Bug 135840 "Value of this data item" selection in map and highlight is no effect
Details: "Value of this data item" selection in map and highlight is no effect Step: 1. New a datasource and dataset 2. Add a table and binding all the column. 3. Add a data item in detail row. 4. Add a map of the data item. Select the value and open the list. Select "Value of this data item" Actual result: No effect when select this selection
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HighlightRuleBuilder.java
if ( handle != null )
		{
			te = handle.getTestExpression( );
		}
		if ( designHandle instanceof DataItemHandle )
		{
			control.add( VALUE_OF_THIS_DATA_ITEM );
		}
		control.add( DEUtil.resolveNull( te ) );
		control.select( control.getItemCount( ) - 1 );
	}
	/**
	 * Refreshes the OK button state.
	 * 
	 */
	private void updateButtons( )
	{
		enableInput( isExpressionOK( ) );
		getOkButton( ).setEnabled( isConditionOK( ) );
	}
	private void enableInput( boolean val )
	{
		operator.setEnabled( val );
		value1.setEnabled( val );
		value2.setEnabled( val );
		valBuilder1.setEnabled( val );
		valBuilder2.setEnabled( val );
		font.setEnabled( val );
		size.setEnabled( val );
		color.setEnabled( val );