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
}
		}
		public void selectColumn( int iIndex )
		{
			iColumnIndex = iIndex;
			bColumnSelection = true;
			redraw( );
		}
		public void clearContents( )
		{
			for ( int i = 0; i < cells.length; i++ )
			{
				cells[i].clear( );
			}
			cells = new Vector[0];
			colors = new Color[0];
			iSelectedRow = -1;
			bColumnSelection = false;
			super.getHorizontalBar( ).setValues( 1, 1, 1, 1, 1, 1 );
			super.getVerticalBar( ).setValues( 1, 1, 1, 1, 1, 1 );
		}
		public void setColumnColor( int iColumnIndex, Color color )
		{
			if ( iColumnIndex < colors.length )
			{
				colors[iColumnIndex] = color;
			}
		}
		public boolean isColumnSelected( int iIndex )
		{