Bug 157262 Column visibility doesn't work properly in attached report in PDF
Column visibility doesn't work properly in attached report Steps to reproduce: 1.open the attached file 2.preview it in PDF Expected result: Column visibility works well in PDF Actual result: The column visibility of the second and third column of the inner grid in the cell(1,0) doesn't works
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTableLM.java
{
			root.getStyle( ).setMarginTop( "0" ); 
		}
	}
	public TableLayoutInfo getLayoutInfo( )
	{
		return this.layoutInfo;
	}
	protected void buildTableLayoutInfo( )
	{
		
		this.layoutInfo = resolveTableLayoutInfo( (TableArea)root );
	}
	protected void newContext( )
	{
		createRoot( );
		buildTableLayoutInfo( );
		root.setWidth( layoutInfo.getTableWidth( ) );
		setMaxAvaHeight( getAvaHeight( ) );
		setMaxAvaWidth( layoutInfo.getTableWidth( ) );
		setCurrentIP( 0 );
		setCurrentBP( 0 );
		repeatRowCount = 0;
		rowCount = 0;
		lastRowArea = null;
		setCurrentIP( 0 );
		
	}
	protected int getAvaHeight( )
	{