.ContactID, .id=item.AddressID }) %>'>
<img src='<%: Url.Content("~/Content/Images/Delete.jpg") %>' alt="Delete" />
</a>
</td>
<td>
<%: item.Street%>
</td>
<td>
<%: item.City%>
</td>
<td>
<%: item.StateID%>
</td>
<td>
<%: item.CountryID%>
</td>
<td>
<%: item.Zip%>
</td>
</tr>
<% Next%>
</table>
再次编辑:
我为每个与课程联系的字段添加了这个,它正在工作......我只需要找出地址列表......
Public ReadOnly Property FirstName() As String
Get
Return _this_contact.FirstName
End Get
End Property
E D I T:
我想知道:
我在黑暗中拍摄了一个基于C示例的ContactViewModel我在研究中发现了如何做到这一点
Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Web
Imports TotallyAwesomeCRM.Contact
Imports TotallyAwesomeCRM.Address
Public Class ContactViewModel
Public contact As Contact
Public address As Address
Private _this_contact As Contact
Private _these_addresses As System.Linq.IQueryable(Of Address)
Sub New(ByVal this_contact As Contact, ByVal these_addresses As System.Linq.IQueryable(Of Address))
' TODO: Complete member initialization -this was added by the framework for me when I tried to call this class - I don't know what to do here - resources?
_this_contact = this_contact
_these_addresses = these_addresses
End Sub
End Class
所以在我的控制器中我:
Function Details(ByVal id As Integer) As ActionResult
Dim this_contact = GetContact(id)
Dim these_addresses =
From address In addressDataContext.Addresses, xref In addressDataContext.ContactAddressesXrefs
Where address.AddressID = xref.AddressID And xref.ContactID = id
Select address
Dim viewModel = New ContactViewModel(this_contact, these_addresses)
Return View(viewModel)
End Function
在模板中,当我开始输入Model.contact
时,它找到了联系人&lt;%:Model.contact.FirstName%&gt;
但它在那里给我一个错误:NullReferenceException:对象引用未设置为对象的实例。
它不应该为空......请帮我弄清楚TODO
=============================================== ================================== O R I G I N A L P O S T:
这是我有史以来的第一次.NET冒险。到目前为止我所做的一切我已经想通了。
好的我有联系人,联系人可以有很多地址。我想在查看联系人的详细信息时显示这些地址我还希望有一个容器,它是其地址的列表视图。从该列表视图中,我希望能够编辑/删除/查看地址。
我的数据库结构是:
表:
Contacts
<contains contact info and PK>
Addresses
<contains address info and PK>
ContactAddressesXref
ContactID
AddressID
我基本上编辑了ASP.NET MVC空应用程序提供给我的骨架文件
所以这是我在Contact控制器中尝试过的最后一件事:
'
' GET: /Contacts/Details/5
Function Details(ByVal id As Integer) As ActionResult
Dim this_contact =
From contact In dataContext.Contacts, address In addressDataContext.Addresses, xref In addressDataContext.ContactAddressesXrefs
Where address.AddressID = xref.AddressID And xref.ContactID = id
Select contact, address
Return (View(this_contact))
End Function
我真正想要做的是分别查询地址并将它们作为自己的集合发送。我不知道这样做是否正确,但是当我试图发送时 它吓坏了两个模型。
当然,这是因为视图中有这个:
<%@ Page Title="" Language="VB" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage(Of IEnumerable (Of TotallyAwesomeCRM.Contact))" %>
我试过了:
Inherits="System.Web.Mvc.ViewPage(Of IEnumerable (Of TotallyAwesomeCRM.Contact, Of TotallyAwesomeCRM.Address))
它说:
'InitializeCulture' is not a member of 'ASP.views_contacts_details_aspx'.
好吧,我试过了:
Inherits="System.Web.Mvc.ViewPage"
它在这里引发错误:
<div class="display-field"><%: Model.FirstName%></div>
当然,我在控制器中错了吗?我知道我不能只有System.Web.Mvc.ViewPage(IEnumerable(Of TotallyAwesomeCRM.Contact)),它必须接受更多。我试着使用Model.FirstName部分来说明了Contact.FirstName,但是当我开始编写Contact时,这并没有出现在下拉列表中。我可以用其他语言轻松完成这项工作,.Net似乎是一个不同的球类游戏。请帮忙!
答案 0 :(得分:1)
你不需要“todo:完成成员初始化......”(除了删除它:-))。您需要更改联系人和地址的属性。
试试这个:
Public Class ContactViewModel
Private _this_contact As Contact
Private _these_addresses As System.Linq.IQueryable(Of Address)
Sub New(ByVal this_contact As Contact, ByVal these_addresses As System.Linq.IQueryable(Of Address))
' TODO: Complete member initialization -this was added by the framework for me when I tried to call this class - I don't know what to do here - resources?
_this_contact = this_contact
_these_addresses = these_addresses
End Sub
Public ReadOnly Property Contact As Contact
Get
Return _this_contact
End Get
End Property
Public ReadOnly Property Addresses As System.Linq.IQueryable(Of Address)
Get
Return _these_addresses
End Get
End Property
End Class