MVC :: Clearing Output Cache?
Jun 26, 2010
I'm running an ASP.NET MVC website where several page controllers are decorated with an output cache attribute like:
[OutputCache(Duration = someduration..., VaryByParam = "*")]
These are typically forms where some lookup data are drawn from a database. These data change rarely, so the cache duration is typically set to 24 hours. Anyway, my question is: when the sql server is updated with new data in this area, is there a way of forcing such pages to "refresh" rather than keeping the cached output? Or if this cannot be done, is there at least a way of clearing the whole cache for the website?
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Nov 2, 2010
I need to enable caching in my asp.net application, but I do not want to use the webserver's memory for holding cache objects. If I add the page directive for output caching will the page be stored in the asp.net cache object?
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Jul 20, 2010
I have MVC 2 site, and I.E is cacheing word documents linked on my site. I know there is a way to clear cache before every action in the controller. But for these links i am not using action, i am just creating regular href links.. Is there anyway i can clear the cache?
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Jun 22, 2011
I have a new ASP.Net web project and every time I change anything in the CSS file I need to delete temp internet files before I can see my changes?
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Jan 26, 2011
Users can edit images downloaded from my site and then upload them back using a WCF Web Service. The problem is when users go to view images, they often do not see the latest versions because of caching. I'd rather not turn off the cache because it substantially reduces bandwidth. Is there a way to have the Web Service perform some action upon an upload to notify the next web client call that the image has changed?
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Dec 11, 2010
i have a rest url which inserts data, on insertion of the data i want to clear the cache?
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Oct 28, 2010
You know I have the way to Cache the data I've got from the SQL Server over data caching. In addition I can output cache web user controls.Whats about a web user control contains data from a SQL database? Does it make sense to cache the data and also cache the control?What is the best solution for the combination of these two components?
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May 16, 2010
I use this type of cache code on my pages
<%@ OutputCache Duration="60" VaryByParam="*" VaryByCustom="browser" %>
An issue by example. I have a page with the asp.net 2 (MSVS 2005) membership menu controls <asp:logonview etc on them. This control show different menus depending on if the member is logged on or not. I am using forms cookie authentication. The sequence of events. Page1 has the above cache settings and a logonview menu control on it. I am not logged on. I goto Page1. I view the page, and the logonvew control shows the button to logon. So correctly it has not detected a membership cookie and shows the logon button. I log on. I go back to page1, yet the logonview has not updated the menu for the newly logon status, as the page is sourced from the cache. I have to wait 60 seconds before the page can be rendered correctly. When the page is updated for logon status, the menu button for logon does not show, it should show Welcome Member Joe Bloggs. How can all pages cache be cleared when a log on happens, so there is not cache limbo, and the logonview menu control shows the correct status always?
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Jul 13, 2010
I'm trying to cache user controls and on some pages i want to cache single objects. There are multiple ways of implementing caching, and my head is breaking over it.
The way I see the caching options now:
You have the PartialCaching option which is set to cache the control for 30 minutes, and after that it clears itself... You have the varyByParam to identity the page by its querystring paramaters... or other vary options
But i just cant find an appropriate way to add caching to a control, and be able to clear the caching programmatically when i update one of the objects used in the control from the backend.
You can do HttpContext.Current.Cache.Insert(), which accepts a key on which you can destroy the caching item later by using remove... This can save objects in cache but can you use options like varyByParam?
My questions are burnt down to two:
Is there a way to clear the caching on specific user controls from the code? If yes, can this be done according to the varyby options? How would the object caching respond to logged in users or anonymous users using Insert()?
EDIT: I'm caching multiple things.... And I'm really flabbergasted in which choice to make referring to caching. Can the Cache.Insert be varied by Parameters?
The main problem is peopling editing things from the backend, which needs to trigger an event that reinstantiates or clears all caching items referring that object.
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May 11, 2010
I've got a website that has a number of host headers. Depending on the host header, the results are different - both visually (theme'd) and data.
So lets imagine i have a website called 'Foo' - that returns search results (original, eh?).
Now, the same code runs both sites. It is physically the same server/website (using Host Headers) :-
[URL]
And the data is different for the same search result, based on the host name (ie. us results for [URL] results for [URL]
SO .. if i wish to use OutputCaching .. can this be handled / differ by the host name?
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Sep 9, 2010
Suppose i have an controller action that i would like to output cache.
public class HomeController : Controller
{
[OutputCache(Duration=10, VaryByParam="none")]
public ActionResult Index()[code]....
I need to dynamically set dependency to an external file inside the code. How can i do that?
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Mar 25, 2010
I have different urls that points to the same code
www.url1.com
www.url2.com
I need to use the cache, but if the asp net cache is enabled when someone access to www.url1.com next person accessing www.url2.com could get the previously cached data (www.url1.com)
I need to have ALL caches activated except this one.
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Dec 6, 2010
I implemented : <%@ OutputCache Duration="43200" VaryByParam="none" location="Server" VaryByCustom="RawURL" %>
I have got a sitemap.xml with all url(about 12000) possible in my site.
I would now if it's judicious to create an application that will parse my sitemap in
order to request all url?
The Goal is caching all my web site to increase velocity.
I precise my question :Each page take about 10 sec to be created and the cache duration and cache duration is 12 hours
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Mar 18, 2011
IIS7, WINDOWS WEB SERVER 2008, ASP.NET 4.0 Does the output cache work when using webgarden?
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Jul 20, 2010
My web client requires client-side output caching since it makes use of its own Back and Forward buttons (which basically just call the browser back/forward buttons).
The issue I'm having, however, is (of course) when the user signs out of the app. The client-side output cache remains so anyone can click the "back" button and it appears to be signed in again. I've researched a few solutions, but most involve server-side output caching or no output caching at all.
I've had success with server caching and HttpResponse.RemoveOutputCacheItem, but unfortunately I need the client side caching.
Is it at all possible to clear this client side output cache upon logging out?
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Jan 6, 2011
In my asp.net web application I would like to clear all cache upon login when I click the back button in IE. I have tried various different ways but after I click the back button and then click the forward button it goes back to the submission aspx page with the same cache values. I am using master pages as well, if this makes any difference.
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Dec 23, 2010
On our website we use standard asp cache with duration set to 5h.
It works fine, but sometimes the publisher add some special content that need to be showed impatiently on many different sub-pages (example some promoted article).
That's what I need to do it's easy to use page like this:
[URL]
I want to clear SERVER SIDE CACHE.
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May 18, 2010
I'm trying to cache a complex page with lots of controls on it so that if the user navigates to it later it will look like it did when he last saw it.The page has controls which post back and other controls are populated depending on the selections.
I'm using [Code]....
after the <@ Page directive.
What happens is that a postback gets the cached page, so no processing and it looks the same regardless of user selections. So far so good. But if I browse to another page and return by a link, the cached version is ignored and the default page is created again. This is more or less the opposite to what i want.
I attempted to use the validation callback to ensure that a postback resulted in a new version, and that worked, but it still ignored the cached page if it wasn't a postback.I realise that it will need more work to ensure each user gets their version of the page from the cache, but why bother if this doesn't work.
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Mar 22, 2010
UserControl: How to set Output Cache duration programaticaly?
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Apr 15, 2010
I want to use an Enum value for the types of VaryByCustom parameters I will support, is it possible to do this?
I tried setting it in the page itself
<%@ OutputCache Duration="600" VaryByParam="none"
VaryByCustom='<%=VaryByCustomType.IsAuthenticated.ToString(); %>' %>
But this returned the entire literal string "<%=VaryByCustomType.IsAuthenticated.ToString(); %>" inside my global.asax is there any way to do this either on the page itself or from the codebehind? Or is this just something I have to accept is purely magic strings and nothing I can do to add type safety to it?
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May 17, 2010
I would like to use output caching with WCF Data Services and although there's nothing specifically built in to support caching, there is an OnStartProcessingRequest method that allows me to hook in and set the cacheability of the request using normal ASP.NET mechanisms.
But I am worried about the worker process getting recycled due to excessive memory consumption if large responses are cached. Is there a way to specify an upper limit for the ASP.NET output cache so that if this limit is exceeded, items in the cache will be discarded?
I've seen the caching configuration settings but I get the impression from the documentation that this is for explicit caching via the Cache object since there is a separate outputCacheSettings which has no memory-related attributes.
Here's a code snippet from Scott Hanselman's post that shows how I'm setting the cacheability of the request.
[code]....
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Feb 4, 2011
It's great to be able to output cache child actions, but how do I invalidate that cache?
I've been trying to use [Code]....
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Oct 7, 2010
I wrote a Simple Control, that implements ScriptControl. This is holder for JQuery framework:
/// <summary>
/// Generic control with client behavior handled via jQuery
/// </summary>
[code]...
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Jan 20, 2010
I create a menu control in a user contol, named as RightUserrControl.ascx.
and i kept this RightUserrControl.ascx in nearly in 200 pages.
every thing is working fine , but when ever i am going to any page the page loading is very slow, nearly each page is taking 1 minute to load.
set caching for the user control, if this is the case , do i need to declare output cache in all 200 pages or is there any alternative way to resolve this issue.
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Aug 27, 2010
I have set the output cache for 5 pages(5 minutes)
I want to clear all these pages from cache on some nutton click
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