从字符串转换为类型Integer无效

Question

我在我的应用程序中有以下代码...没有被声明为整数,所以我不明白或看到问题可能在哪里...它说:

从字符串"9838 Co Rd 47"到"Integer"类型的转换无效.

地址作为一个字符串流过整个函数,我认为它可能会被改变的唯一地方是函数调用...下面是抛出异常的函数.后跟返回地址的函数...错误来自_holder = item.bill_to.remove(地址)行

  For Each item In _QuickImport
            Dim BusinessName As String = Nothing
            Dim CustomerName As String = " "
            _Id = item.id
            If Not String.IsNullOrEmpty(item.Customer) Then
                Dim _holder As String = String.Empty
                Dim _contact_ As String = item.Contact
                Dim _address_ As String = String.Empty

                If item.Bill_to.Contains(_contact_) Then
                    _holder = item.Bill_to.Replace(_contact_, " ")
                End If
                If Not String.IsNullOrEmpty(_holder) Then
                    If item.Bill_to.Contains("Co Rd") Then
                        _address_ = ExtractAddressWithCoRd(_holder)
                    End If
                Else
                    If item.Bill_to.Contains("Co Rd") Then
                        _address_ = ExtractAddressWithCoRd(item.Bill_to)
                    End If
                End If

                If Not String.IsNullOrWhiteSpace(item.Customer) Then
                    If item.Customer.Contains(":") Then
                        BusinessName = item.Customer.Split(":")(0)
                        CustomerName = item.Customer.Split(":")(1)
                    Else
                        CustomerName = item.Customer
                    End If
                End If


                If Not String.IsNullOrEmpty(BusinessName) Then
                    If item.Bill_to.Contains(BusinessName) Then
                        _holder = item.Bill_to.Replace(BusinessName, " ")
                    End If
                End If



                Dim _Id_ As Integer = _Id

                If Not String.IsNullOrWhiteSpace(_holder) Then
                    Dim _check As Boolean = True
                    _check = ValidZip(_holder)
                    If _check = True Then
                        If Not String.IsNullOrEmpty(_address_) Then
                            _holder = Convert.ToString(_holder)
                            _address_ = Convert.ToString(_address_)
                            _holder = item.Bill_to.Remove(_address_)
                        End If
                        parseAddress(_holder, _Id)

另一个功能是:

    Private Function ExtractAddressWithCoRd(ByVal input As String) As String
        Dim add1 As String = String.Empty
        Dim add2 As String = String.Empty
        Dim parts() As String = input.Split(" "c)
        For i As Integer = 0 To parts.Length - 1
            If parts(i) = "Co" AndAlso i > 0 Then
                add1 = parts(i - 1)
            ElseIf parts(i) = "Rd" AndAlso i < parts.Length - 1 Then
                add2 = parts(i + 1)
            End If
        Next

        Return add1 + " Co Rd " + add2
    End Function

这是我认为某些东西被改为整数值的地方......但是这也被声明为字符串......

有任何想法吗？？？？

Answer 1

这是我认为某些东西被改为整数值的地方......

不,那不是它.再次阅读错误消息:

从字符串"9838 Co Rd 47"到"Integer"类型的转换无效.

"从字符串转换"意味着您的_address_变量确实是一个字符串,它的值甚至显示("9838 Co Rd 47").

它尝试将此字符串转换为整数,因为它item.Bill_to是a String并且String.Remove需要一个整数参数(从中删除字符的位置),但是您传递的是字符串.您正在寻找的是String.Replace,您已经在其他地方使用过的:

_holder = item.Bill_to.Replace(_address_, "")