Question

代码是VB，使用MVC 4（可能是5）我试图弄清楚我的代码有两个问题，到目前为止，我找不到任何导致我当前问题的问题。首先，当模型被传回时，似乎什么都没有（包含在内的所有元素都没有）。这是一个问题。我已经在线查看并且无法找到解决方案（或者建议问题是什么）。其次，当其中一个按钮被击中时，它不会立即进入正确的HttpPost方法，而是循环通过它们（以不稳定的顺序）。这也是一个问题。

这是控制器。模型将通过索引传递给View，标记为httpget。

Imports System.Data.SqlClient
Imports System.Web.Mvc
Imports System.Web.Routing
Imports System.ComponentModel.DataAnnotations

Namespace Test
    <HttpPost()> _
    Function SelectUser(ByVal Model As Test.Models.AdminModel) As ActionResult
        Return View("Index", Model)
    End Function

    <HttpPost()> _
    Function AddEnv(ByVal Model As Test2.Models.AdminModel) As ActionResult
        Return View("Index", Model)
    End Function

    <HttpPost()> _
    Function RemoveEnv(ByVal Model As Test.Models.AdminModel) As ActionResult
        Return View("Index", Model)
    End Function

    <HttpPost()> _
    Function AddApp(ByVal Model As Test.Models.AdminModel) As ActionResult
        Return View("Index", Model)
    End Function

    <HttpPost()> _
    Function RemoveApp(ByVal Model As Test.Models.AdminModel) As ActionResult
        Return View("Index", Model)
    End Function
End Namespace

这是视图。该模型似乎正确绑定（我得到intellisense）

@ModelType Test.Test.Models.AdminModel
@Code
ViewData("Title") = "Admin"
Layout = "~/Views/Shared/_Admin.vbhtml"
End Code  

<table>
<tr>
    @Using (Html.BeginForm("SelectUser", "Admin", method:=FormMethod.Post))
        @<td>Username:&nbsp;</td>
        @<td>@Html.TextBoxFor(Function(Model) Model.UserAccount.Username)</td>
        @<td><a href="javascript:$('form').submit();" class='BUTTON' style="display:   inline-block; height: 30px; width: 80px"><span>Select User</span></a></td>
        @<td><input type ="submit" Class="BUTTON" style="display: inline-block; height:   30px; width: 80px" value ="Login"/></td>
    End Using
</tr>

<tr>
    @Using (Html.BeginForm("AddApp", "Admin", method:=FormMethod.Post))
        @<td>Add App:&nbsp;</td>
        @<td>@Html.TextBoxFor(Function(Model) Model.NewApp)</td>
        @<td><a href="javascript:$('form').submit();" class='BUTTON' style="display: inline-block; height: 30px; width: 80px"><span>Add App</span></a></td>
        @<td><input type ="submit" Class="BUTTON" style="display: inline-block; height: 30px; width: 80px" value ="Login"/></td>
    End Using

</tr>
<tr>
    @Using (Html.BeginForm("RemoveApp", "Admin", method:=FormMethod.Post))
        @<td>Remove App:</td>
        @<td>@Html.DropDownListFor(Function(Model) Model.AppList, Model.AppList)</td>
        @<td><a href="javascript:$('form').submit();" class='BUTTON' style="display: inline-block; height: 30px; width: 80px"><span>Remove App</span></a></td>
        @<td><input type ="submit" Class="BUTTON" style="display: inline-block; height: 30px; width: 80px" value ="Login"/></td>
    End Using
</tr>

<tr>
    @Using (Html.BeginForm("AddEnv", "Admin", method:=FormMethod.Post))
        @<td>Add Env:&nbsp;</td>
        @<td>@Html.TextBoxFor(Function(Model) Model.NewEnv)</td>
        @<td><a href="javascript:$('form').submit();" class='BUTTON' style="display: inline-block; height: 30px; width: 80px"><span>Add Env</span></a></td>
        @<td><input type ="submit" Class="BUTTON" style="display: inline-block; height: 30px; width: 80px" value ="Login"/></td>
    End Using
</tr>
<tr>
    @Using (Html.BeginForm("RemoveEnv", "Admin", method:=FormMethod.Post))
        @<td>Remove Env:</td>
        @<td>@Html.DropDownListFor(Function(Model) Model.EnvList, Model.EnvList)</td>
        @<td><a href="javascript:$('form').submit();" class='BUTTON' style="display: inline-block; height: 30px; width: 80px"><span>Remove Env</span></a></td>
        @<td><input type ="submit" Class="BUTTON" style="display: inline-block; height:     30px; width: 80px" value ="Login"/></td>
    End Using
</tr>

</table>

最后，模型：

Imports System.ComponentModel.DataAnnotations
Namespace Test.Models
Public Class AdminModel
    <Required(ErrorMessage:="User Name field is required"), Display(Name:="User Name")>
    Public UserAccount As User2.User
    Public AppList As SelectList
    Public EnvList As SelectList
    Public PermissionsTable As DataTable
    Public NewEnv As String
    Public NewApp As String
End Class
End Namespace

Answer 1

您应该在模型中使用属性，而不是公共变量。

Public Property UserAccount As User2.User
    Public Property AppList As SelectList
    Public Property EnvList As SelectList
    Public Property PermissionsTable As DataTable
    Public Property NewEnv As String
    Public Property NewApp As String

MVC将Model传递给Controller问题

1 个答案: