我想通过使用itextsharp库将gridview导出为pdf.问题是在pdf文档中缺少一些土耳其字符,如İ,ı,Ş,ş等.用于导出pdf的代码是：
protected void LinkButtonPdf_Click(object sender,EventArgs e)
{
Response.ContentType = "application/pdf";
Response.ContentEncoding = System.Text.Encoding.UTF8;
response.addheader("content-disposition","attachment;filename=FileName.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
System.IO.StringWriter stringWrite = new StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
GridView1.RenderControl(htmlWrite);
StringReader reader = new StringReader(textConvert(stringWrite.ToString()));
Document doc = new Document(PageSize.A4);
HTMLWorker parser = new HTMLWorker(doc);
PdfWriter.GetInstance(doc,Response.OutputStream);
doc.open();
parser.Parse(reader);
doc.Close();
}
public static string textConvert(string S)
{
if (S == null) { return null; }
try
{
System.Text.Encoding encFrom = System.Text.Encoding.UTF8;
System.Text.Encoding encTo = System.Text.Encoding.UTF8;
string str = S;
Byte[] b = encFrom.GetBytes(str);
return encTo.GetString(b);
}
catch { return null; }
}
注意：当我想在pdf文档中插入字符时,会显示缺少的字符.我用这段代码插入字符：
BaseFont bffont = BaseFont.CreateFont("C:\\WINDOWS\\Fonts\\arial.ttf",BaseFont.IDENTITY_H,BaseFont.NOT_EMbedDED);
Font fontozel = new Font(bffont,12,Font.norMAL,new Color(0,0));
doc.Add(new Paragraph("İİııŞŞşşĞĞğğ",fontozel));
解决方法
最后我想我找到了解决方案,我改变了它的一些源代码,以显示土耳其字符(土耳其语字符代码是cp1254)
I add “
public const string CP1254 = "Cp1254";” to [BaseFont.cs] in the source code.After that I modify the [FactoryProperties.cs].I changed like this;
public Font GetFont(ChainedProperties props)
{
I don't write the whole code.I changed only code below;
------------Default itextsharp code------------------------------------------------------
if (encoding == null)
encoding = BaseFont.WINANSI;
return fontImp.GetFont(face,encoding,true,size,style,color);
-------------modified code--------------------------------------------
encoding = BaseFont.CP1254;
return fontImp.GetFont("C:\\WINDOWS\\Fonts\\arial.ttf",color);
}
在编译新的dll之后,显示缺少的字符.