Didier's Blog

The Oracle UIX 2.2 Migration Tool is now available on OTN.
It allows you to migrate a project built using
Oracle ADF UIX to use Oracle ADF Faces.

There were several customers reporting the same problem with the UIX LOV (UIX component messageLovInput) in JDeveloper 10.1.2:

• the LOV wasn't returning the selected value in the UIX page the first time it was invoked;
• however, it was working correctly the next times a LOV was invoked in the same page.
  

The solution is to switch the Action Binding "Create" to "CreateInsert"
See more details in the following article:

    UIX LOV Doesn't Return the Selected Value the First Time.

The Problem

Your UIX page includes a Multi-Selection table with a high number of checkboxes that are checked
When you submit the page, it fails with a JavaScript error in Internet Explorer:

"Error on page." is displayed in the left low corner of the Internet Explorer.
If you double-click there, the IE Javascript error dialog pops up with the following:

Line: 2664
Char: 1
Error: Invalid syntax
Code: 0
URL: http://127.0.0.1:8989/<workspace>-ViewController-context-root/<uix_page>.uix

The same page works properly in other browsers.

The Cause

By default, the FORM tag in UIX uses the method="GET".
That means that the fields of your Form are added to the URL with the following format:

TableName%3Aselected%3A0=0&myTable%3Aselected%3A1=1%3...

The text copied above is only for 2 checkboxes.
So the length of the URL is increased by at least:

number of checkboxes * length of table name.

Internet Explorer has a limit of 2.083 characters
See document "INFO: Maximum URL Length Is 2,083 Characters in Internet Explorer"
Because of this limitation in the length of the URL, the browser has a problem.
You can check it by running the utility ieHttpHeaders, when running your UIX page:

1. when <table name="myTable">
   

   URL length = 2.279 bytes
   GET /.../table.uix?myTable%3Aselected%3A0=0&myTable%3Aselected%3A1=1&myTable%3Aselected%3A2=2&...
   

2. when <table name="myVeryVeryVeryLongTable">
   

   URL length = 3591 bytes
   GET  /.../table.uix?myVeryVeryVeryLongTable%3Aselected%3A0=0&myVeryVeryVeryLongTable%3Aselected%3A1=1&...
   

NB: utility ieHttpHeaders can be downloaded from [Here]

The Solution

1. Either reduce the length of the URL, by decreasing the number of checkboxes, and/or reducing the length of the table name;
   for example, if you name your table "a" instead of table "myTable", you'll gain
   

   80 * 6 (difference of characters) = 480 characters
   

   You should insure that the length of your URL is less than 2.083 characters
   
   
2. or use the POST method by adding method="POST" in your FORM tag, as the following:
   

   <form name="tableForm" method="POST">
   

   POST is not limited by the size of the URL for submitting name/value pairs, because they are transferred in the header and not the URL.