iTextSharp System.IO.FileNotFoundException

Question

我在下面的发行版中遇到System.IO.FileNotFoundException，但在调试时却没有得到。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Forms;
using System.Text.RegularExpressions;
using Microsoft.Office.Interop.Word;
using System.IO;
using iTextSharp.text.pdf;
using iTextSharp.text.pdf.parser;
using iTextSharp.text.xml;
using Microsoft.VisualBasic;

namespace CountingTool
{
    public partial class MainWindow : System.Windows.Window
    {
        private string SelectedFile;

        public MainWindow()
        {
            InitializeComponent();
        }        

        private void LoadFileButton_Click(object sender, System.EventArgs e)
        {
            OpenFileDialog LoadFileDialog = new OpenFileDialog();

            LoadFileDialog.Title = "Select file";
            LoadFileDialog.Filter = "PDF files|*.pdf";
            LoadFileDialog.InitialDirectory = @"C:\";

            if (LoadFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                try
                {
                    SelectedFile = LoadFileDialog.FileName;
                 }
                catch (Exception ex)
                {
                    System.Windows.Forms.MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
                }
            }
        }

        private void CountEach()
        {
            string FullPdf = ExtractFullPdf();
            ...
        }

        private string ExtractFullPdf()
        {
            PdfReader sourceDocument = new PdfReader(SelectedFile);
            StringBuilder text = new StringBuilder();

            for (int i = 1; i <= sourceDocument.NumberOfPages; i++)
            {
                text.Append(PdfTextExtractor.GetTextFromPage(sourceDocument, i));
            }

            sourceDocument.Close();
            return text.ToString();
        }
}

似乎引起问题的行是PdfReader sourceDocument = new PdfReader(SelectedFile); 。

任何想法将不胜感激。

谢谢

Answer 1

这里的问题是itextsharp.dll必须与生成的.exe位于同一目录中。

Answer 2

如果您完全确定所指定的路径正确（即使可能不太可能），那么我建议您使用以下任一方法：

Request.PhysicalApplicationPath（“在此处输入路径”）;

Server.MapPath（“在此处输入路径”）;