C# - Why Does Response.Redirect Sometimes Pull Page From Cache

Jan 18, 2010

I've noticed that when I Response.Redirect to an .aspx page, it sometimes displays a cached page instead of actually executing the page and pulling fresh data from the database. I'm not using output caching or anything special in .Net here -- this is a CRM, and the caching is either happening on the client or, perhaps more likely, automatically in IIS. There is never a querystring involved, by the way. I'm passing a key via session. I know that if I used the querystring it would probably partially bypass the cache problem, but it's not an option in this case.

I did a little digging, and some people get around this by using Server.Transfer (which actually behaves differently than Response.Redirect and some of the details are not always desirable), and some other people said to set Response.Cache.SetCacheability(HttpCacheability.NoCache) on the page where I want to avoid caching. I thought .aspx pages were always flagged to avoid caching. Right?

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Direct Instruction For RESPONSE.REDIRECT To Go To Previous Page?

Jun 20, 2011

I have a Web application (Help Desk Ticket System) with an inbox to monitor incoming requests and made some filter buttons that help the user arrange the requests based on requester name, creation date, etc.

Every filter will simply call the same page but will add some code to the query string. Example, if the user presses a button labeled [Sort by Date] here is the code behind for that button:

[Code]...

But I know that Response.Redirect does not accept javascript, and I don't want to split the code between Code Behind file, and ASPX file (adding OnClientClick attribute) because I will need to perform both VB instructions and also redirecting the user.

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Use Response.Redirect In A Web Service?

Jul 7, 2006

Does someone know If Response.Redirect can be used inside a method of a web service. I'm trying and I get an error. If I use it outside of the web service I have no problems.

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Disable Page Cache To Force Page Load With Browser Back Button

May 7, 2009

I have an asp.net website that is using update panels on the page that i cant get to reload from the server. I have this for the disable page cache on the master page.

'Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1))
'Response.Cache.SetValidUntilExpires(False)
'Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches)
'Response.Cache.SetCacheability(HttpCacheability.NoCache)
'Response.Cache.SetNoStore()

When I click the browser back button to go back to the page it says the page has expired. the other pages on my web site work and call the page load, the only solution i found but cant use is to wrp the whole page in an update panel, but i cant do this becuase i have a report viewer on the page that does not work with ajax.

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Javascript - Using Jquery To Pull From Ajax Response

Jun 15, 2012

[URL] Response when viewing URL: {"Status":"OK","Message":"0","Info":"(none)"} Using JQuery how do I pull from that? I get how you do POST and sending but little lost has to how to pull from that. Do I use GET? Am I doing something like $.get("URL HERE"...?

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.net - Different Behaviour When Using Response.Redirect And SiteMaps?

Oct 7, 2011

My ASP.NET (VB.NET) application uses SiteMaps to display a navigation menu on the top of each page. In the code behind of some of the pages, I am dynamically amending the URLs of the SiteMaps nodes (to add parameters to the end of the URL) e.g. say I have somePage.aspx.vb and anotherPage.aspx.vb and they both contain the following:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
AddHandler SiteMap.SiteMapResolve, AddressOf Me.ExpandForumPaths
If Not Page.IsPostBack Then
Setup()

[code]....

My problem is this, if I am in the code behind of somePage.aspx and I do a Response.Redirect("~/anotherPage.aspx") - then, when anotherPage.aspx.vb is being loaded, it is the ExpandFormumPaths method of somePage.aspx.vb that is hit, not that of anotherPage.aspx.vb.

My understanding is that a Response.Redirect tells the browser to do a new request to the supplied URL - I don't know why it's hitting the method belonging to the previous page.

I've tried amending the method names (i.e. not having the node processing method called ExpandFormumPaths in all classes) but I still encountered the same issue.

When I go straight to the URL of anotherPage.aspx the correct method is hit, it is only when I am using Response.Redirect that this happens.

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Alternate Or Toggle Response.Redirect?

Oct 7, 2011

I'm fairly new to VB.net and this is my first post on this forum.I'm creating a website in Visual Web Developer 2010 Express in ASP.NET/VB and I'm trying to find out how to alternate a Reponse.Redirect, basically I'm looking to redirect every other visitor to go to a different site.

For example:

Visitor 1 gets: Response.Redirect("http://site-a.com")
Visitor 2 gets: Response.Redirect("http://site-b.com")
Visitor 3 gets: Response.Redirect("http://site-a.com")
Visitor 4 gets: Response.Redirect("http://site-b.com")
and so on

Also, if there is a way to set a cookie for that visitor, so if they visited within let's say the last 90 days, they will go to the same site they visited before, and not be redirected by the Response.Redirect.

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Asp.net - Call Javascript Just Before A Response Redirect?

Mar 12, 2009

I'm trying to run some java script just before a page redirect but it fails to run.
When I comment out the Response.Redirect all works fine but this goes against the particular requirements. how to implement this functionality?

Dim strscript As String = "<script>alert('hello');</script>"
If Not ClientScript.IsClientScriptBlockRegistered("clientscript") Then

[Code]....

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Asp.net - Response.Redirect, Keep Tabcontainer On Active Tab?

Oct 5, 2011

My VB.net tabcontainer needs to stay on the active tab when I have each submit going through the response.redirect. How can I achieve this? I need that response.redirect there because it will show what has been added in the main tab container.

<asp:TabContainer runat="server" ActiveTabIndex="0" Height="200px"
Width="175px" ScrollBars="Auto" EnableTheming="True" Font-
Underline="False" ID="TabContainer2" EnableViewState="False"
Style="float:right; padding-left: 110px; margin-bottom: 340px;"
OnActiveTabChanged="TabContainer1_ActiveTabChanged">

[Code]...

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Javascript Does Not Work With Response.redirect

Jul 9, 2009

[code]I have the above code in my aspx.vb file but the Response.write script doesnot work it directly redirects the page.but if i remove response.redirect the script works fine.

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.net - Response.redirect Sending Incorrect HTTPMethod?

Sep 22, 2009

I've got a strange problem with a Response.Redirect. I'm using VB.NET with the .NET 2 framework (so VS2005 & SP1).I've got a page that I do a form submit on (that's a proper form method="POST" hard-coded onto the page) and that properly posts me back the page data which is then processed. As part of that processing the system determines if we need to get sent to another URL after processing has been complete. So the request.httpmethod = "POST".

So if the "GotoPage" parameter has a URL specified we then do a response.redirect(URL, false). (False as we want page processing to complete in order to write some timing logs etc).The page correctly redirects but instead of the response having a "GET" as the request.httpmethod it has a "POST" instead Now, we're using our own custom framework so that we use the HTTPRequest method to determine if a page has been posted back or is being "Getted" so the "IsPagePostBack" property doesn't work (that only works when you're using the normal .NET controls and form submissions). In all other instances our code works happily but what might be causing the Request.httpMethod to not be being set correctly ? I've tried doing a response.clear before the redirect in case headers are being written out before hand but to no avail.

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.NET Response.Redirect Not Working Properly On New Server?

Jun 3, 2010

If you try to access a password protected page it does a security check and redirects you if you are not logged in, retaining the URL (ie. Members/MemberLogin.aspx?oc=/PodCast/Default.aspx)The vb script places the "/PodCast/Default.aspx" in a variable and holds it until the login process is complete.Once the user types in their username and password it is suppose to do a Response.Redirect(strRedirectURL) and go to the "/PodCast/Default.aspx" but instead it goes to the default.aspx page for logging in successfully

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Asp.net - Firefox Response.redirect Not Working For Files?

Aug 12, 2011

I am trying to allow the user to download an excel file, by using

Response.Redirect(
"http://localhost/myapp/download_folder/example excel file_july.xls")

in page load of an ASP.net page but on the client side i a m getting the following screen in firefox 3.5 You can observe that the file name and file type are shown as empty fields. The ok and cancel buttons are not doing anything.This happens only in firefox 3.5, it is working in firefox later versions and other browsers.I tried clearing the Response with Response.Clear(), using Response.BinaryWrite with the file byte array and even tried to open the file with the javascript by calling window.open(url).

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ASP.NET Cookie Expires Value Resets On Response.Redirect?

Jan 15, 2009

I have a script that reads a form and puts some info into a cookie:

[Code]...

The time is properly set right before it redirects, but when I try to print out that value this way (I have also tried Dim oCol as HttpCookieCollection = Request.Cookies, but I get the same result):

[Code]...

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.net - Response.Redirect Does Nothing (ASP.NET) And EventValidation Returns Error If Enabled?

Mar 7, 2011

I have a page in which one chooses from a selection of dynamically generated buttons. The ASPX code is as follows:

<div>
<asp:Repeater ID="rptrHalls" runat="server" OnItemCommand="Choose_Hall">
<ItemTemplate>
<asp:Button ID="btnChooseHall" runat="server"

[code]....

When I first tried running the code I received an error message of "Invalid postback/callback argument". I set the ASPX page to have a enableEventValidation="false" property and tried running it again. It generates the page fine but when I click on a dynamically generated button it acts as if it is loading something and then just brings me back to select_hall.aspx (the page all this code is one), when (as you can see above) it should take me to select_room.aspx.

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Javascript - Response.Redirect AFTER Call To JS Alert Or Confirm?

Apr 13, 2011

I am working on a VB.NET web application. When someone successfully changes their password I want to show a popup message that lets them know it was changed successfully. After they click OK I want to redirect them to the main page. Code looks like this:

ClientScript.RegisterStartupScript(Me.GetType(), "confirmScript", "ConfirmNewUser();", True)
Response.Redirect("MainPage.aspx")

Why does the redirect happen and the alert popup never displays?

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ALTERNATIVE OF RESPONSE.REDIRECT - Client.openRead To Send Request And Passing Line Through Finalurl

Nov 21, 2009

I am using a client.openRead to send request and passing line through finalurl.

Dim data As Stream = client.OpenRead(finalurl)

Now my server blocks ports and i am getting error on this line now is there any other solution to client.OpenRead and what ever i am sending throught this is code is going on other company's server so i can't tell then to change their way so is there any other solution to this?

I AM THINKING THAT IF PORTS THEN IMPOSSIBLE TO SEND REQUEST.SO ONLY WAY IS TO CHANTGE SERVER WHER I HOST MY SITE

Dim data As Stream = client.OpenRead(finalurl)

And in final url i have other sites url and some querystring data

For example

dim finalurl as string= [url]

I already use WebHttpRequest but it not works still server not allow it.But i try it with response.redirect and it works but not suiteable to my conditions.i want control on my site so i was using Dim data As Stream = client.OpenRead(finalurl) but now server block some ports due to some reasons

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Asp.net - Cache Object And Commit On Page Load?

Nov 30, 2011

What we want to do is save an entire control into Cache and recommit the properties on page load, including data items. But we'd like the controls to exist already in the page.

[Code]...

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Sql - How To Cache Multipledatasets? Or Get A Slow Asp.net Page To Run Faster

Dec 17, 2010

My page is loading to slowly, i am loading information from 2 giant dataviews, to get infromation about sales history, into a table. I am loading the information based on yesterdays sales/numbers.

I want to cache the data, but how could i do it if my query depends on the year selected, and the information the user wants. I was thinking it would be best to cache the pages.
[code...]

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Response.redirect Raises "Thread Was Being Aborted"

Feb 2, 2011

I've a VB.NET code called when I need to delete an object from DB. On Page_load I check if it's not post back (to prevent a manual refresh) and, after the deletion of the object I redirect to the caller page using Response.redirect. At this point my code raise an

[Code]...

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Webbrowser Navigate Just Reads The Page From The Cache And Does Not Read It From The Server?

Jul 23, 2010

I have a VB.Net project that creates a new Webbrowser instance which then navigates to a page in order to read the HTML into a variable ( then modify this before displaying in a visable webbrowser).The issue i have is that the webbrowser navigate just reads the page from the cache and does not read it from the server.

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Redirect A Page In XBAP

Nov 23, 2010

i'm creating a simple wpf browser application in vb.net.. my current problem is i don't know how to redirect a page using a hyperlink, being a newbie in the language.[code]

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Parser Error (could Not Read State "objDebugResolveAssemblyReference.cache) While Loading An Asp.net Page

Jun 4, 2009

i got an error while loading a page in asp.net.I have renamed the page before loading it.The error is as follows:-

**could not read state "objDebugResolveAssemblyReference.cache"**

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C# - Redirect Page When Session Lost?

Dec 4, 2009

If my sessions time out I want to re-direct the page to another URL: Say the home page. On my page I make use of a GridView that uses Session variables. If the session variable time expire(currently at 60min) and the user click on a row in the GridView I want to re-direct him/her to the home page of my site.

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C# - Show A Custom 404 Page In ASP.NET Without Redirect?

Sep 2, 2009

When a request is 404 in ASP.NET on IIS 7 i want a custom error page to be displayed. The URL in the address bar should not change, so no redirect. How can i do this?

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Responce.redirect() Is Not Working In .net To Go On Next Page?

Jun 27, 2009

responce.redirect() is not working in vb.net to go on next page?

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.net - Post-Redirect-Get (PRG) Summary Page On Submit?

Mar 19, 2012

So I read up on this method called PRG as a way of addressing the form double-submit issue. However, I have yet to find a descent implementation of the Summary Page / Success Message displayed to the user. The only way I can think of is storing a session variable, but I don't want it to persist on multiple refreshes. It should show the message/summary once, and be done. Furthermore, it would be ideal if the user could not return to the previously submitted page.

[Code]...

The question is, how to display this message on the redirect which directly results from the submit, and preferably not for any further refreshes? Or just simply display the message regardless of refreshes,whatever is easiest and makes the most sense.

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Asp.net - Page Redirect On Page_Load IF Record Exists?

Nov 13, 2010

I have an default.aspx page that I'm trying to have redirect the user to a different page depending on whether or not their deviceId is stored in the SQL Server database. It should direct the user to the login.aspx if the record for the user is found or to the newdevice.aspx page if there was no record found. I want this to occur on Page_Load but have not been able to figure it out so far.

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C# - Capture HTML Of Redirect Page Before It Redirects?

Sep 7, 2010

I am trying to read the HTML of a page that contains a non-delayed redirect. The following snippet (C#) will give me the destination/redirected page, not the initial one I need to see:

[Code]...

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C# - Redirect To Root Login Page From Web.config

Jun 3, 2011

I am redirect user to loging page when session expires. Login.aspx is in root. I declared path like this in web.config file.

[Code]...

It is working for all root .aspx pages. But it not working for sub folders pages like Reporting eport.aspx. So how to manage redirect page (Login.aspx) for root .aspx pages and sub folder .aspx pages?

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