[Javascript]使用 ASP.NET 網頁傳值並觸發event(Use ASP.NET page by value and triggers event)

問題

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使用 ASP.NET 網頁傳值並觸發event



解決方法

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page1控制項:btn1,btn2,txtReturnValue
page2控制項:btnok

流程如下
由btn1觸發開page2的網頁=>page2按下btnok後傳txtReturnValue回page1,並觸發btn2的事件

page1 aspx    

<script language="javascript">    
function OpenPage()    
 {    
 var txtname =document.getElementById('txtname').value;    
 var txtReturn=document.Form1.txtReturn;    
 var strUrl;    
 txtReturn.value=""    
 strUrl="../page2.aspx?";    
 strUrl+="name="+ txtname;    
     
 var intheight=500;    
 var intwidth=750;    
 var PosTop=(screen.height-intheight)/2;    
 var PosLeft=(screen.width-intwidth)/2;     
 window.open(strUrl,'page2','toolbar=no,menubar=no,location=no,directories=no,status=yes,scrollbars=yes,resizable=yes,top='+PosTop+',left='+PosLeft+',width ='+intwidth+',height ='+intheight);    
 return false;    
 }   
</script>    
'要讓javascript抓的到開啟視窗的主頁面物件,需要用標準的html物件歐!!    
<asp:textbox id="txtReturnValue" runat="server" Width="100%" MaxLength="500">    
<INPUT id="txtReturnValue" type="hidden" name="txtReturn" runat="server">    
<asp:textbox id="txtname" runat="server" Width="100%" MaxLength="500">    
    
  <asp:Button ID="btn1" runat="server" Text="開新網頁" />    
  <asp:button id="btn2" runat="server" Text="btn2" CssClass="button"     />

page1 vb

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        Me. btn1.Attributes.Add("onclick", "return OpenPage();")

End Sub

Protected Sub btn2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn2.Click

     '要執行寫在這裡
ME. txtname.Text= txtReturnValue.Text           

End Sub

page2 vb

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        Response.Expires = 0

        ViewState("name") = Request.QueryString("name")

End Sub

Protected Sub btnok_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnok.Click

        Dim strScript As String = ""

 strScript = "if (window.opener!=null) {"

        strScript += "window.opener.document.getElementById('txtReturnValue').value='王曉明';"

        strScript += "var btn2=window.opener.document.getElementById('btn2');"

        strScript += "btn2.click();"

        strScript += "window.opener.focus();"

        strScript += "}"

        strScript += "window.opener=null; window.close();"

End Sub