How do I use JavaScript remoting in salesforce?

How do I use JavaScript remoting in salesforce?

JavaScript Remoting for Apex Controllers

1. The remote method invocation you add to the Visualforce page, written in JavaScript.
2. The remote method definition in your Apex controller class.
3. The response handler callback function you add to or include in your Visualforce page, written in JavaScript.

What is the use of @RemoteAction annotation?

The RemoteAction annotation provides support for Apex methods used in Visualforce to be called via JavaScript. This process is often referred to as JavaScript remoting.

What to do when VF page popup button clicked?

After popup close the caller window is reloaded. it can be also used with Visualforce button. ForceWindowClose page is used to force closing popup window. It is called after succesfull save or cancel. In case that you will use standard controller save () and close () it is required to have “&retURL=/apex/ForceWindowClose'” in button code.

How to call controller method passing a parameter from VF page?

Once i click of any of them, need to call the controller method with parameter as the alphabet i clicked. Say, i am click on “A”. So, need to call the method with param “A” from VF page. How to accomplish this?? Please help..

How to auto call function in Visualforce page without JavaScript?

One solution consist to make a button on the visualForce page that call the specific method when its clicked, but its not what I want. I wish to know if there is any way to ‘auto-call’ a method in ComponentController class, without using JavaScript (just VisualForce or apex)

How to call JS function on click of button?

To call JS function named CaptureSignature () on click of the button, use apex:commandButton with onclick attribute set to CaptureSignature ();: To call both, the controller method as well as the JS function, use apex:commandButton with both action and onclick attributes set: