[英]iTextSharp print multiple pages
我有MVC應用程序,可以打電話並在PDF上打印一條記錄。 我現在需要做的是將模型中的所有記錄打印到PDF文件中,每頁一條記錄。 我的記錄正在通過HTML視圖和Razor引擎格式化。 我該如何完成?
這是我實際創建PDF的代碼-
private void CreatePDF(string HTMLData, string fileName)
{
StringReader reader = new StringReader(HTMLData);
//Create PDF document
Document doc = new Document(PageSize.A4, 36, 36, 36, 36);
HTMLWorker parser = new HTMLWorker(doc);
StyleSheet styles = new StyleSheet();
styles.LoadTagStyle(HtmlTags.TABLE, HtmlTags.SIZE, "6pt");
styles.LoadTagStyle(HtmlTags.H3, HtmlTags.SIZE, "10pt");
styles.LoadTagStyle(HtmlTags.H5, HtmlTags.SIZE, "6pt");
parser.SetStyleSheet(styles);
PdfWriter.GetInstance(doc, new FileStream(fileName, FileMode.Create));
doc.Open();
try
{
//Parse Html and dump the result in PDF file
parser.Parse(reader);
}
catch (Exception ex)
{
//Display parser errors in PDF.
Paragraph paragraph = new Paragraph("Error!" + ex.Message);
Chunk text = paragraph.Chunks[0] as Chunk;
if (text != null)
{
text.Font.Color = BaseColor.RED;
}
doc.Add(paragraph);
}
finally
{
doc.Close();
}
}
這是一個調用函數,它產生一個帶有一個記錄的PDF-
var oOrder = _unitOfWork.OrderRepository.Get.Where(m => m.Id == id).FirstOrDefault();
if (oOrder != null)
{
OrderViewModel vm = new OrderViewModel() { Order = oOrder, Customer = _unitOfWork.CustomerRepository.Find(oOrder.CustomerId) };
GetEntityViewModelLists(vm);
string receipt = RenderRazorViewToString(ControllerContext, "_Receipt", vm);
var fileName = "Order Receipt_" + oOrder.Id + ".pdf";
var filepath = System.IO.Path.GetTempPath();
var filePath = filepath + fileName;
CreatePDF(receipt, filePath);
return new FileStreamResult(new FileStream(filePath, FileMode.Open, FileAccess.Read), "application/pdf");
最簡單的更改可能是將CreatePDF()
的第一個參數從字符串更改為字符串集合,然后對其進行循環。 (我沒有測試此代碼,但它應該非常准確。)
private void CreatePDF(IList<string> HTMLData, string fileName) {
//Create PDF document
Document doc = new Document(PageSize.A4, 36, 36, 36, 36);
HTMLWorker parser = new HTMLWorker(doc);
StyleSheet styles = new StyleSheet();
styles.LoadTagStyle(HtmlTags.TABLE, HtmlTags.SIZE, "6pt");
styles.LoadTagStyle(HtmlTags.H3, HtmlTags.SIZE, "10pt");
styles.LoadTagStyle(HtmlTags.H5, HtmlTags.SIZE, "6pt");
parser.SetStyleSheet(styles);
PdfWriter.GetInstance(doc, new FileStream(fileName, FileMode.Create));
doc.Open();
//Try/Catch removed
foreach (var s in HTMLData) {
StringReader reader = new StringReader(s);
parser.Parse(reader);
doc.NewPage();
}
doc.Close();
}
如果您不想更改其他調用者,也可以選擇重載原始方法。
private void CreatePDF(string HTMLData, string fileName) {
CreatePDF(new string[] { HTMLData }, fileName);
}
然后,您將獲得所有訂單並遍歷那些訂單,而不是單筆訂單
//I just made up a method but use whatever returns all of them
var oOrders = _unitOfWork.OrderRepository.GetAll();
//Create our collection of receipts
var receipts = new List<string>();
foreach (var oOrder in oOrders) {
OrderViewModel vm = new OrderViewModel() { Order = oOrder, Customer = _unitOfWork.CustomerRepository.Find(oOrder.CustomerId) };
GetEntityViewModelLists(vm);
receipts.Add(RenderRazorViewToString(ControllerContext, "_Receipt", vm));
}
CreatePDF(receipts, filePath);
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