Af:table Scroll bars not displayed in IE11 for large number of rows

Hi. I'm using JDeveloper 11.1.2.4.0.
The requirements of our application are to display a table potentially displaying very large numbers of rows (sometimes in excess 3 million). While the user does not need to scroll through this many rows, the QBE facility allows drill-down into specific information in the rowset. We moved up to JDeveloper 11.1.2.4.0 primarily so IE11 could be used instead of IE8 to overcome input latency in ADF forms.
However, it seems that IE11 does not enable the vertical or horizontal scroll bars for the af:table component when the table contains greater than (approx) 650,000 rows. This is not the case when the Chrome browser is used. Nor was this the case on IE8 previously (using JDev 11.1.2.1.0).
When the table is filtered using the QBE (to a subset < 650,000 rows), the scroll bars are displayed correctly.
In the code the af:table component is surrounded by an af:panelCollection component which is itself surrounded by an af:panelStretchLayout component.
Does anyone have any suggestions as to how this behaviour can be corrected? Is it purely a browser problem, or might there be a programmatic workaround in ADF?
Thanks for your help.

Thanks for your response. That's no longer an option for us though...
Some further investigation into the generated HTML has yielded the following information...
The missing scroll bars appear to be as a consequence of the setting of a style for the horizontal and vertical scroll bars (referenced as vscroller and hscroller in the HTML). The height of the scrollbar appears to be computed by multiplying the estimated number of rows in the iterator on which the table is based by 16 to give a scrollbar size proportional to the amount of data in the table, although it is not obvious why that should be done for the horizontal scroller. If this number is greater than or equal to 10737424 pixels then the scroll bars do not display in IE11.
It would seem better to be setting this height to a sensible limiting number of pixels for a large number of rows?
Alternatively, is it possible to find where this calculation is taking place and override its behaviour?
Thanks.

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<af:clientListener method="handleEvent"
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<af:serverListener type="csaCustomEvent"
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<af:commandToolbarButton text="Reorder Questions"
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</af:toolbar>
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<f:facet name="statusbar"/>
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selectedRowKeys="#{bindings.AppQuestionStudentRefVO1.collectionModel.selectedRow}"
selectionListener="#{bindings.AppQuestionStudentRefVO1.collectionModel.makeCurrent}"
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inlineStyle="vertical-align:top;"/>
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headerText="#{bindings.AppQuestionStudentRefVO1.hints.NumberWordsInResponse.label}"
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actionListener="#{schlrAppRequestBean.cancelPopup}"
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     at oracle.jbo.server.QueryCollection.fetchRangeAt(QueryCollection.java:5430)
     at oracle.jbo.server.ViewRowSetIteratorImpl.scrollRange(ViewRowSetIteratorImpl.java:1329)
     at oracle.jbo.server.ViewRowSetIteratorImpl.setRangeStartWithRefresh(ViewRowSetIteratorImpl.java:2730)
     at oracle.jbo.server.ViewRowSetIteratorImpl.setRangeStart(ViewRowSetIteratorImpl.java:2715)
     at oracle.jbo.server.ViewRowSetImpl.setRangeStart(ViewRowSetImpl.java:3015)
     at oracle.jbo.server.ViewObjectImpl.setRangeStart(ViewObjectImpl.java:10678)
     at oracle.adf.model.binding.DCIteratorBinding.setRangeStart(DCIteratorBinding.java:3552)
     at oracle.adfinternal.view.faces.model.binding.RowDataManager._bringInToRange(RowDataManager.java:101)
     at oracle.adfinternal.view.faces.model.binding.RowDataManager.setRowIndex(RowDataManager.java:55)
     at oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding$FacesModel.setRowIndex(FacesCtrlHierBinding.java:800)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
<LoopDiagnostic> <dump> [8261] variableIterator variables passivated >>> TrackQueryPerformed def
<LifecycleImpl> <_handleException> ADF_FACES-60098:El ciclo de vida de Faces recibe excepciones no tratadas en la fase RENDER_RESPONSE 6
What is the best way to display this amount of data in a af:table and do CRUD operations?
Thanks
Edited by: 972255 on 05/12/2012 09:51

Hi,
honestly, the best way is to provide users with an option to filter the result set displayed in the table to reduce the result set size. No-one will query 2.00.000 rows using the table scrollbar.
So one hint for optimization would be a query form (e.g. af:query)
To answer your question "srollable" vs. "page range", see
http://docs.oracle.com/cd/E21043_01/web.1111/b31974/bcadvvo.htm#ADFFD1179
Pay attention to what is written in the context of +"The range paging access mode is typically used for paging through read-only row sets, and often is used with read-only view objects.".+
Frank

Deleing large number of rows from table

Hi,
Consider tables A,B,C,D,E,F. all are having 100000++ records Tables B,C,D are dependent on table A (with foreign key constraint). When I am deleting records from all tables, table B,C,D are taking max 30-40 seconds while table A is taking 30-40 mins. All tables are having indexes.
Method I have used:
1. Created Temp table
2. then deleted all records from B,C,D,E,F for all records in temp table for limit of 500.
delete from B where exists (select 1 from temp where b.col1=temp.col1);
3. please suggest options for me why it is taking too much time for deleting records in table A.
Is there any thing that during deleting data from such master table, it is reffering to all dependent tables even if dependent data is not present ??? If yes then couls you please please suggest options for me to remove this ? I hope it won't go for CHECK constraints during deleting data.
Thanks,
Avinash
Edited by: user12952025 on Apr 30, 2013 2:55 AM
Edited by: user12952025 on Apr 30, 2013 2:56 AM
Edited by: user12952025 on Apr 30, 2013 2:57 AM

user12952025 wrote:
Hi,
Consider tables A,B,C,D,E,F. all are having 100000++ records Tables B,C,D are dependent on table A (with foreign key constraint). When I am deleting records from all tables, table B,C,D are taking max 30-40 seconds while table A is taking 30-40 mins. All tables are having indexes.What attribute of the Foreign key is specified? Is it On Delete Cascade? If yes, then in a way, deleting data fro Child tables is un-necessary. Only a Delete from parent shall suffice.
>
Method I have used:
1. Created Temp table
2. then deleted all records from B,C,D,E,F for all records in temp table for limit of 500.
delete from B where exists (select 1 from temp where b.col1=temp.col1);
3. please suggest options for me why it is taking too much time for deleting records in table A.
Is there any thing that during deleting data from such master table, it is reffering to all dependent tables even if dependent data is not present ??? If yes then couls you please please suggest options for me to remove this ? I hope it won't go for CHECK constraints during deleting data.One another way is to "Switch-Off" the relationship while deleting the data.
ALTER TABLE table_name
disable CONSTRAINT constraint_nameAnd then Delete the data from each of tables.
You did specify the number of rows in each table, it would have been better to mention the number of rows to be deleted.
It is not a hard-and-fast way, but would generally perform better, to copy the data (to be retained) from Parent Table into a Temporary Table, Drop Parent Table and rename teh Temporary table to parent table. Similar can be performed on Child tables.
You may then Enable the Foreign key constraints.

How to Capture a Table with large number of Rows in Web UI Test?

HI,
Is there any possibility to capture a DOM Tabe with large number of Rows (say more than 100) in Web UI Test?
Or is there any bug?

Hi,
You can try following code to capture the table values.
To store the table values in CSV :
*web.table( xpath_of_table ).exportToCSVFile("D:\exporttable.csv", true);*
TO store the table values in a string:
*String tblValues=web.table( xpath_of_table ).exportToCSVString();*
info(tblValues);
Thanks
-POPS

Af:table Scroll bars not displayed in IE11 for large number of rows

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