[SOLVED]ColumnTree: ensureVisible barfs

Published by: admin 2009-01-07

Has anyone got this working?

I get a variety of errors, but this one is the most troubling: (from Firebug)

Ext.fly(child, "_scrollChildIntoView") has no properties
scrollChildIntoView(undefined, undefined)ext-all-debug.js (line 2227)
ensureVisible()ext-all-debug.js (line 22856)
apply()ext-base.js (line 9)
f()ext-all-debug.js (line 22096)
expand(false, false, function())ext-all-debug.js (line 22783)
expand(false, false, function())ext-all-debug.js (line 23002)
loadComplete(false, false, function())ext-all-debug.js (line 23015)
apply()ext-base.js (line 9)
load([Node Joe Blow - HR] loaded=true loading=false childrenRendered=true, function())ext-all-debug.js (line 23639)
expand(false, false, function())ext-all-debug.js (line 22998)
f()ext-all-debug.js (line 22108)
expand(false, false, function())ext-all-debug.js (line 22788)
expand(false, false, function())ext-all-debug.js (line 23002)
expandPath("/ynode-73/Joe Blow - HR", "id", function())ext-all-debug.js (line 22110)
ensureVisible(undefined)ext-all-debug.js (line 22858)
testVis(Object myTree=[Tree ext-comp-1006])myApp.js (line 572)
buildReports(testVis(tree))myApp.js (line 433)
success(Object tId=0 status=200 statusText=OK, Object url=/tools/myApp params=Object)myApp.js (line 199)
apply(function(), undefined, [Object tId=0 status=200 statusText=OK, Object url=/tools/myApp params=Object], undefined)ext-base.js (line 9)
handleResponse(Object tId=0 status=200 statusText=OK)ext-all-debug.js (line 5206)
getViewWidth(Object conn=XMLHttpRequest tId=0, Object scope=Object argument=Object timeout=30000, undefined)ext-base.js (line 10)
getViewWidth()ext-base.js (line 10)
[Break on this error] Ext.fly(child, '_scrollChildIntoView').scrollIntoView(this, hscroll);

this was engendered by:

var node = tree.getNodeById( 'Joe Blow - HR' );
node.ensureVisible();

I've tried working around it by ensuringVisible/expanding all the parents from root down,
before the node itself, but the root+1 level barfs the same as a deeply nested node
(this is the trace above, where ynode-73 is the root id).

Any help/hint appreciated,
--dan

Do you call ensureVisible after the tree is rendered?

Do you call ensureVisible after the tree is rendered?Hey Saki,

Yes, I do, as a callback after rendering.
I've even added a 1 second defer to see if it was latency.. but it wasn't.

The tree in question is 3 levels. The expansions work (visibly, when I manually
scroll after the error), but the scroll doesn't.

The ability to expand/scroll to a certain node is kinda key to the whole
thing I'm doing. If this error/bug is too cryptic, I'd be very interested in any
workarounds you might suggest... unlike most stuff I usually code around,
this I can't let go ... ;)

Many thanks for your help, and looking forward to my V8 moment :D,
--dan

There was one scroll issue with tree a way ago and it was browser dependent. Try to search for it but I guess it has been fixed.
Anyway, post the full code so I can test it and if it's a bug in Ext to file it in the official bug list.Hey Saki,

I'm aware of the key-nav issue with column trees, if that's what you're referring to.
That isn't an issue here.

I cannot post the full code, but here's a simplified example that produces
the same error. You'll only have to edit the paths to Ext ...

The behavior seen is this: tree is rendered into container that is only
tall enough to see the un-expanded first-level children of a non-displayed root.

After 5 seconds, the ensureVisible is called and the path to the node is
expanded, but the scroll to that node is where the aforementioned error occurs.

If there's a flaw in how I'm building the nodes (omitting a required field that
supports scrollTo) or something else amiss, I'd be grateful for the heads-up.

Please let me know if I can provide anything else ...
Your help is appreciated,
--dan