[CLOSED] Listerners: Definition

[RomualdAwessou]

Hello,

I would like to understand the usage of the element <Listeners> in general.

It has a child <ItemClick with which one can specify either the Fn (I think for function) attribut or the handler attribut. What is the diffrence between these 2 attributs and when should I use Fn and when should I use Handler.

To specify the handler attribut we can use the following syntax

Handler = "openDocument({url: menuItem.url})"

What does this mean?

What ist the goal of openDocument?
What are the elements within the brackets?
What does menuItem.url mean?

Thanks
Romuald.

[Vladimir]

Hi,

I would like to understand the usage of the element <Listeners> in general.

Listeners are the client side events handlers (you can call own code for particular client side event of the control)

It has a child <ItemClick>

No, each component has own set of listeners therefore not each Listeners has ItemClick event

What is the diffrence between these 2 attributs and when should I use Fn and when should I use Handler.

Just Handler wrap by 'function(){/*your code from Handler*/}' therefore Handler property should contain javascript code only
Fn is rendered as is therefore it must be javascript function like Fn="myExistingJavascriptFunc" or Fn="function(){alert('');}"

To specify the handler attribut we can use the following syntax

Handler = "openDocument({url: menuItem.url})"

What does this mean?

What ist the goal of openDocument?
What are the elements within the brackets?
What does menuItem.url mean?

'openDocument' is some javascript function which defined in the page or something else. I don't know what that function do because it is your function. Where that code from?