使用iTextSharp。错误 - “指定的路径，文件名或两者都太长。完全限定的文件名必须少于260个字符，目录名必须少于248个字符。

使用itextsharp。我收到此错误指定的路径，文件名或两者都太长。完全限定的文件名必须少于260个字符，目录名称必须少于248个字符。请帮我过来。



代码片段：

Am using itextsharp. I got this error "The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters.". Please help me to over come this.

Code Snippet:

protected void ExportHTMLtoPDF()
{
    Response.ContentType = "application/pdf";
    Response.AddHeader("content-disposition", "attachment;filename=" + HttpContext.Current.Session["StudentID"].ToString() + ".pdf");
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
    StringWriter sw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(sw);
    frmPrint.RenderControl(hw);
    StringReader sr = new StringReader(sw.ToString());
    Document pdfDoc = new Document(PageSize.A3, 0f, 0f, 0f, 0f);
    HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
    PdfWriter writer;
    PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
    pdfDoc.Open();
    pdfDoc.Close();
    Response.Write(pdfDoc);
    Response.End();
}