例外无法打开文件请帮我解决 [英] Exception could not open file plese help me to solve

问题描述

i


i创建了一个应用程序，将文件上传到文件夹，然后从该文件夹中获取文件并将其转换为图像。

这里是代码

i
i have created an app that uploads files to a folder and then takes the files from that folder and convert it to images.
here is the code

if (FileUpload1.HasFile)
            {
              
                  string file = System.IO.Path.GetFullPath(FileUpload1.PostedFile.FileName);
                  string filname = FileUpload1.PostedFile.FileName;
//UPLOADS THE FILE INTO THE FOLDER
                  FileUpload1.PostedFile.SaveAs(Server.MapPath("~\\NewFolder1\\") + FileUpload1.FileName);
//TAKES THE PATH and file
                  string strPath = Server.MapPath(Request.ApplicationPath) + "~/NewFolder1/" + filname;
//assign the file to ppt
ApplicationClass pptApplication = new ApplicationClass();
                  Presentation pptPresentation = pptApplication.Presentations.Open(strPath, MsoTriState.msoFalse,
                  MsoTriState.msoFalse, MsoTriState.msoFalse);
 
                  var slides = new List<string>();
                  targetPath = Server.MapPath("~/NewFolder1/");
                  targetPath += "\\{0}";
                  for (var i = 1; i <= pptPresentation.Slides.Count; i++)
                  {
                  .
                  .

但是当我运行应用程序时它会出现以下错误。

but when i run the app it gives the follwoing error.

System.Runtime.InteropServices.COMException: PowerPoint could not open the file.
Presentation pptPresentation = pptApplication.Presentations.Open(strPath, MsoTriState.msoFalse....

在这行代码中我得到以上异常

In this line of code i am getting this above exception

pptApplication.Presentations.Open(strPath, MsoTriState.msoFalse,
                  MsoTriState.msoFalse, MsoTriState.msoFalse);

已添加代码块[/ Edit]

Code block added[/Edit]

推荐答案

您好，我想到的第一件事是您的代码行：

Hi , firts thing that come to my mind is the line of your code:

string strPath = Server.MapPath(Request.ApplicationPath) + "~/NewFolder1/" + filname;

也许用下一行改变它是合理的：

Maybe it could be reasonable to change it with next line:

string strPath = Server.MapPath(System.IO.Path.Combine("~/NewFolder1" , filname));

认为这可能对您有所帮助，因为当您调用下一行代码时，它返回文件夹NewFolder1的完整路径：

Server.MapPath（〜/ NewFolder1） - >将是这样的（c：\inetpub\wwwroot\mysite\\\
ewfolder1）;

think this might help you, because when you invoke next line of code , it return the full path to folder "NewFolder1" :
Server.MapPath("~/NewFolder1") -> will be something like that (c:\inetpub\wwwroot\mysite\newfolder1);

这篇关于例外无法打开文件请帮我解决的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！