如何在itextSharp中为长表添加新页面

Question

我的问题是itext不会为长表添加新页面，它仅呈现一页并且仅显示表的一部分，这是我的代码：

MemoryStream reportStream = new MemoryStream();
IEnumerable<Site> siteList = SiteManager.GetAllSites();
Document doc = new Document();
doc.SetMargins(7f, 10f, 10f, 7f);
var writer = PdfWriter.GetInstance(doc, reportStream);
writer.CloseStream = false;
doc.Open();
PdfPTable tableLayout = new PdfPTable(11);
var personalTable = AddPersonalTable(tableLayout);
personalTable.WriteSelectedRows(0, -1, 0, 842, doc.Left, doc.Top 
,writer.DirectContent);
doc.Close();
byte[] byteInfo = reportStream.ToArray();
reportStream.Write(byteInfo, 0, byteInfo.Length);
reportStream.Position = 0;
return reportStream;

和我的方法：

private static PdfPTable AddPersonalTable(PdfPTable tableLayout)
{
        float[] headers = { 12, 9, 10, 4, 9, 11, 9, 9, 9, 9, 9 };  
        tableLayout.SetWidths(headers);       
        tableLayout.WidthPercentage = 100;      
        tableLayout.HeaderRows = 1;
        //adding cells
        return tableLayout;
}

感谢您的帮助。