Bug 208190 [Regression]A blank column occurs when export report to excel file[1203]
Description: Export report to excel file, a blank column is created on the front of the columns exported. Build version:2.3.0.v20071031-0800 Steps to reproduce: 1.Create a sample datasource and dataset. 2.Pull the dataset to the report layout,and add a group on the table. 3.Preview in web viewer, export the report to excel file, a blank column is created as the first column.
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/layout/ExcelLayoutEngine.java
{
					data = waste;
					
				}
				
				for(int p =0 ; p < rowspan; p++) {
					cache.addData( i - detal, data );
				}	
			}
		}
	}
	public void endTable( )
	{
		if ( !tables.isEmpty( ) )
		{
			tables.pop( );
			endContainer( );
		}
	}
	public void addContainer( IStyle style, HyperlinkDef link )
	{
		Rule rule = getCurrentContainer( ).getRule( );
		StyleEntry entry = engine.createEntry( rule, style );
		addContainer( new XlsContainer( entry, rule ) );
	}
	public void addContainer( XlsContainer container )
	{
		getCurrentContainer( ).setEmpty( false );
		int col = axis.getCoordinate( container.getRule( ).getStart( ) );
		int pos = cache.getColumnSize( col - detal );