Block navigation/scroll bar problem-- I'm really stuck on this one.

Question

I have a tabular form with a control block text item where a
value is entered and is used in the default "where clause" of
another block. All the items on the form are display items as
it is designed to only retrieve records-- i.e. no DML. The
problem occurs when I execute the default query (from a
when_button_pressed trigger)-- the form is populated and when I
use the scroll bar, the cursor moves from the control block item
to the block.item in the block being queried. I want the cursor
to stay in the block where I am entering values when I am using
the scroll bar but can't seem to get that to happen. I have
tried setting the "keep cursor position" property with no
effect. I can't seem to get this to work from a trigger either.
However, if I click on "next block" in the toolbar, the cursor
moves back to the correct item. Anyone have any ideas?
Thanks in advance.
Jeff

Answer 1

I had the same problem using weblogic and oracle clob but I solved it yesterday.
here is the part of my code:
import weblogic.jdbc.vendor.oracle.OracleThinClob;
import java.io.*;
import java.sql.*;
PreparedStatement stmt = con.prepareStatement ( "INSERT INTO database VALUES ( ?, EMPTY_CLOB() )" );
stmt.setInt ( 1, 1 );
// inserts a new entry with an empty clob object
stmt.executeUpdate ();
if ( stmt != null )
stmt.close();
// retrieves CLOB-Object
stmt = con.prepareStatement ( "SELECT clob_field FROM database WHERE id=?" );
stmt.setInt ( 1, 1 );
ResultSet rs = stmt.executeQuery ( );
if ( rs.next() )
Clob cl = rs.getClob(1);
Writer clobWriter = ((OracleThinClob)cl).getCharacterOutputStream();
// Open the sample file as a stream for insertion into the Clob column
File testFile = new File ( "file.txt" );
FileReader testReader = new FileReader ( testFile );
// buffer to hold data to being written to the clob.
char[] cBuffer = new char[((OracleThinClob)cl).getBufferSize()];
// Read data from file, write it to clob
int iRead = 0;
while( (iRead= testReader.read(cBuffer)) != -1 )
clobWriter.write( cBuffer, 0, iRead);
testReader.close();
clobWriter.close();
if ( rs != null )
rs.close();
if ( stmt != null )
stmt.close();
// update clob-data in database      
stmt = con.prepareStatement ( "UPDATE database SET clob_field = ? WHERE id = ?" );
stmt.setClob ( 1, cl );
stmt.setInt ( 2, 1 );
stmt.executeUpdate();
Don't forget to handle the exceptions!
Be sure that "weblogic.jar" is set in %classpath%.