使用 backgroundworker 时转换无效

Question

我已将我的代码从 Form_Load 移至 BackgroundWorker，但它显示 'Specified cast is not valid'，上传至此处：My Codes Image

    Private Sub FirstRunWorker_DoWork(sender As Object, e As System.ComponentModel.DoWorkEventArgs) Handles FirstRunWorker.DoWork
    Dim url1 As String = publicurl & "index.php"
    Dim datavillages1 As String = TGet("", url1, url1, My.Settings.useragent)
    If datavillages1.Contains("error") Then
        'ADD LOG
    Else
        wb.DocumentText = datavillages1
        While wb.ReadyState <> WebBrowserReadyState.Complete
            Application.DoEvents()
        End While
    End If
End Sub

主要是它的工作，但在 backgroundworker 中不是，感谢您的帮助

Answer 1

感谢您的帮助和解答，我用 invoke 解决了我的问题！现在我可以访问任何控件和功能

    Me.Invoke(New MethodInvoker(Function()
'dosomething
                                        End Function))

使用 backgroundworker 时转换无效

cast not valid when using backgroundworker

vb.net

multithreading

backgroundworker