An area of a Visualforce page that demarcates which components should be processed by the Force.com server when an AJAX request is generated. Only the components in the body of the <apex:actionRegion> are processed by the server, thereby increasing the performance of the page.

What is Apex Action region?

An area of a Visualforce page that demarcates which components should be processed by the Force.com server when an AJAX request is generated. Only the components in the body of the <apex:actionRegion> are processed by the server, thereby increasing the performance of the page.

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. Use this component to get user input for a controller method that does not correspond to a field on an sObject.

What is action support in Salesforce?

A component that adds AJAX support to another component, allowing the component to be refreshed asynchronously by the server when a particular event occurs, such as a button click or mouseover.

What are action methods in Salesforce?

Action methods perform logic or navigation when a page event occurs, such as when a user clicks a button, or hovers over an area of the page. Action methods can be called from page markup by using {! }

What is apex region in Salesforce?

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.

How do I use commandLink in Visualforce page?

  1. A link that executes an action defined by a controller, and then either refreshes the current page, or navigates to a different page based on the PageReference variable that is returned by the action. …
  2. To add request parameters to an <apex:commandLink> , use nested <apex:param> components.

What is the difference between action function and @remote action?

thanq. Action function used to call the server side method using JavaScript. Used when we need to perform the similar action on various events. Een though you can use it in place of actionSupport as well where the only event is related to only one control.

How do you pass parameters in action function?

We can pass parameters to controller method that is being called using action function. For this we can use attribute “param” in visualforce.

What is Apex Param?

<apex:param> tag is used to pass values from JavaScript to an Apex controller,it can only be used with the folloing parent tags.

What is difference between rendered Rerender and Renderas in Salesforce?

Render: – Is used to show/hide the particular block, output panel or input/output fields based on the condition. Example: – You have 2 fields one is visible and second is hidden, you want the second field to be visible when the first field is filled then use render.

What is the order of execution in Salesforce?

What is Order of Execution in Salesforce? A set of rules that describe the path a record takes through all automations and the events that happen from SAVE to COMMIT. Before Salesforce executes these events on the server, the browser runs JavaScript validation if the record contains any dependent picklist fields.

What is difference between with sharing and without sharing in Salesforce?

With Sharing – Enforce the sharing rules that apply to current user. Without Sharing – Doesn’t enforce the sharing rules. If a class is not declared as either with or without sharing, the current sharing rules remain in effect.

Why do we use action function?

ActionFunction is a component, which provides support for invoking controller action methods directly from JavaScript code with the use of AJAX request.

What is difference between controller and extension in Salesforce?

Use custom controllers when you want your Visualforce page to run entirely in system mode, which does not enforce the permissions and field-level security of the current user. A controller extension is an Apex class that extends the functionality of a standard or custom controller.

What are governing limits in Salesforce?

OverviewGovernor Limit
Total number of SOSL queries issued in Salesforce20
DML Governor Limits in Salesforce (Total number of issued statements per transaction)150
Total number of records retrieved by a single SOSL query2000
Total number of records that were retrieved by SOQL queries50000