OutputCache - Cache Only If No Params In GET?
Jan 23, 2011What parameters to use in OutputCache if you want to Cache in case of no params on a page, in other cases not caching?
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Similar Messages:
Outputcache - Is It Possible To Output Cache By Host Name
May 11, 2010I'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?
Web Forms :: Cache "OutputCache" - Exclude The "login/register" Control From The Cache?
Nov 10, 2010I'm using the OutputCache for my pages, and I have a dynamic user control (login/register) . When the user try to sign in, the the control do not change the aspect because I´m using OutputCache. How can I exclude the "login/register" control from the cache?
View 6 RepliesMVC :: Route To Controller Params?
Apr 1, 2010with a catch all route, how would you get the url into the params of the controller action?
[Code]....
C# - .NET: Preserving Some, But Not All Query Params During Redirect?
May 17, 2010 if the code below would achieve what I want, which is: Check if the query parameters 'return_path' and/or 'user_state' are present in the query string, and if so append them to the query string of the redirect URI. As I'm not a .NET dev and don't have a server to test this on, I was hoping someone could give me some feedback.
ArrayList vars = new ArrayList();
vars.Add("return_path");
vars.Add("user_state");[code].....
Ajax Request : Application/x-www-form-urlencoded Params?
Jan 19, 2010While adding the parameters to get/post request they need to be encoded in application/x-www-form-urlencoded form. So do we need to encode values each time ? Does JavaScript have any method for that ? What are the possible caches ?On server side when we read the values we do not decode them we directly say Request.Params["key"] and that returns value. Does that mean that they are automatically taken care when we read the values?
View 2 RepliesSetting Optimum Http Caching Headers And Server Params In .Net MVC And IIS 7.5?
Sep 13, 2010I have an ASP.Net site (happens to be MVC, but that's not relevant here) with a few pages I'd like cached really well.
Specifically I'd like to achieve:
output cached on the server for 2 hours.if the file content on the server changes, that output cache should be flushed for that page
cached in the browser for 10 minutes (i.e. don't even ask the server if it's that fresh)when the browser does make an actual subsequent request, I'd like it to use etags, so that the server can return a 304 if not modified.
(note - time values above are indicative examples only)
1) and 2) I can achieve by Response.Cache.SetCacheability(HttpCacheability.Server)
I know 3) can be achieved by using max-age and cache-control:private
I can emit etags with Response.Cache.SetETagFromFileDependencies();
but I can't seem to get all of these things to work together. Here's what I have:
Response.Cache.SetCacheability(HttpCacheability.ServerAndPrivate);
Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
Response.Cache.SetETagFromFileDependencies();
Response.Cache.SetValidUntilExpires(true);
Response.Cache.SetMaxAge(TimeSpan.FromSeconds(60 * 10));
In particular:
can browsers do both 3) and 4) like that? When Firefox issues a new request after it expires in the local cache, it does indeed send the etag the server responded with before, but I get a 200 response.setting the variables like above, where would I set the duration of the output caching?
MVC :: RedirectToAction Params And Breakpoints / Value Of 'projectID_DDL' Is Null When The Redirect Occurs?
Jul 12, 2010I have an ActionResult method that loads a user-selected project. When the user makes a selection from a select html element, the id is passed in and loads the project. This works fine. The user can also submit the form, which saves certain information and then calls a RedirectToAction that passes the project id back into the load method. This is where the problem occurs. Here's the relevant code:
[Code]....
The problem is that the value of 'projectID_DDL' is null when the redirect occurs. I'm aware that during a form post that variable is automatically mapped to the name of the html element, so my first question is if that precludes referring to the parameter name as anything else, even in code. In regular methods, it doesn't matter what you call the variable, provided it's the correct type for the parameter it corresponds to, but ActionResult methods might differ. My second question is about break points. In order to test that the value of 'projectID_DDL' is what I passed in, I set a break point. It was never hit. I even tried adding a line before the return View statement, thinking perhaps that the return View statement threw the exception, and so its breakpoint wasn't being hit. This didn't work, either.
Javascript Calls To An Ajax WebMethod. How To Get Multiple Output Params Returned
Apr 24, 2010 I know how to call a simple old fashion asmx webservice webthod that returns a single value as a function return result. But what if I want to return multiple output params? My current approach is to separate the params by a dividing character and parse them on teh client. Is there a better way.
Here's how I return a single function result. How do I return multiple output values?
<asp:ScriptManager ID="ScriptManager1" runat="server">
<Services>
<asp:ServiceReference Path="WebService.asmx" />
[code]....
C# - Implement System.Web.Caching.Cache Object In A Controller To Cache Specific Query?
Mar 29, 2010Is it correct to implement my caching object like this in my controller :
[code]....
And I Use it like this :
[code]....
Architecture :: Cache The Full List Of Objects In Http Cache On The Service Tier And Page In Memory?
Feb 25, 2011We have a wfc layer that wraps the business classes and database access and use a client that lives on the database layer. Amongst our group we are attempting to form standards. Some want to have the client call the web method and pass the page they are requesting and the page size. Pass that to the database and then page in SQL Server use RowNum.Some want to cache the full list of objects in http cache on the service tier and page in memory. They concern here is memory use on the server.
Which would be best for a medium number of users with potentially large number of records to manage (say 30K) Is it better to cache them all in memory and work from there or page at the database as the application scales?
New-Cache Parameters For AppFabric Cache When Storing.NET Session State
Jul 28, 2010What are the "optimal" parameters for creating an AppFabric cache when you will be storing session state in the cache? MSDN Cache-Related Commands
Powershell command line:
New-Cache [-CacheName] <String> [-Eviction <String>] [-Expirable <String>] [-Force [<SwitchParameter>]] [-NotificationsEnabled <String>] [-Secondaries <Int32>] [-TimeToLive <Int64>]
[code]...
Since I don't want my sessions to be removed unless the session has been abandoned either via code or Session Timeout...For eviction, I would think "None" and for expireable, I would think False.I have tested and calling Session.Abandon does remove the object from the cache. I have also tested to see if by extending my session, the session object in cache is also extended. This does seem to work the "correct" way.
Data Cache Support Background Population Of Cache Entries?
Aug 1, 2010We have a data driven ASP.NET website which has been written using the standard pattern for data caching (adapted here from MSDN):
public DataTable GetData()
{
string key = "DataTable";
object item = Cache[key] as DataTable;
[code]...
The trouble with this is that the call to GetDataFromSQL() is expensive and the use of the site is fairly high. So every five minutes, when the cache drops, the site becomes very 'sticky' while a lot of requests are waiting for the new data to be retrieved.
What we really want to happen is for the old data to remain current while new data is periodically reloaded in the background. (The fact that someone might therefore see data that is six minutes old isn't a big issue - the data isn't that time sensitive). This is something that I can write myself, but it would be useful to know if any alternative caching engines (I know names like Velocity, memcache) support this kind of scenario. Or am I missing some obvious trick with the standard ASP.NET data cache?
C# - Maximum Length Of Cache Keys In HttpRuntime.Cache Object?
Feb 24, 2010We are using HttpRuntime.Cache API in an ASP.NET to cache data retrieved from a database.
For this particular application, our database queries feature a LOT of parameters, so our cache keys look something like this:
table=table1;param1=somevalue1;param2=somevalue2;param3=somevalue3;param4=somevalue4;param5=somevalue5;param6=somevalue6... etc...
we have so many parameters that the cache key is several hundred characters long. is there a limit to the length of these cache keys? Internally, it is using a dictionary, so theoretically the lookup time should be constant. However, I wonder if we have potential to run into some performance/memory problem.
ADO.NET :: Use HttpContext.Current.Cache (system.web) For Cache Data Something In Project
Sep 13, 2010I have use Nhibernate in my MVC Project by me known, Nhibernate have cache on Session and Object. now, I want use HttpContext.Current.Cache (system.web) for cache data something in project. my code same that have problem, haven't it. and that's right or wrong.
View 2 RepliesArchitecture :: Distributed Caching / Keeping Cache In Sync Between Multiple Webservers Or Even Better Farm Cache Management To Another Server?
Feb 26, 2010I've got a web application that runs of a state server. It looks like soon it may need to distributed and there will be two web servers behind a load balancer.
This works great for session state but my next challenge is Cache
My application leverages heavily of cache. I understand ASP.Net 4.0 will be offering more here but nothing much has been said about the how too.
There are two challenges that I face
1). Each webserver will have its own copy of cache whereas it would be more efficient to put this to a third server the same as session state is put to state server.
2). The real challenge is keeping cache in sync if a simple dataset derived from the database is changed my code dumps that cache item and reloads the cache. That's all well on one webserver but webserver number two wont know to drop that particular cache item and reload it. This could cause some unexpected problems in the application.
For scenario number 2 I could attempt to do some smart coding so server number two knows to dump the cache and reload it.
My guess is someone else has already been here before and there's probably a better implementation approach rather than writing extra code.
Does anyone know how I could achieve the goal of keeping Cache in sync between multiple webservers or even better farm Cache management to another server?
Is Page Output Cache Stored In.NET Cache Object?
Nov 2, 2010I 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?
View 2 RepliesC# - Application_End() Cannot Access Cache Through HttpContext.Current.Cache
Dec 12, 2010I want to be able to maintain certain objects between application restarts.
To do that, I want to write specific cached items out to disk in Global.asax Application_End() function and re-load them back on Application_Start().
I currently have a cache helper class, which uses the following method to return the cached value:
return HttpContext.Current.Cache[key];
Problem: during Application_End(), HttpContext.Current is null since there is no web request (it's an automated cleanup procedure) - therefore, I cannot access .Cache[] to retrieve any of the items to save to disk.
Question: how can I access the cache items during Application_End()?
Web Forms :: What Is The Use Of OutputCache
Oct 5, 2010<%@ OutputCache Location="None" VaryByParam="None" %>
Because when am using this line in http then the attachment is opening fine but not for https.But after removing this line then https is working fine.
C# - Using Outputcache Together With Urlrewriting
Mar 31, 2011I've got a problem using outputcache together with urlrewriting. We've got an application that rewrites url (IE [URL]). Based on the URL (/about/) we figure out which content to show. Now we're trying to add outputcache to that page:
< %@ outputcache duration="600" location="Server" varybyparam="Custom" varybycustom="RawURL" %>
And in the Global.asax we override GetVaryByCustomString like below:
public override string GetVaryByCustomString(HttpContext context, string custom)
{
if (custom == "RawUrl")
{
return context.Request.RawUrl;
}
else
{
return string.Empty;
}
}
However, when we publish the page i'd like to invalidate the cache so that the editors see the change directly. But no matter what I try, I cannot seem to invalidate the cache. If I'd like to invalidate "/about/" I would like to do this: HttpResponse.RemoveOutputCacheItem("/about/"); That doesn't work unfortunately. The only thing that seems to work is: HttpResponse.RemoveOutputCacheItem("/page.aspx");
This clears the cache for all my pages, not just "/about/". Is there any way to invalidate the cache based on the url? Or should we provide a cache key or something per page to be able to invalidate the cache programmatically?
MVC :: OutputCache / RenderAction And SEO?
Jan 29, 2010I read many posts about outputcaching element in asp .net MVC, but i have one question.My architecture is :1 master page, 1 page (especially news information), and a few other controls like LogOnUser / Fixed status bar etc...I want to have my news cached cause there are three query to entities, but i need too the title for SEO of my master page (title is included in a contentplaceholder in master).I tried to use renderaction outputcache but it is not possible to retrieve the title from the renderaction. Have you any idea about this problem ?Maybe it's preferable to use a general outputcache and use a substitute from dynamic data, but i don't know if it's a best practice or not.
View 1 RepliesHow To Invalidate The OutputCache In A Webform
May 3, 2010i've got a website that uses OutputCache attribute to cache pages. Works great.
Now, I'm in the middle of R&D'ing scaling up this site to be in a web farm. Along with the usual suspects for webfarm pain ... I've noticed (pretty quickly/obviously) that the OutputCache from Server_A doesn't invalidate the OutputCache from Server_B .. if a try and invalidate a single server's OutputCache. This makes total sense -> how can S_A 'tell' S_B to invalidate when they are physically 2 seperate machines, etc?
So - what are our options?
Velocity? I understand this will move the caching to a different layer .. which means that the final result (output) will always be required to be determined .. as opposed to the OutputCache whic remembers the final output content (yes, varby gives different versions, etc.. which is totally fine). So even though the poco or business objects are all sync'd, there's still that last rendering effort required (even if it's tiny .. compared to the effort to generate/sync business objects).
Web Forms :: Set OutputCache Dynamicllly?
Feb 15, 2011i have CMS that dynamically add user control to page. now i wanna use OutputCache for user control and set it from server side code. how i can do that?
View 1 RepliesMVC :: OutputCache Varyby IsAjaxRequest?
Jan 11, 2010I've an action in a controller that returns different content if the request is Ajax or not:
[Code]....
So, from the view I can fill a <div> with the PartialView (RenderPartial), calling the same action (allowing javascript disabled clients). The problem is the cache, because when the request has cached as a normal request, if later sends the request as an Ajax request, the view is rendered very bad.
The question is: Is there any way to use OutputCache to allow to cache in different entries this two types of requests (Ajax and not Ajax).
AJAX :: ModalPopupExtender With OutputCache
Mar 1, 2011I have a user control with OutputCache set to vary by any param (*). This user control has a LinkButton, which when clicked, causes a postback, and displays a ModalPopupExtender (the extender's TargetControlID is a dummy link). The user control is included on an aspx page.
The LinkButton is displaying the popup just fine. But if I open another browser tab/window/type, the LinkButton fails to generate the popup. I've tried (all separately):
moving the popup extender and its associated control to the main aspx page use OutputCache Location="None" on main page dynamically create the Popup extender and its associated control in Page_Init of both ascx and aspx