State Management :: Use An Object From The Cache In A Mvc View?
Sep 24, 2010
I am working with asp.net mvc and i am trying to get acces to a object that is in the cache.In the Application_Start() of Global.asax.cs i create and store an object in the cache like this:
Translator translator = new Translator();
HttpContext.Current.Cache.Insert("Translator", translator, null, System.Web.Caching.Cache.NoAbsoluteExpiration, System.Web.Caching.Cache.NoSlidingExpiration);
Translator holds a dictionary with translations.Now i want acces to this object from the cache to use functions and get values from the dictionary.I know i can acces it like this HttpContext.Current.Cache.Get("Translator") or Cache.Get("Translator") in the views But how can i use the functions of the object ? The meaning of the cache is to have a object that is accesable througout the webapp right ?
Do i have to make an object and asses the value of the Cache.Get("Translator") to it, so i can use the functions or is there another solution?
View 3 Replies
Similar Messages:
Jul 26, 2010
i have simple form which consists of 2 labels and 2 buttons, the first label will display the current time and second label will display the cached time for 2 mins which is absolute..
no w when i click on first button only current time have to get update,, and when i click on second button both current time cached time have to be updated even though the cached time of 2 mins not elapsed also.
View 4 Replies
Aug 7, 2010
This source what i have used to create cache object.Also i have checked if "AppCache_Caption" cache object is available or not.
[Code]....
Right now i have checked and created my login page page_load event.It will create cache object every time me access the login page.What are the conditions wrong my source?My expectation, cache object creates only one time.It will not create everytime.
View 4 Replies
Aug 22, 2010
I need to cache System.Collection.Generic.List object with expiration time
var Root = from feed in feedhotel.Descendants(ota + "HotelContent")
where (feed.Attribute("HotelCode") != null)
select new xmlhotel()
{
};
return Root.ToList();
Is it possible to cache Root.ToList() for some time....
View 1 Replies
Nov 19, 2010
I want to add a list to the cache and I would like it to stay there as long as posible.
Is there a way adding something to the cache permanently?
how do i set the exiry date of a cached object?
View 6 Replies
Mar 12, 2011
Is it possible to cache a hole site?ll its pages, images, js, db data etc...If so is it go/bad idea?
View 2 Replies
Aug 11, 2010
I have some weird problem. We're using Windows Server 2008 R2 x64 (8 Cores and
8 GB RAM) with IIS 7.5 and ASP.NET MVC 2.
I always cache (simple) stuff via the context cache and it seems like 9 out of 10 immediate page refreshs the Cache["MyKey"] is always null, even though there's no memory limit set on the pool and the server has lots of free memory.
I add expiring data via:
[Code]....
When just doing: Cache.Insert("MyKey", myObject); or Cache["MyKey"] = myObject; I get the same result (cache is almost always null for that key).
As you can see I added a callback, which writes the CacheItemRemovedReason to a text file, and the text file says CacheItemRemovedReason.Removed for MyKey. The doc for CacheItemRemovedReason.Removed says, that I call Remove/Insert on it, even though in my whole project there's no "Remove"-calls, just simple if(Cache["MyKey"] == null) {Cache["MyKey"] = ...} stuff.
I tried adding:
<caching><cache disableMemoryCollection = "true" disableExpiration = "true" privateBytesLimit="0" percentagePhysicalMemoryUsedLimit="90" privateBytesPollTime="00:02:00" /></caching>
to my web.config file in the System.Web-section but nothing changed :(
why Cache["MyKey"] is almost always null?
View 3 Replies
Jul 6, 2010
I have a treeview that shown groups and their sub groups in my usercontrol. I pass the parent GroupId to the usercpntrol from the page. I want to cache nodes of treeview for every Parent Group Id. My code is works good for first time and fill the cache object . after refresh the page, cache object fill the TreeNodeCollection succesfully and everything is ok. But after another refresh, cache object is not null but is empty and TreeNodeCollection.count is zero(0). What's my fault? Please help me to solve this problem.
[Code]....
View 5 Replies
Apr 5, 2010
I am looking for an elegant (i guess as elegant as it can be) solution to caching a users profile on login (whether it is session, cache, cookie, etc) and keeping it in sync when a users profile is changed. How do you guys handle this? Just simply call a Flush() method in your Save() method that invalidates the cache?
View 1 Replies
Jul 30, 2010
Is it possible to share a cache between multiple ASP.NET applications? The apps may reside on different servers. How can one achieve this requirement?
View 1 Replies
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.
View 3 Replies
Sep 24, 2010
I know the big difference, but one thing is confusing me. Cache works only on a single machine on webfarm and to make it globally we use Velocity or memcache.So is static does same, or is it already work globally ?
eg
Cache["someid"] = "value"; //this will only work on single machine cache,
static string abc = "value"; // will this work on single machine or globally ?
View 6 Replies
Dec 12, 2010
Is it suitable to store some app settings in Application Cache? I mean settings that might need to be changed frequently...
View 1 Replies
Apr 2, 2010
I have a senario where i want to add the data into cache but only 100 records should be added.
Is their any predefined functions available.
Basically i dont want to write if else condition whiile adding the records wether its 100 records present or not.
View 1 Replies
May 9, 2010
I have a page that has a grid view.
The user selects a person from a dropdown list and then clicks a button that adds the users info as
a new row in the grid.
Adding the new row involves doing an insert and rebinding the grid which is a slow process.
How do I use the cache to see the grid update right away?
View 5 Replies
Oct 6, 2010
I wanted to know the best practice for caching data. Say I have some control example a dropdown list which is populated from my db. Now this dropdown is global and used across many pages. I was thinking of not going to database everytime to fetch data for this dropdown and put the result in Cache. And then populate this dropdown from cache. Is this a good practice or if there is another approach. Can I store my datareader in cache and then use it globally. Also could I do this in application start event?
View 4 Replies
Dec 21, 2010
asp.net.2 I am trying to update the website but the cache kips on working. How can I relies the cache on site.
View 7 Replies
Dec 9, 2010
I am Caching dataset in my application, the issue is when there is a large set of data the OutOfMemory exception is thrown.
I want to check for the this exception and when it happens I want to remove the cache object.
View 4 Replies
Nov 26, 2010
I have added a list to the cache with an expiry date, however the expiry date doesnt work, im not sure how long the cached item lasts but its no more than a day.
[Code]....
View 5 Replies
Jul 7, 2010
I have an asp.net solution in which there are two web application projects (client website and admin website) and also a class liabrary project in the same solution . In the live production server, the admin web app is within the client app (eg: client site= [URL] and admin site=[URL]). A class (with static variables) in class liabrary is userd to cache data. My problem is that i cannot get the changes to the static cache by one web project reflected to the other (becoz, i think, they seem to load in seperate appdomains).
View 3 Replies
Nov 25, 2010
I am using this to store my user information for authentication. I'd like to know where this is actually being stored? I know that people suggest to store the Session state in SQL. Is this necessary for the Cache as well?
View 4 Replies
Nov 29, 2010
I am writing a web page that returns a small volume of data from a database table. The database is polled every 1 second and the data will be the same for every user. As every user is accessing the same data, there is no need for each user to poll the database and use up db resource.
Therefore, I think I should be using application caching to store the data in a dataset. However, I am slightly stumped as to how to do this.... because how can i ensure that the dataset is kept up to date.
The only way I can think to do this is to have a master user/session (i.e. the first session in the application) that keeps the cache object updated every second, then other users can use that cache object. If the first session ends, then the next requestor of the cache will pick up responsibility for keeping the dataset up to date.
View 4 Replies
Aug 27, 2010
i got a function that first insert cache object in dataset and then check if its empty then query the database otherwise just get record from the dataset of cache object. Now the problem is, the condition If DSEktronID Is Nothing Then ' always return false even when i run the application first time?
[Code]....
View 4 Replies
Jun 10, 2010
Can I cache an function individually for each person? Is it possible?
View 4 Replies
Aug 11, 2010
I am using this tag to hepl with my database calls <meta http-equiv="cache-control" content="no-cache" /> however I would like to override this meta tag for one large image using asp.net.
View 1 Replies
