Thread: [Dynapi-Help] Creating object references to inline layers

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It looks like I'm going to have to create my layers as inline layers and
then try to use DynAPI object wrappers around them.  That's not too bad, but
I'm most interested in using DynAPI for event handling, and I'm having
trouble creating an appropriate object reference to an inline layer.

The tutorial (section 5)describes the following usage for using DynAPI
methods on inline layers (I'm getting the X coordinate of an inline layer
named "mapLayer"):

DynAPI.document.all['mapLayer'].getX ()

and this works fine.  However, I can't figure out how to create an object
reference to this layer so I can pass it as a parameter when needed -
specifically, I need to create an event listener and

	mapListener = new EventListener (DynAPI.document.all['mapLayer']);

doesn't work.  Neither does:

	mapLayer = DynAPI.document.all['mapLayer'];

and I can't figure out why.  I'm digging through the source, but sage
pointers in the right direction would be very much appreciated.  I'm in the
general position of having to create just about all of my layers as inline
layers, but I'd then like to create DynAPI objects that wrap them so I can
treat them just as if I had created them as DynLayer objects.  Thanks again!

	- Ed

Ed McNierney
Executive Vice President and Chief Mapmaker
TopoZone.com  / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
(978) 251-4242
ed...@to...
www.topozone.com

-----Original Message-----
From: Sam Douglass [mailto:sa...@eb...]
Sent: Tuesday, November 14, 2000 6:59 PM
To: dyn...@li...
Subject: [Dynapi-Help] Another newbie ? re: setURL() in IE

Hi, sorry to post a newbie question here, but I'm trying to
load an external HTML file into a dynlayer and am having a problem
that I don't think I saw addressed in the list archives available over
the Web. I have one simple layer into which I want to load a simple 
external file:

<SCRIPT LANGUAGE="JavaScript"><!--
DynAPI.setLibraryPath('Core/lib2.0/')

DynAPI.include('core.api.*')
DynAPI.include('core.ext.loadhtml.js')

DynAPI.onLoad=function() {
  testlayer = new DynLayer(null,100,100,143,16,"#ffffff")
  testlayer.setURL("ext.html")
  DynAPI.document.addChild(testlayer)
}
//--></SCRIPT>

This works great in Netscape 4.73, but doesn't work in IE 5.0. I think I 
tracked down the error, but I'm not sure what to do about it. In the
file
"core.ext.loadhtml.js" there is a property called
"DynAPI.setURL.current"
which appears to be initialized to null (last line of the file). This is 
causing an error here on line 18, I think:

15: DynLayer.prototype.onLoad=function(e) {
16:   var lyr
17:   if (is.ie) {
18:     lyr=document.all[DynLayer.prototype.setURL.current].lyrobj
19:     lyr.elm.innerHTML=e
20:   } else if (is.dom) {

I'm getting "document.all[...].lyrobj is not an object" which seems to
fit
with using a null object as a reference into the document.all[] array.
So
the "current" propery should be a layer id tag, but which one? Or am I
way
off on what's happening here?

Anyway, if anybody read this far and knows how to make this work in 
IE, I'd be immensely grateful for any help. If this is a known bug
that's
being worked on that's not up on SourceForge yet, or if I'm doing
something
stupid like not including the right files or something, sorry about the
dumb post, but I would still appreciate a heads up. Thanks!

Sam Douglass

PS The API is awesome, and tremendously useful! Thanks to the
development
team for all the hard work they've put into it.
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