asp.net页面如何知道它的回发？ [英] How does asp.net page know it's postback?
问题描述
我需要使用HttpWebRequest类向一个asp.net页面发出请求
我需要欺骗这个页面以认为它是一个回发并点击了一个
按钮。但该页面没有处理点击事件，尽管我正在使用POST，但是b $ b。方法和发送所有表单字段
（除了__VIEWSTATE，这可能是原因吗？）。
所以问题是：asp在什么基础上.net页面设置ispostback
属性为true还是false？
问候，
-
Rudy
Hi,
I need to make a request to a asp.net page using HttpWebRequest class
and I need to trick this page into thinking it''s a postback and a
button was clicked. But the page doesn''t handle the click event,
despite I''m using "POST" method and sending all the form fields
(except of __VIEWSTATE, may this be the reason ?).
So the question is: on what basis does asp.net page set the ispostback
property to true or false?
Regards,
--
Rudy
推荐答案
" Rudy" < RR ****** @ poczta.onet.pl>在消息中写道
news：8a ************************** @ posting.google.c om ...
"Rudy" <rr******@poczta.onet.pl> wrote in message
news:8a**************************@posting.google.c om...
我需要使用HttpWebRequest类向asp.net页面发出请求
我需要欺骗这个页面以认为它是一个回发和一个<单击了br />按钮。但该页面并没有处理点击事件，尽管我正在使用POST按钮。方法和发送所有表单字段
（__VIEWSTATE除外，可能这是原因吗？）。
所以问题是：asp.net页面设置ispostback的基础是什么？ />属性为true还是false？
Hi,
I need to make a request to a asp.net page using HttpWebRequest class
and I need to trick this page into thinking it''s a postback and a
button was clicked. But the page doesn''t handle the click event,
despite I''m using "POST" method and sending all the form fields
(except of __VIEWSTATE, may this be the reason ?).
So the question is: on what basis does asp.net page set the ispostback
property to true or false?
我不知道，但我知道你需要发送ViewState。您需要
假装是浏览器并执行浏览器的操作。
John Saunders
I don''t know, but I do know that you need to send ViewState. You need to
pretend to be a browser and do what a browser would have done.
John Saunders
首先，检查回发属性是否正确...
IMO它更确切地说它使用了你需要填充的隐藏字段
假装点击了一个按钮（__eventargument，__ eventtarget）
这个页面的拥有者可能更清楚/更容易暴露
仅程序化界面（你的代码可能会在
UI更改后中断）。你可能也会遇到一些问题。
Patrice
-
" Rudy" < RR ****** @ poczta.onet.pl> écritdansle message de
news：8a ************************** @ posting.google.c om ...
First, check that the postback property is correct...
IMO it''s rather that it uses hidden fields that you need to fill to be able
to pretend to have clicked a button (__eventargument,__eventtarget)
It would likely cleaner/easier to have the owner of this page exposing a
programmatic only interface (your code could break after a change in the
UI). It''s likely you''ll have also some problems with the viewstate.
Patrice
--
"Rudy" <rr******@poczta.onet.pl> a écrit dans le message de
news:8a**************************@posting.google.c om...
我需要使用HttpWebRequest类向asp.net页面发出请求
我需要欺骗这个页面以认为它是一个回发并单击了一个
按钮。但该页面并没有处理点击事件，尽管我正在使用POST按钮。方法和发送所有表单字段
（__VIEWSTATE除外，可能这是原因吗？）。
所以问题是：asp.net页面设置ispostback的基础是什么？ />属性为真还是假？
问候，
-
Rudy
Hi,
I need to make a request to a asp.net page using HttpWebRequest class
and I need to trick this page into thinking it''s a postback and a
button was clicked. But the page doesn''t handle the click event,
despite I''m using "POST" method and sending all the form fields
(except of __VIEWSTATE, may this be the reason ?).
So the question is: on what basis does asp.net page set the ispostback
property to true or false?
Regards,
--
Rudy
基于两个隐藏元素__eventtargent和__eventargument。
-
-Saravana
http://dotnetjunkies.com/WebLog/saravana/
www.ExtremeExperts.com
" Rudy" < RR ****** @ poczta.onet.pl>在消息中写道
news：8a ************************** @ posting.google.c om ...
based on two hidden element __eventtargent and __eventargument.
--
-Saravana
http://dotnetjunkies.com/WebLog/saravana/
www.ExtremeExperts.com
"Rudy" <rr******@poczta.onet.pl> wrote in message
news:8a**************************@posting.google.c om...
我需要使用HttpWebRequest类向asp.net页面发出请求
我需要欺骗这个页面以认为它是一个回发和一个<单击了br />按钮。但该页面并没有处理点击事件，尽管我正在使用POST按钮。方法和发送所有表单字段
（__VIEWSTATE除外，可能这是原因吗？）。
所以问题是：asp.net页面设置ispostback的基础是什么？ />属性为真还是假？
问候，
-
鲁迪
Hi,
I need to make a request to a asp.net page using HttpWebRequest class
and I need to trick this page into thinking it''s a postback and a
button was clicked. But the page doesn''t handle the click event,
despite I''m using "POST" method and sending all the form fields
(except of __VIEWSTATE, may this be the reason ?).
So the question is: on what basis does asp.net page set the ispostback
property to true or false?
Regards,
--
Rudy
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