【发布时间】：2021-09-13 04:42:03
【问题描述】：
我是使用 itext 生成 pdf 的新手。我有一个问题，我在我的参考文献中添加了 itext7
添加带有值的 pdf。我想在我的 pdf 中居中对齐并设置粗体文本字段。我看过各种例子。但是，.SetBold 和 chunk 在 Visual Studio 中显示错误。
这是我为 pdf 调用的函数。
[HttpGet]
[Route("GetCoilWiseReport")]
public HttpResponseMessage GetCoilWiseReport(string jwt, string fixture="", string
type="", string ID= "",
string delivery = "", string invoice = "", string wagon = "", string location = "",
string ICHP= "",string remarks="",string date="")
{
if (!Common.VerificationToken.VerifyJWToken(jwt))
{
return null;
}
var doc_date = DateTime.Now.Date.ToString("dd/MM/yyyy").Replace("-", "/");
var Type1 = type;
var id1 = ID;
var delivery1 = delivery;
var invoice1= invoice;
var wagon1 = wagon;
var location1 = location;
var ICHP1 = ICHP;
var remarks1 = remarks;
var date1 = date;
string pdfDocument = @"D:\Annexure_One IT.pdf";//Utilities.ISOP_DOCS_FOLDER +
"MasterDocs\\SupplierDespatchATP.pdf";
var dateLine = "Date:" + doc_date ;
var coilDetails = " COIL Details: " + ID;
var firstRow = "Type : " + type +" ID:"+ID+ " Delivery No:"+delivery;
var secondRow = "Invoice No.:" + invoice+" Wagon No:"+wagon+" Location:"+location;
var thirdRow = "ICHP : " + ICHP + " Remarks:" + remarks;
PdfDocument pdf = new PdfDocument(new PdfWriter(pdfDocument));
//Add new page
PageSize ps = PageSize.A4;
PdfPage page = pdf.AddNewPage(ps);
PdfCanvas canvas = new PdfCanvas(page);
iText.Layout.Document iDoc = new iText.Layout.Document(pdf, ps);
PdfFont font = PdfFontFactory.CreateFont(StandardFonts.COURIER);
PdfFont fontBold = PdfFontFactory.CreateFont(StandardFonts.COURIER_BOLD);
IList<String> text = new List<String>();
text.Add("");
text.Add(dateLine);
text.Add("");
text.Add("");
text.Add(coilDetails);
text.Add("");
text.Add("");
text.Add(firstRow);
text.Add("");
text.Add("");
text.Add(secondRow);
text.Add("");
text.Add("");
text.Add(thirdRow);
text.Add("");
text.Add("");
text.Add("");
text.Add("");
text.Add("");
text.Add("signature");
;
foreach (String s in text)
{
//Add text and move to the next line
//canvas.NewlineShowText(s);
if (s == "signature")
{
List<string> coilURL = new List<string>();
List<string> coilView = new List<string>();
string connectionstring = Utilities.SQL_DB1;// our SQL DB connection
SqlConnection conn1 = new SqlConnection(connectionstring);
DataTable dt = new DataTable();
string query = "Select CCD_IMAGE_URL,CCD_VIEW_DESC from T_CQL_COIL_DESC
where CCD_COIL_ID = '" + ID + "'";
//SqlConnection conn = new SqlConnection(connectionstring);
SqlCommand cmd = new SqlCommand(query, conn1);
conn1.Open();
// create data adapter
SqlDataAdapter da = new SqlDataAdapter(cmd);
// this will query your database and return the result to your datatable
da.Fill(dt);
if (dt.Rows.Count > 0)
{
for (int i = 0; (i < dt.Rows.Count); i++)
{
coilURL.Add(imgurl + dt.Rows[i]["CCD_IMAGE_URL"].ToString());
coilView.Add(dt.Rows[i]["CCD_VIEW_DESC"].ToString());
var view = "View:"+coilView[i];
var sig = coilURL[i];
iText.Layout.Element.Paragraph p1 = new
iText.Layout.Element.Paragraph().Add(view);
//p.SetMaxHeight(20);
iDoc.Add(p1);
iText.Layout.Element.Image sigImage = new
iText.Layout.Element.Image(ImageDataFactory.Create(sig));
sigImage.SetAutoScale(true);
iText.Layout.Element.Paragraph p = new
iText.Layout.Element.Paragraph().Add(sigImage);
//p.SetMaxHeight(20);
iDoc.Add(p);
}
}
conn1.Close();
da.Dispose();
}
else
{
iText.Layout.Element.Paragraph para = new
iText.Layout.Element.Paragraph(s);
para.SetFont(font);
para.SetFontSize(9);
iDoc.Add(para);
}
}
//iDoc.Close();
//Close document
iDoc.Close();
// Add Paragraph to document
pdf.Close();
HttpResponseMessage httpResponseMessage = new HttpResponseMessage();
httpResponseMessage.Content = new StreamContent(new FileStream(pdfDocument,
FileMode.Open, FileAccess.Read));
//httpResponseMessage.Content.Headers.ContentType = new
MediaTypeHeaderValue("application / vnd.openxmlformats -
officedocument.wordprocessingml.document");
httpResponseMessage.Content.Headers.ContentType = new
MediaTypeHeaderValue("application/pdf");
httpResponseMessage.Content.Headers.ContentDisposition = new
ContentDispositionHeaderValue("attachment");
httpResponseMessage.Content.Headers.ContentDisposition.FileName = "Coil_Detail" +
fixture + "_" + ID + "_" + ".pdf";
httpResponseMessage.StatusCode = HttpStatusCode.OK;
return httpResponseMessage;
}
我正在尝试使 CoilDetails 加粗并居中对齐。在当前情况下，我该如何做到这一点。请帮忙
【问题讨论】：
-
“我正在尝试使 CoilDetails 加粗并居中对齐。在当前上下文中我该如何做。” - 首先，您当前的上下文，您的架构not 被设计为具有特殊样式的任何文本行，因为它们都保存在一个字符串列表中。当然，如果只有这一行需要特殊处理，你可以记住它在一个变量中的列表位置，然后当你遍历列表时，检查你是否在那个位置。或者，您可以在该字符串前面加上要检查的标记。或者可以具有保存此类信息的并行结构。或者...
标签： c# reactjs pdf itext itext7