Question

下面是一个网页示例，我希望每隔5秒左右或者单击一个按钮时可以选择刷新它。我只是看不到任何会刷新页面的方法。

Private Sub MainPage_Loaded(sender As Object, e As RoutedEventArgs) Handles Me.Loaded
    webview.Navigate(New Uri("http://www.google.com"))

End Sub

Private Sub Button_Click_1(sender As Object, e As RoutedEventArgs)

End Sub

Answer 1

使用计时器：

Private Sub MainPage_Loaded(sender As Object, e As RoutedEventArgs) Handles Me.Loaded

     Dim t As Timer = New Timer()
     webview.Navigate(New Uri("http://www.google.com"))

     t.Tick += New EventHandler(Timer_Tick) ''For every tick, it will call the event
     t.Interval = 5000 ''Timer will tick every 5 seconds
     t.Enabled = True  ''Enable Timer
     t.Start()    ''Starts Timer

End Sub

Private Sub Timer_Tick (sender As Object, e As RoutedEventArgs)

    webView.Navigate(New Uri("http://www.google.com"))

End Sub

Answer 2

再次调用导航到url应该可以解决问题，并且基本上是相同的事情

Private Sub MainPage_Loaded(sender As Object, e As RoutedEventArgs) Handles Me.Loaded
    webview.Navigate(New Uri("http://www.google.com"))

End Sub

Private Sub Button_Click_1(sender As Object, e As RoutedEventArgs)
     webview.Navigate(New Uri("http://www.google.com"))
End Sub

编辑：不使用按钮回答问题点击

请查看here，了解有关计时器及其使用方法的信息。

如何在Windows 8 Visual Basic中每5秒刷新一次网页？

2 个答案: