Bug 166029 Help context displays only the first time in data set query editor[0703]
Help context displays only the first time in data set query editor Build number: 2.2.0.v20061128-0824 Steps to reproduce: 1.new a report 2.new a JDBC data source: Driver:jdbc:oracle:thin:@spmdb:1521:test Database URL:jdbc:oracle:thin:@spmdb:1521:test user:root,password:root 3.new a set using above data source,in data set query input "select * from" 4.then input "CORDER.",then help context list displays 5.then delete the query and reinput "select * from CORDER." Expected result: help context list will be displayed whenever you input Actual result: Help context list was displayed in the first time and after that nothing is displayed. Error log: N/A
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
/**
	 * refresh page
	 * 
	 */
	private void refreshPage( )
	{
		
		DataSourceDesign curDataSourceDesign = this.getDataSetDesign( )
				.getDataSourceDesign( );
		if ( curDataSourceDesign != prevDataSourceDesign )
		{
			RemoveAllAvailableDbObjects( );
			resetJdbcInfo( curDataSourceDesign );
			enableSchemaComponent( isSchemaSupported );
			setRootElement( );
			sourceViewerConfiguration.getContentAssistProcessor( )
					.setDataSourceHandle( curDataSourceDesign );
			populateAvailableDbObjects( );
			prevDataSourceDesign = curDataSourceDesign;
		}
	}
	/**
	 * 
	 */
	private void addFetchDbObjectListener( )
	{
		availableDbObjectsTree.addListener( SWT.Expand, new Listener( ) {
			/*
			 * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
			 */