Question

出于某种原因，我无法获得被击中的动作。我正在使用RedirectToAction将流从一个动作传递到另一个动作，但它不会进入该功能。

这是第一个动作：

Public Function AddToCart(productId As Integer, returnUrl As String) As RedirectToRouteResult
    Dim product As Product = Me.Repository.Products _
        .FirstOrDefault(Function(p) p.ProductId = productId)

    If Not IsNothing(product) Then
        Me.Cart.AddItem(product, 1)
    End If

    Return RedirectToAction("Index", New With {.returnUrl = returnUrl})

End Function

该动作被击中（由断点验证）。通过Return RedirectToAction("List", New With {.returnUrl = returnUrl})调用的后续操作（索引）永远不会被命中（也可以通过断点验证。

这是索引动作功能：

Public Function Index(returnUrl As String) As ViewResult
    Dim cartIndexViewModel As New CartIndexViewModel() With { _
        .Cart = Me.Cart, _
        .ReturnUrl = returnUrl _
    }
    Return View(cartIndexViewModel)
End Function

我不确定它是否相关，但值得注意的是，我为索引操作创建了一个视图，但后来删除并重新创建了它。

作为一个完整性检查，我创建了另一个名为列表的动作，它与索引动作相同，并且此动作确实被击中（再次，由断点验证）

这是我的控制器的全部代码：

Imports SportsStore.Domain

Namespace SportsStore.WebUI
    Public Class CartController
        Inherits System.Web.Mvc.Controller

#Region "Properties"

Public Property Cart As Cart
    Get
        If IsNothing(Session("Cart")) Then
            Session("Cart") = New Cart()
        End If
        Return CType(Session("Cart"), Cart)
    End Get
    Set(value As Cart)
        Session("Cart") = value
    End Set
End Property

Private _Repository As IProductRepository
Private Property Repository() As IProductRepository
    Get
        Return _Repository
    End Get
    Set(ByVal value As IProductRepository)
        _Repository = value
    End Set
End Property

#End Region 'Properties

#Region "Constructors"

    Public Sub New(repository As IProductRepository)
        Me.Repository = repository
    End Sub

#End Region 'Constructors

#Region "Actions"
        '
        ' GET: /Cart

    Public Function AddToCart(productId As Integer, returnUrl As String) As RedirectToRouteResult
        Dim product As Product = Me.Repository.Products _
            .FirstOrDefault(Function(p) p.ProductId = productId)

        If Not IsNothing(product) Then
            Me.Cart.AddItem(product, 1)
        End If

'DOES NOT WORK
        'Return RedirectToAction("List", New With {.returnUrl = returnUrl})
'WORKS
        Return RedirectToAction("Index", New With {.returnUrl = returnUrl})

    End Function

    Public Function RemoveFromCart(productId As Integer, returnUrl As String) As RedirectToRouteResult
        Dim product As Product = Me.Repository.Products _
            .FirstOrDefault(Function(p) p.ProductId = productId)

        If Not IsNothing(product) Then
            Me.Cart.RemoveLine(product)
        End If

        Return RedirectToAction("Index", New With {.returnUrl = returnUrl})

    End Function

    Public Function List(returnUrl As String) As ViewResult
        Dim cartIndexViewModel As New CartIndexViewModel() With { _
            .Cart = Me.Cart, _
            .ReturnUrl = returnUrl _
        }
        Return View(cartIndexViewModel)
    End Function

    Public Function Index(returnUrl As String) As ViewResult
        Dim cartIndexViewModel As New CartIndexViewModel() With { _
            .Cart = Me.Cart, _
            .ReturnUrl = returnUrl _
        }
        Return View(cartIndexViewModel)
    End Function

#End Region 'Actions

    End Class
End Namespace

这是项目的结构：

Project Structure

我错过了什么？

Answer 1

根据您的代码，您似乎从AddToCart（）重定向到Index操作而不是List操作。

Return RedirectToAction("Index", New With {.returnUrl = returnUrl})

为什么这个动作没有被击中？

1 个答案: