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/MapRuleBuilder.java
valBuilder2.setText( "..." ); 
		gdata = new GridData( );
		gdata.heightHint = 20;
		gdata.widthHint = 20;
		valBuilder2.setLayoutData( gdata );
		valBuilder2.setToolTipText( Messages.getString( "HighlightRuleBuilderDialog.tooltip.ExpBuilder" ) ); 
		valBuilder2.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent e )
			{
				editValue( value2 );
			}
		} );
		valBuilder2.setVisible( false );
		if ( operator.getItemCount( ) > 0 )
		{
			operator.select( 0 );
		}
		lb = new Label( innerParent, SWT.NONE );
		lb.setText( Messages.getString( "MapRuleBuilderDialog.text.Display" ) ); 
		Composite format = new Composite( innerParent, SWT.NONE );
		format.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		glayout = new GridLayout( );
		format.setLayout( glayout );
		display = new Text( format, SWT.BORDER );
		gdata = new GridData( );
		gdata.widthHint = 300;
		display.setLayoutData( gdata );
		Composite space = new Composite( innerParent, SWT.NONE );
		gdata = new GridData( GridData.FILL_HORIZONTAL );
		gdata.heightHint = 20;