我正在尝试从我的 SQL 服务器检索二进制图像数据并使用以下方法将其导出到我的 pdf 文件中
phrase.Add(new Chunk("Image :", normalFont));
Byte[] bytes = (Byte[])dr[0];
Response.Buffer = true;
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.ContentType = "image/jpg";
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
phrase.Add(bytes);
table.AddCell(phrase);
当我尝试使用上述方法将二进制图像数据显示到我的 web 应用程序中时,它工作得非常好。不幸的是,当我想将图像导出到我的 pdf 文件中时,它不起作用。
我在短语.Add 方法上有这样的错误。我知道我做错了什么,但我无法弄清楚
这是我的 PDF 按钮的整个后端代码。
protected void btnPDF_Click(object sender, EventArgs e)
{
var doc1 = new Document();
var filename = "MyTestPDF" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".pdf";
var output = new FileStream(Path.Combine("C:\\Users\\apr12mpsip\\Desktop\\New folder", filename), FileMode.Create);
PdfWriter.GetInstance(doc1, output);
PdfPCell cell = null;
doc1.Open();
PdfPTable table = new PdfPTable(1);
table.TotalWidth = 585f;
table.LockedWidth = true;
var logo = iTextSharp.text.Image.GetInstance(Server.MapPath("~/image/logo.jpg"));
doc1.Add(logo);
var titleFont = FontFactory.GetFont("Arial", 18, Font.BOLD);
doc1.Add(new Paragraph("Official Report. Member Report ID : " + DDLCase.SelectedValue, titleFont));
var normalFont = FontFactory.GetFont(FontFactory.HELVETICA, 14, Font.BOLD);
var phrase = new Phrase();
SqlConnection con = new SqlConnection("Data Source = localhost; Initial Catalog = project; Integrated Security = SSPI");
SqlCommand cm = new SqlCommand("Select lro.fullname, lro.contact, mr.typeofcrime, mr.location,mr.crdatetime, pr.policeid, pr.prdatetime, mr.citizenreport, pr.policereport, aor.officialreport, mr.image1 from MemberReport mr, PoliceReport pr, LoginRegisterOthers lro, AdminOfficialReport aor where mr.memberreportid = '" + DDLCase.SelectedValue + "' and mr.memberreportid=pr.memberreportid and pr.policereportid=aor.policereportid", con);
con.Open();
SqlDataReader dr;
dr = cm.ExecuteReader();
if (dr.Read())
{
phrase.Add(new Chunk("Full Name :", normalFont));
phrase.Add(dr[0].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Contact :", normalFont));
phrase.Add(dr[1].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Type Of Crime :", normalFont));
phrase.Add(dr[2].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Location :", normalFont));
phrase.Add(dr[3].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Citizen Report Date Time :", normalFont));
phrase.Add(dr[4].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Police ID :", normalFont));
phrase.Add(dr[5].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Police Report Date Time :", normalFont));
phrase.Add(dr[6].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Citizen Report :", normalFont));
phrase.Add(dr[7].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Police Report :", normalFont));
phrase.Add(dr[8].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Official Report :", normalFont));
phrase.Add(dr[9].ToString());
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(Chunk.NEWLINE);
phrase.Add(new Chunk("Image :", normalFont));
Byte[] bytes = (Byte[])dr[0];
Response.Buffer = true;
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.ContentType = "image/jpg";
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
phrase.Add(bytes);
table.AddCell(phrase);
}
dr.Close();
doc1.Add(table);
doc1.Close();