将JSON字符串转换为.net类

Question

在将以下JSON字符串转换为.net类时，我遇到了问题。到目前为止，我创建的课程也在下面。我无法上班的特定部分是group_access和role标签。我知道这些是对象数组，但是当我尝试转换对象时，出现以下错误无法将当前JSON对象（例如{“ name”：“ value”}）反序列化为类型'System.Array'，因为该类型需要JSON数组（例如[1,2,3]）正确反序列化。

使用Visual Studio工具（Edit> Paste Special> JSON）和jscon2csharp.com，会在转换角色和group_access标签时出错。

{
id: 122404,
email: 'mike@email.com',
fname: 'Mike',
lname: 'Doe',
full_name: 'Mike Doe',
resource_id: '001002',
title: '',
last_login: '2016-11-01 09:15:23',
tags: [
    'Math Department', 'New Teachers'
],
grades: [
    4, 5, 6
],
targets: [
    'Option 1: 3 Informal Obs.'
],
caseload_tags: [],
group_access: [
    10: 2
    25527: 1
    25645: 1
    25653: 4
],
roles: [
    10: [
        2015: 2,
        2016: 2
    ],
    25527: [
        2015: 2,
        2016: 1
    ]
    25645: [
        2015: 1,
        2016: 1
    ]
    25653: [
        2015: 3,
        2016: 4
    ]
]
}

Public Class Item
    Public Property id As Integer
    Public Property email As String
    Public Property fname As String
    Public Property lname As String
    Public Property full_name As String
    Public Property resource_id As String
    Public Property title As String
    Public Property tags As IList(Of String)
    Public Property grades As IList(Of String)
    Public Property targets As IList(Of String)
    Public Property group_access As Array
    Public Property roles As Array
End Class

Public Class RootObject
    Public Property type As String
    Public Property limit As Integer
    Public Property offset As Integer
    Public Property total As Integer
    Public Property time As String
    Public Property items As List(Of Item)
    Public Property items_count As Integer
End Class