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
{
		int groupLevel = groupContent.getGroupLevel( );
		groupStack.push( new Integer( groupLevel ) );
	}
	public void endGroup( IGroupContent groupContent )
	{
	    
		int groupLevel = groupContent.getGroupLevel( );
		updateUnresolvedCell( groupLevel, false );
		updateUnresolvedCell( groupLevel, true );
		assert ( !groupStack.isEmpty( ) );
		groupStack.pop( );
	}
	private int getGroupLevel( )
	{
		if ( !groupStack.isEmpty( ) )
		{
			return ( (Integer) groupStack.peek( ) ).intValue( );
		}
		return -1;
	}
	/**
	 * start row update content cache
	 * 
	 * @param row
	 */
	public void startRow( IRowContent row )
	{
		currentRowID++;
		rowCount++;