The following code, pasted into a web form with a link button on it, will
cause the page_unload event to fire twice. If I remove the
response.redirect, the problem goes away :). I've got a work around, but I'm
curious how one is supposed to programmatically navigate between web pages
without the page_unload event firing twice.
Thanks,
Larry
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
'Put user code to initialize the page here
Stop
End Sub
Private Sub Page_Unload(ByVal sender As Object, ByVal e As System.EventArgs)
Handles MyBase.Unload
Stop
End Sub
Private Sub LinkButton1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles LinkButton1.Click
Response.Redirect("http://www.microsoft.com")
End Sub
End Class 4 6055
As the page is loaded the first time, it will invoke Page_Unload the
first time finally but just before rendering the HTML content to the
browser,
Then the link butten will invoke page postback, in which the
page_unload will be invoked again.
If just want to invoke once, try to use if(IsPostBack) to filter it.
HTH.
T.Z
As the page is loaded the first time, it will invoke Page_Unload the
first time finally but just before rendering the HTML content to the
browser,
Then the link butten will invoke page postback, in which the
page_unload will be invoked again.
If just want to invoke once, try to use if(IsPostBack) to filter it.
HTH.
T.Z
I know that; What happens in this case is:
Page_Load,
Page_Unload,
Page_Load,
LinkButton1_Click,
Page_Unload,
Page_Unload.
Notice the Page_Unload event fired twice. What is it about the
Response.Redirect causes two page_unload events?
"tzeng9" <tz****@gmail.com> wrote in message
news:11**********************@z14g2000cwz.googlegr oups.com... As the page is loaded the first time, it will invoke Page_Unload the first time finally but just before rendering the HTML content to the browser,
Then the link butten will invoke page postback, in which the page_unload will be invoked again.
If just want to invoke once, try to use if(IsPostBack) to filter it. HTH.
T.Z
every page request has a load and unload. a redirect in the response tells
the browser to request a new page. page unload has nothing to do with the
browser, its just the last step in the creating the html for the page, it
used to release objects you created during building the page.
-- bruce (sqlwork.com)
"Larry Morris" <lw******@reliasoft.biz> wrote in message
news:et**************@TK2MSFTNGP09.phx.gbl...
| I know that; What happens in this case is:
|
| Page_Load,
| Page_Unload,
|
| Page_Load,
| LinkButton1_Click,
| Page_Unload,
| Page_Unload.
|
| Notice the Page_Unload event fired twice. What is it about the
| Response.Redirect causes two page_unload events?
|
| "tzeng9" <tz****@gmail.com> wrote in message
| news:11**********************@z14g2000cwz.googlegr oups.com...
| > As the page is loaded the first time, it will invoke Page_Unload the
| > first time finally but just before rendering the HTML content to the
| > browser,
| >
| > Then the link butten will invoke page postback, in which the
| > page_unload will be invoked again.
| >
| > If just want to invoke once, try to use if(IsPostBack) to filter it.
| > HTH.
| >
| > T.Z
| >
|
| This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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