Popup panel doesn't autohide in IE7.

2011-08-03 Thread leela c 
Hi,

I'm using GWT 2.2.0.

I display a popup panel on click of a label. It is not hiding if I
click outside the label in IE7. It works fine in IE8, Firefox and
Google chrome.

Code:
 HTMLPanel container = new HTMLPanel();
 container.setWidth(100px);
 container.setHeight(100px);
 container.setStyleName(containerBorder);
 Label label = new Label(Test Popup);
 label.addClickHandler(new ClickHandler() {
  @Override
  public void onClick(ClickEvent event)
  {
final DecoratedPopupPanel popup = new
DecoratedPopupPanel(true);
popup.setAutoHideEnabled(true);
popup.setWidget(new Label(Popup));
popup.show();
  }

 });
container.add(label);


I noticed the similar behaviour in GWT showcase :http://gwt.google.com/
samples/Showcase/Showcase.html#!CwBasicPopup. Popup is displayed on
click of Show Basic Popup button. The popup doesn't dissappear when
I click on the far right side in IE7. It works fine in IE8, Firefox
and Chrome.

Any help appreciated.


Regards,
Leela

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Huge data slowing down Celltable

2011-06-07 Thread Leela 
Hi,

I'm using GWT 2.2. We have requirement to display huge data (around
8000 rows and  20 columns) in Celltable.
The celltable is placed within a ScrollPanel to scroll the data.  We
are not using pager.

Following javascript is displayed  Stop running this script? A script
on this page is causing Internet Explorer to run slowly. If it
continues to run, your computer may become unresponsive. When I click
on Continue few times, finally the data is displayed. However when I
drag the scrollbar or click on the row, it is very slow.

We are using Firefox 3.5 and IE7. This slowness happens in both the
browsers.

Can celltable handle such huge data without pager? Any help/suggestion
appreciated.

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Re: Huge data slowing down Celltable

2011-06-07 Thread leela c 
Thanks for the suggestions.

8000 is the max limit for the data in our case. Though this is not a
practical scenario, we just thought of handling the worst case. We
wanted to identify if the problem was in our coding or if Celltable
has some issue with such large data.

As John suggested I would try the Push API approach else we might
require to  revisit the requirement.

On 6/7/11, Alain Ekambi jazzmatad...@googlemail.com wrote:
 8000 rows ???
 If  that s the requirement then maybe you should revisit the requirement
 instead of trying to implement something like displaying 8000 rows at once.
 Who is able to process 8000 rows of data  at once?

 2011/6/7 John LaBanca jlaba...@google.com

 8000 rows is too many to display at once.  Even a HTML file probably take
 a
 while to load, and the scrollbars become almost unusable because you don't
 have the fidelity to narrow in on a row.  The slow script warning happens
 when you block the UI for too long (sometimes measured in seconds, other
 times in lines of execution).

 You're better off using a pager, but if you really want to load 8,000
 rows,
 you can break it into chunks.  CellTable uses a push API, which means you
 can push data in segments and they will be appeneded to the end.  The
 process would look like:
 1. Send asynchronous request for 250 rows
 2. On response, push 250 rows into CellTable
 3. Go back to step 1

 The above method has two advantages.  First, you only request 250 rows at
 a
 time, which means a faster RPC call and less time deserializing the
 response, so your startup time will be much faster.  Second, you only
 render
 250 rows per event loop, so the browser doesn't lock up while populating
 the
 table.  The additional rows are appended to the end of the table.  You can
 play around with different row counts to get the best performance
 tradeoff.
  You might even load 50 on the first call for max startup time, then
 switch
 to 500 to reduce the load on the sever.

 Thanks,
 John LaBanca
 jlaba...@google.com



 On Tue, Jun 7, 2011 at 9:51 AM, Juan Pablo Gardella 
 gardellajuanpa...@gmail.com wrote:

 Wow ! how many rows!!! In IE is very slow. Very rarely requirement, is
 better to generate an excel file. I think with GWT at now is impossible
 to
 do fast. I think you must generate a html file in server side and then
 displayed.

 Juan


 2011/6/7 Leela rcleel...@gmail.com

 Hi,

 I'm using GWT 2.2. We have requirement to display huge data (around
 8000 rows and  20 columns) in Celltable.
 The celltable is placed within a ScrollPanel to scroll the data.  We
 are not using pager.

 Following javascript is displayed  Stop running this script? A script
 on this page is causing Internet Explorer to run slowly. If it
 continues to run, your computer may become unresponsive. When I click
 on Continue few times, finally the data is displayed. However when I
 drag the scrollbar or click on the row, it is very slow.

 We are using Firefox 3.5 and IE7. This slowness happens in both the
 browsers.

 Can celltable handle such huge data without pager? Any help/suggestion
 appreciated.

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