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
}
	public void updateHandle( MapRuleHandle handle, int handleCount )
	{
		this.handle = handle;
		this.handleCount = handleCount;
	}
	public void setDesignHandle( DesignElementHandle handle )
	{
		this.designHandle = handle;
	}
	public MapRuleHandle getHandle( )
	{
		return handle;
	}
	private void fillExpression( Combo control )
	{
		String te = "";
		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 );
	}
	/**