Variables in Fragments

[Former Community Member]

Hi There,

Is it possible to make use of the form variables in Fragments?

i.e. - Lets say I have a fragment and create a variable within the fragment xdp (in Designer:  File > Form Properties > Variables) is it possible to access the fragment variable in script??

function ufSetVar()
{
   testVar.value ="test1";
   xfa.host.messageBox(testVar.value);
}

I am trying in a script within the fragment, and it only gives me an error: e.g, testVar is not defined

I guess I could use a hidden text field in the fragment to store my variable, but it would be nicer to use the Variable method if possible...

Thanks

[Former Community Member · Accepted solution]

The scope of a variable defined in script is for the duration of the script. The concept of a global var is contained within the Form Properties/variables but that is not carried through for a fragment. You might be able to create a variable in a scripting fragment (I know the functions end up being global) and have that as a global but I have not tried that. I think the hidden field might be your best bet.

I also found this blog by John Brinkman (one of the creators of XFA) that you might find useful. This particulr entry discusses custom properties on objects ...you coudl use  that to pass your information between fragment and main code. I tried it and I was able to access the customer property from the main when set in the frag.

http://blogs.adobe.com/formfeed/2009/02/scope_of_javascript_objects.html

Paul

[Former Community Member]

Thanks Paul,

Yes, this post (linked from that page) contains instructions to do exactly that:

http://blogs.adobe.com/formfeed/2008/10/form_variables.html

This is what I changed my function to, and it worked!

function ufSetVar()
{

    if (TextField1.desc.nodes.namedItem("vFortyTwo") == null)
    {
        var vNewVariable = xfa.form.createNode("text", "vFortyTwo");
        vNewVariable.value = "abc";
        TextField1.desc.nodes.append(vNewVariable);
    }
   
   xfa.host.messageBox("val:" + TextField1.desc.nodes.namedItem("vFortyTwo").value);
}