topic Re: QueryTask error in IE9 when loading more than 900 features (IE8, FF and Chrome wo in ArcGIS JavaScript Maps SDK Questions

QueryTask error in IE9 when loading more than 900 features (IE8, FF and Chrome works)

BerndSchneiders — Mon, 17 Sep 2012 14:03:37 GMT

Hi,

I have a really simple JS mapping application which is just displaying features on a GraphicsLayer.

I`m using QueryTask to load the features.

If I running it on FF 14 and Chrome 21 its displaying about 8000 features without any problem. (Ok, if I have more that 2000 its getting slower).
IE8 can also handle this number of features. But its getting very slow.

When I use IE9, the browser can display about 900 features. But if I want to display more than 2000 features IE9 ends in "SCRIPT14: error -2147024882".
This error occurs just before QueryTask calls the onComplete function.

Is there any limitation for IE9?

Cheers,
Bernd

Re: QueryTask error in IE9 when loading more than 900 features (IE8, FF and Chrome wo

JohnGravois — Mon, 17 Sep 2012 14:43:07 GMT

it is a known issue that performance degrades when a large number of features are downloaded to the client in IE. please see the following thread for more information.

http://forums.arcgis.com/threads/65441-IE-Problems?highlight=slow

Re: QueryTask error in IE9 when loading more than 900 features (IE8, FF and Chrome wo

BerndSchneiders — Tue, 18 Sep 2012 06:17:27 GMT

Thank you for the link.

But it does not answer the question for the error. In IE9 my client can´t display 2000 features at all. IE8 does.

Is it an issue with IE9? Anyone else had the same problems?

Cheers,
Bernd

Re: QueryTask error in IE9 when loading more than 900 features (IE8, FF and Chrome wo

__Rich_ — Tue, 18 Sep 2012 07:10:37 GMT

As you probably already know, that's an out of memory exception.

I seem to remember that IE9 on Win7 has a lower limit than IE8 (on XP?)...but I may have dreamt that. (out of interest, are you running 32-bit or 64-bit?)

Either way, that's a lot of features to render/maintain etc. client-side.

Do you really need a graphics layer or could this be done using a server-side renderer? If the former, are you sure all of your users will have sufficient computing resources to use your app?

Re: QueryTask error in IE9 when loading more than 900 features (IE8, FF and Chrome wo

PramodHarithsa1 — Tue, 18 Sep 2012 07:40:06 GMT

will changing
Maximum Number of Records Returned by Server: parameter in server help?

Re: QueryTask error in IE9 when loading more than 900 features (IE8, FF and Chrome wo

BerndSchneiders — Tue, 18 Sep 2012 08:20:05 GMT

Thank you the out of memory hint.
So I guess this is the problem.
I'm running both IE8 and IE9 as 32-bit on Win7.

I'm already using client-side bitmap rendering (heatmap) for displaying the data, which is really fast. Its just for knowing where the limitation are, so we can tell this our customers before.

cheers,
Bernd