The VaryByParam is a semicolon-delimited set of parameters used to vary the cached output. It allows varying the cached output by GET query string or form POST parameters. For instance, you can vary the user-control output to the cache by specifying the user-control name along with either a query string or a form POST parameter.
Full Answer
What does varybyparam mean in Java?
So, in simple words, we can say that VaryByParam means based on the input parameter, it will store different versions of the view in the cache. The Location property of OutputCache Attribute is used to specify the location where the output is cached. The Location property takes the values from OutputCacheLocation enum.
How to implement different cache versions of the output in MVC?
If you want to implement different cache versions of the output based on some input parameters then you need to use the VarByParam option of the OutputCache attribute in the ASP.NET MVC Application. For example, we have a detailed action method which will display the employee details based on the employee id.
What is varybyparam in Salesforce?
When different values of the Id parameter are passed to the controller action, different cached versions of the Details view are generated. So, in simple words, we can say that VaryByParam means based on the input parameter, it will store different versions of the view in the cache.
What is the default value of outputcache attribute?
As per your business requirement and security, you can cache the data in the appropriate location as follows: Any: This is the default value for Location Property. If we have not specified the Location Property in OutputCache Attribute then the value is going to be Any.
What is VaryByParam?
The VaryByParam is a semicolon-delimited set of parameters used to vary the cached output. It allows varying the cached output by GET query string or form POST parameters.
What is OutputCache in action filter?
In ASP.NET MVC, there is an OutputCache filter attribute that you can apply and this is the same concept as output caching in web forms. The output cache enables you to cache the content returned by a controller action. Output caching basically allows you to store the output of a particular controller in the memory.
What is OutputCache?
The output cache enables you to cache the content returned by a controller action. That way, the same content does not need to be generated each and every time the same controller action is invoked. Imagine, for example, that your ASP.NET MVC application displays a list of database records in a view named Index.
What is the use of VaryByParam attribute in OutputCache directive?
ANSWER: The VaryByParam attribute determines which versions of the page output are actually cached.
What is the purpose of ViewBag property?
The Microsoft Developer Network writes that the ViewBag property allows you to share values dynamically to the view from the controller. As such, it is considered a dynamic object without pre-set properties.
What is Actionfilter?
An action filter is an attribute that you can apply to a controller action -- or an entire controller -- that modifies the way in which the action is executed.
What cached data?
Cached data helps apps load faster by keeping temporary files such as thumbnails, scripts, and video snippets on your phone instead of loading them from the web each time. But cached data can quickly fill up your phone's storage.
How do I clear my output cache?
If you want to clear output cache programatically then you can use following code:// Get the url for the action method:var staleItem = Url. Action("Action", "YourController", new.{Id = model.Id,area = "areaname";});// Remove the item from cache.Response. RemoveOutputCacheItem(staleItem);
What is ASP.NET cache how do you use it?
To manually cache application data, you can use the MemoryCache class in ASP.NET. ASP.NET also supports output caching, which stores the generated output of pages, controls, and HTTP responses in memory. You can configure output caching declaratively in an ASP.NET Web page or by using settings in the Web. config file.
What are the 2 required attributes of the @OutputCache directive?
Here, in that statement Duration and VarByParam are the two attributes of the OutputCache directive.
Definition
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Remarks
When this property is set to multiple parameters, the output cache contains a different version of the requested document for each specified parameter. Possible values include "none", "*", and any valid query string or POST parameter name.
What is output cache in MVC?
Output Caching enables us to cache the content returned by any controller method so that the same content does not need to be generated each time the same controller method is invoked.
Why use output cache?
It enables us to cache the content returned by any controller method so that the same content does not need to be generated each time the same controller method is invoked. Output Caching has huge advantages, such as it reduces server round trips, reduces database server round trips, reduces network traffic etc.
Is Fiddler cacheable?
Fiddler is a great tool if you want to check whether a requested web page is cache-able or not, here is a GIF image of it. In the above GIF you can see the GET request is not cacheable whereas the POST request is cacheable and with max-age: 10 seconds.
