What is action status in Salesforce?

A component that displays the status of an AJAX update request. An AJAX request can either be in progress or complete. actionStatus visualforce component displays the status of an AJAX update request. An AJAX request can either be in progress or complete.

actionRegion provides an area of a Visualforce page that decides and separates which components should be processed by the force.com server when an AJAX request is generated. Only the components which are inside actionregion component are processed by server, so it increases visualforce page performance.

Beside above, what is the use of action Poller? Action poller acts as a timer in visualforce page. It is used to send an AJAX request to the server depending on the time interval (time interval has to be specified or else it defaults to 60 seconds). In the action attribute a controller method gets called.

In this regard, what is the difference between action function and @remote action?

Remote Action Function: Remote Action can call the apex methods from any apex class. Remote Action allows you to call the method from javascript yourself and retrieve the result as a javascript object for manipulation. Remote Action methods have to update the DOM manually using explicit JavaScript.

What are action support action functions and action Pollers used for Salesforce?

Difference between Action Function and Action Support

apex:actionFunction apex:actionSupport
Both action function and action support can be used to call a controller method using an AJAX request Both action function and action support can be used to call a controller method using an AJAX request

What is ViewState in Salesforce?

What is viewState? ViewState holds state of the visualforce page that holds state that includes the fields, components and controller state. Viewstate data in encrypted and cannot be viewed tools like firebug. – Stores Objects that are reachable from a non-transient data member in a controller or extension.

What is Rerender in Salesforce?

ReRender : Rerender is used to refresh a particular section of the visualforce page. We have to just mention the id of the page section (in the Rerender attribute) that needs to be refreshed.

What is Ajax in Salesforce?

AJAX is the art of exchanging data between server and client without reloading the complete web page. Visualforce and AJAX. Visualforce has inbuilt support for the AJAX.

What is difference between insert and include?

As verbs the difference between include and insert is that include is to bring into a group, class, set, or total as a (new) part or member while insert is to put in between or into.

What are the Ajax functions why we use them?

AJAX stands for Asynchronous JavaScript and XML. It is used for allowing the client side of an application to communitcate with the server side of the application. Before AJAX, there was no way for the client side of a web application to communicate directly with the server. Instead, you would have to use page loads.

What is actionSupport in Salesforce?

actionSupport component adds AJAX support to other components in visualforce. It allows components to be refreshed asynchronously by calling the controller’s method when any event occurs (like click on button). It allows us to do partial page refresh asynchronously without refreshing full page.

What is remote action in Salesforce?

What is Remote Action function in Salesforce? Remote action function in salesforce allows user to access any method from any class through javasrcipt methods, and get the result as a javascript object for further manipulation. Remote action method should have @RemoteAction annotation.

What is view state size in Salesforce?

Salesforce allows Visualforce pages to have a maximum view state size of 170KB. The View State tab shows you which elements on your page are taking up that space. A smaller view state size generally means quicker load times. In order to avoid this error, minimize your pages’ view state.

What is JavaScript remoting in Salesforce?

JavaScript remoting is a tool that front-end developers can use to make an AJAX request from a Visualforce page directly to an Apex controller. JavaScript remoting allows you to run asynchronous actions by decoupling the page from the controller and to perform tasks on the page without having to reload the entire page.

What is the advantage of using custom settings?

The benefit of using custom setting instead of custom objects: Data in custom setting is available in application cache, hence efficient and fast access. No need to waste SOQL for fetching data from custom setting. There are some methods available in custom settings that we can use to get the data instead of SOQL.

What is action function in Visualforce page?

apex:actionFunction. A component that provides support for invoking controller action methods directly from JavaScript code using an AJAX request.

What are the types of Ajax functions in VF page and what is the usage?

What are the different AJAX action tags in vf page? apex:actionFunction- Provides support for invoking controller action methods directly from JavaScript code using an AJAX request. apex:actionPoller. A timer that sends an AJAX update request to the server according to a time interval that you specify. apex:actionRegion. apex:actionStatus. apex:actionSupport.