void Main()
{
	var filename = Path.Combine(Zach.DevTestFolder, $"{Guid.NewGuid()}.pdf");
	var doc = new PdfDocument();
	
	doc.AutoTag = true;

	PdfPage page = doc.Pages.Add();
	currentPage = page;
	PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 14);

	grid = new PdfGrid();
	grid.EndCellLayout += EndCellLayout;
	
	var gridTag = new PdfStructureElement(PdfTagType.List);
	
	//grid.PdfTag = gridTag;
		
	grid.Columns.Add(2);
	grid.Columns[0].Width = 50;
	grid.Columns[1].Width = 500;
	
	// first list item
	// li
	var row = grid.Rows.Add();
	var g1r1Tag = new PdfStructureElement(PdfTagType.ListItem);
	g1r1Tag.Parent = gridTag;	
	//row.PdfTag = g1r1Tag;
	
	row.Height = 16;
	
	// li
	var g1r2 = grid.Rows.Add();
	g1r2.Height = 16;
	
	var g1r2Tag = new PdfStructureElement(PdfTagType.ListItem);
	g1r2Tag.Parent = gridTag;
	//g1r2.PdfTag = g1r2Tag;
	
	// nested list
	grid2 = new PdfGrid();
	grid2.EndCellLayout += EndCellLayoutGrid2;
	
	grid2.Columns.Add(2);
	grid2.Columns[0].Width = 50;
	grid2.Columns[1].Width = 450;
	
	var g2Tag = new PdfStructureElement(PdfTagType.List);
	//grid2.PdfTag = g2Tag;
	
	var g2r1 = grid2.Rows.Add();
	g2r1.Height = 16;

	var g2r1Tag = new PdfStructureElement(PdfTagType.ListItem);
	g2r1Tag.Parent = g2Tag;
	//g2r1.PdfTag = g2r1Tag;

	// draw parent grid items

	grid.Draw(page, 0, 0, 550, new PdfGridLayoutFormat());

	// save and open document
	using var fs = new FileStream(filename, FileMode.Create);
	doc.Save(fs);
	doc.Close();
	System.Diagnostics.Process.Start(Zach.AdobeExe, filename);
}

// You can define other methods, fields, classes and namespaces here
private void EndCellLayout(object sender, PdfGridEndCellLayoutEventArgs args)
{
	PdfStructureElement tag;
	if (args.CellIndex == 0)
		tag = new PdfStructureElement (PdfTagType.Label);
	else
		tag = new PdfStructureElement (PdfTagType.ListBody);
	
	float x = args.CellIndex * 50;
	float y = args.RowIndex * 16;

	string content = "";
	PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 14);

	if (args.RowIndex == 0 && args.CellIndex == 0)
	{
		content = "1.";
	}
	else if (args.RowIndex == 0 && args.CellIndex == 1)
	{
		content = "one fish";
	}
	else if (args.RowIndex == 1 && args.CellIndex == 0)
	{
		content = "2.";
	}

	PdfGridRow row = ((PdfGrid)sender).Rows[args.RowIndex];
	PdfGridCell cell = ((PdfGrid)sender).Rows[args.RowIndex].Cells[args.CellIndex];

	if (!string.IsNullOrWhiteSpace(content))
	{
		tag.Parent = (PdfStructureElement)row.PdfTag;
		//cell.PdfTag = tag;

		PdfTextElement element = new PdfTextElement(content, font);
		cell.Value = element;
		element.PdfTag = (PdfStructureElement)cell.PdfTag;
		element.Draw(currentPage, x, y, new PdfLayoutFormat());
	}
	else
	{
		grid2.Draw(currentPage, 50, 16, 500, new PdfGridLayoutFormat());
	}
}

private void EndCellLayoutGrid2(object sender, PdfGridEndCellLayoutEventArgs args)
{
	PdfStructureElement tag;
	if (args.CellIndex == 0)
		tag = new PdfStructureElement(PdfTagType.Label);
	else
		tag = new PdfStructureElement(PdfTagType.ListBody);

	float y = 16;
	float x = args.CellIndex * 50 + 50;

	string content = "";
	PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 14);

	if (args.CellIndex == 0)
	{
		content = "1.";
	}
	else if (args.CellIndex == 1)
	{
		content = "red fish";
	}

	PdfGridRow row = ((PdfGrid)sender).Rows[args.RowIndex];
	PdfGridCell cell = ((PdfGrid)sender).Rows[args.RowIndex].Cells[args.CellIndex];

	tag.Parent = (PdfStructureElement)row.PdfTag;
	//cell.PdfTag = tag;

	PdfTextElement element = new PdfTextElement(content, font);
	element.PdfTag = (PdfStructureElement)cell.PdfTag;

	element.Draw(currentPage, x, y, new PdfLayoutFormat());
}