is not marked as serializable

[amirghaffarie1362]

i use below code for create arraylist()

 Dim ItemsT As New ArrayList()
        If ViewState("items") IsNot Nothing Then
            ItemsT = DirectCast(ViewState("items"), ArrayList)
        Else
            ItemsT = New ArrayList()
        End If
        Dim itemID As Integer = EasyListBoxItemT.SelectedValue
        Dim count As String = TextBoxCount.Text
        Dim Dv As Data.DataView
        Dv = ListData.vag_list_GetItem(itemID).Tables(0).DefaultView
        Dim name As String = Dv.Item(0).Item("name")
        Dim Code As String = Dv.Item(0).Item("Code")
        Dim additem As ItemInf = New ItemInf()
        additem.ID = itemID
        additem.Code = Code
        additem.count = count
        additem.Name = name
        ItemsT.Add(additem)
        ViewState("items") = ItemsT
        TextBoxCount.Text = ""
        EasyListBoxItemT.ClearSelection()


Public Class ItemInf
    Public itemID As Integer
    Public _Name As String
    Public _Code As String
    Public _count As String
    'Public Sub New(ByVal itemid As Integer, ByVal name As String, ByVal code As String, ByVal count As String)
    '    Me.itemID = itemid
    '    Me._Code = code
    '    Me._count = count
    '    Me._Name = name
    'End Sub
    Public Property ID() As Integer
        Get
            Return itemID
        End Get
        Set(ByVal value As Integer)
            itemID = value
        End Set
    End Property
    Public Property Name() As String
        Get
            Return _Name
        End Get
        Set(ByVal value As String)
            _Name = value
        End Set
    End Property
    Public Property Code() As String
        Get
            Return _Code
        End Get
        Set(ByVal value As String)
            _Code = value
        End Set
    End Property
    Public Property count() As String
        Get
            Return _count
        End Get
        Set(ByVal value As String)
            _count = value
        End Set
    End Property
End Class

But i got this error :
Type 'ItemInf' in Assembly 'App_Code.pnpn3 1qh, Version=0.0.0.0 , Culture=neutral , PublicKeyToken= null' is not marked as serializable

any sugestion ??

[r035198x]

Well, if at any point in your program you require objects of type ItemInf to be serialized than you need to mark the class ItemInf as serializable.

[amirghaffarie1362]

yes i found out i just should add <Serializable() > _ above the class