Contents
How is output cache used to improve performance?
If, on the other hand, you take advantage of the output cache then you can avoid executing a database query every time any user invokes the same controller action. The view can be retrieved from the cache instead of being regenerated from the controller action. Caching enables you to avoid performing redundant work on the server.
How to enable output caching in a controller?
You enable output caching by adding an [OutputCache] attribute to either an individual controller action or an entire controller class. For example, the controller in Listing 1 exposes an action named Index (). The output of the Index () action is cached for 10 seconds. Listing 1 – Controllers\\HomeController.cs
When to use caching to avoid repeating computations?
Caching can also be used to avoid repeating computations while the application is running. If an operation transforms data or performs a complicated calculation, it can save the results of the operation in the cache. If the same calculation is required afterward, the application can simply retrieve the results from the cache.
When to use output caching in MVC application?
Caching can reduce the amount of work that both your web server and database server must perform. Don’t use the page <%@ OutputCache %> directive in an MVC view. This directive is bleeding over from the Web Forms world and should not be used in an ASP.NET MVC application.
Where does output caching in C # take place?
By default, when you use the [OutputCache] attribute, content is cached in three locations: the web server, any proxy servers, and the web browser. You can control exactly where content is cached by modifying the Location property of the [OutputCache] attribute. You can set the Location property to any one of the following values:
Where does the caching take place in a server?
Server-side caching is done by the process that provides the business services that are running remotely. The most basic type of cache is an in-memory store. It’s held in the address space of a single process and accessed directly by the code that runs in that process.
When do you need to use caching in an application?
Caching can also be used to avoid repeating computations while the application is running. If an operation transforms data or performs a complicated calculation, it can save the results of the operation in the cache.
How long can I cache the output of a controller?
If you prefer, you can specify a much longer cache duration. For example, if you want to cache the output of a controller action for one day then you can specify a cache duration of 86400 seconds (60 seconds * 60 minutes * 24 hours).
Is it OK to use the outputcache directive in MVC?
Don’t use the page <%@ OutputCache %> directive in an MVC view. This directive is bleeding over from the Web Forms world and should not be used in an ASP.NET MVC application. By default, when you use the [OutputCache] attribute, content is cached in three locations: the web server, any proxy servers, and the web browser.
What happens when you use none in output caching?
If I use “none” then it will create the same cached version of the content for every user who visits the website, and the content will only change after a specified number of seconds (here 10 seconds). Let’s use [OutputCache (Duration = 10, VaryByParam = “none”)] in the code above and look at the behavior.