Webbrowser類DocumentComplete事件不在類中觸發（不在WinForm中）

Question

我在類中使用WebBrowser類。 我想添加webbrowser_documentcomplete事件處理程序，但我發現該事件不發射。請找到我正在使用的以下代碼。此代碼使用Windows窗體但不在課堂上。

Imports System.Windows.Forms 

Imports System.Threading 

Public Class GoogleSearch 

    Dim WithEvents WBBrowser As New Windows.Forms.WebBrowser 

    Dim TimCount As New System.Timers.Timer() 

    Sub New(ByVal SearchParameter As String, ByVal ResultPage As Integer) 


     TimCount.Interval = 2000 
     TimCount.Enabled = False 
     AddHandler TimCount.Elapsed, AddressOf TimCount_Tick 


     WBBrowser.Visible = True 
     WBBrowser.ScriptErrorsSuppressed = True 

     AddHandler WBBrowser.DocumentCompleted, AddressOf WBBrowser_DocumentCompleted 


     WBBrowser.Navigate("http://www.google.com", False) 
    End Sub 

    Private Sub TimCount_Tick(ByVal sender As Object, ByVal e As System.EventArgs) 
     Try 
      TimCount.Enabled = False 
'Some code goes here 

     Catch ex As Exception 
      MsgBox(ex.Message) 
     End Try 
    End Sub 

    Private Sub WBBrowser_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.EventArgs) 
     Try 
      If WBBrowser.ReadyState <> Windows.Forms.WebBrowserReadyState.Complete Then 
       Return 
      Else 
       TimCount.Start() 
      End If 
     Catch ex As Exception 
      MsgBox(ex.Message) 
     End Try 
    End Sub 

End Class 

Answer 1

簽名爲您DocumentCompleted事件是：

(ByVal sender As Object, ByVal e As WebBrowserDocumentCompletedEventArgs) 

驚訝，編譯器沒有在你放水有關。