FormAPI - passing additional parameters to event handler functions

Hi,
Is there any easy way of passing extra parameters to the function executed by a FormAPI event handler?

I've got a pair of radio buttons that let the user select if an image should be included or not. If it's not then the image container will be hidden, if it is then the container is shown.

All simple enough but I'm trying to write the function as openly as possible and am trying to avoid being prescriptive about the radio button values. Normally I'd do this by passing two values to the function, one the status the item has been changed to (selected radio button value) and the other the trigger value to hide the fields on. From here it's a simple if A == B hide C, else show C and it doesn't matter if the hide radio button value is '0', 'f', 'hide', etc (provided this value is passed to the script as the trigger value.

Anyway, event handlers just take the name of the function to execute and handle passing the item object. Is there any way to pass an additional parameter?

Cheers,

Mark

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ISCBorisB

Hi,
Is there any easy way of passing extra parameters to the function executed by a FormAPI event handler?

I've got a pair of radio buttons that let the user select if an image should be included or not. If it's not then the image container will be hidden, if it is then the container is shown.

All simple enough but I'm trying to write the function as openly as possible and am trying to avoid being prescriptive about the radio button values. Normally I'd do this by passing two values to the function, one the status the item has been changed to (selected radio button value) and the other the trigger value to hide the fields on. From here it's a simple if A == B hide C, else show C and it doesn't matter if the hide radio button value is '0', 'f', 'hide', etc (provided this value is passed to the script as the trigger value.

Anyway, event handlers just take the name of the function to execute and handle passing the item object. Is there any way to pass an additional parameter?

Cheers,

Mark

No, not OOTB.

GriffTheDog

There could be, but I don't think so.

Another solution could be to do:

 

var itemType = IWItem.getType();

if (itemType == 'select') {
 var triggerValue = 'true';
} else if (itemType == 'radio') {
 var triggerValue = 1;
} else if ... {
}

if (triggerValue == IWItem.getValue()){
 hide;
} else {
 visible;
}

rpt1_pruefauftrag_2_6_1.rptdesign

mstradling

Thanks, ended up using a wrapper function. Event calls function passing IWItem that contains an associative array of item XPaths/trigger indexes and calls (an included) hide function passing IWItem and corresponding trigger.

Not perfect, but it will work and at least part of it is componentised out for reuse.

JonathonG

You might want to take a look at this, something jbonifaci and I presented at this year's GearUp.