2014-02-23 100 views
1

我打電話給一大堆列表框中的網頁,當每個頁面加載時,我想在定時器進入下一頁之前向用戶發送消息。該頁面包含具有文本框和發送表單內容的按鈕的表單。以下是我的代碼和我試圖提交的表單。VB.NET在文本框中輸入文本,然後按發送webbrowser

問題是,只要定時器進入下一個網頁,它就會將信息添加到文本框中,然後單擊該按鈕,但它在最後一分鐘完成,就像它正在加載下一頁一樣。沒有足夠的時間提交表格。我試過增加計時器的時間,但這一直沒有奏效。有人能指出我做錯了什麼嗎?提前致謝!

我的代碼:

Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick 

    If counter > ListBox2.Items.Count - 1 Then 
     WebBrowser1.Navigate("http://www.myserver.com/listofusers.aspx") 
     counter = 0 
     Timer1.Enabled = False 
     Button1.Enabled = True 
     Button1.Text = "Message the unmessaged" 
     ListBox2.Items.Clear() 
    Else 


     Button1.Enabled = False 
     Button1.Text = "Working... " 
     WebBrowser1.Navigate(ListBox2.Items(counter)) 
     Dim theElementCollection = WebBrowser1.Document.GetElementsByTagName("textarea") 
     For Each curElement As HtmlElement In theElementCollection 
      Dim controlName As String = curElement.GetAttribute("className").ToString 
      If controlName = "profile" Then 
       curElement.SetAttribute("value", "Your password is due to expire in 10 days, please change it as soon as possible") 
      End If 
     Next 


     Dim theElementCollection2 = WebBrowser1.Document.GetElementsByTagName("input") 
     For Each curElement As HtmlElement In theElementCollection2 
      If curElement.GetAttribute("className").Equals("button norm-green") Then 
       curElement.InvokeMember("click") 
      End If 
     Next 
    End If 
    counter = counter + 1 

End Sub 

形式:

<form action="sendmessage.aspx" method="post" name="sendmessage"> 

       <div class="aligncenter"> 
        <span class="headline txtBlue size16">Send a Quick Message!</span> 
        <input maxlength="40" name="subject" size="33" type="hidden" 
         value="Important information" /> 
        <textarea class="profile" name="message"></textarea><br /> 
        <input type="submit" class="button norm-green" style="" value="Send Quick Msg" name="sendmessage" /> 
       </div> 
      </form> 

回答

0

我整理我的問題。我在webbrowser1.documentcompleted()控件中放置了每個webbrowser語句,並在其周圍放置了一個if timer1.enabled = true語句。

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