Passing value to JS function

Jenni

Hi All,

Thanks in advance. I am trying to pass on a value to a function on an itemchange.

IWEventRegistry.addItemHandler("/root/UserControlArea1", "onItemChange", fun1(1));//Does not work

IWEventRegistry.addItemHandler("/root/UserControlArea1", "onItemChange", abc);
function abc()
{
fun1(1);
}//This works

Is there something I need to do in order to direclty pass on the value to a function call?

Thanks!
Jenni

Adam Stoller

Hi All, Thanks in advance. I am trying to pass on a value to a function on an itemchange. IWEventRegistry.addItemHandler("/root/UserControlArea1", "onItemChange", fun1(1));//Does not work IWEventRegistry.addItemHandler("/root/UserControlArea1", "onItemChange", abc); function abc() { fun1(1); }//This works Is there something I need to do in order to direclty pass on the value to a function call? Thanks! Jenni

What you want is not supported. Event handlers will pass the IWItem to the declared function - and that's it. Anything else needs to come through some other means.

For example - if you have one function that you want to take an additional parameter based on which item triggered it - you could do something like this:

function init() {
   ...
   IWEventRegistry.addItemHandler("/root/UserControlArea1", "onItemChange", abc);
   IWEventRegistry.addItemHandler("/root/UserControlArea2", "onItemChange", def);
   ...
}

function abc(item) { fun(item, 1); }
function def(item) { fun(item, 2); }
function fun(item, idx) {
   ...
}