Bug 313297 XML data set fail in chart data preview
chart/org.eclipse.birt.chart.ui/src/org/eclipse/birt/chart/ui/swt/CustomPreviewTable.java
{
			btnHeaders.get( i ).setAlignment( iHeaderAlignment );
		}
	}
	public void createDummyTable( )
	{
		isDummy = true;
		
		for ( int i = 0; i < 3; i++ )
		{
			columnWidths.add( Integer.valueOf( 200 ) );
		}
		placeComponents( );
		layout( true );
		
		WizardBase.removeException( );
	}
	int getColumnWidthFor( int iIndex )
	{
		
		
		if ( iIndex > columnWidths.size( ) - 1 || iIndex < 0 )
		{
			return 0;
		}
		Object oTmp = null;
		oTmp = columnWidths.get( iIndex );
		return ( (Integer) oTmp ).intValue( );
	}
	int getLeftEdgeForColumn( int iIndex )