vb.net 在 File.Copy 期间找不到路径的一部分
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17461085/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Could not find a part of the path during File.Copy
提问by Artemis
I'm trying to copy a file to another directory but I'm getting this error
我正在尝试将文件复制到另一个目录，但出现此错误
System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Documents and Settings\(my username)\Desktop\Source_Folder\File_1.xlsx'.
System.IO.DirectoryNotFoundException：找不到路径“C:\Documents and Settings\（我的用户名）\Desktop\Source_Folder\File_1.xlsx”的一部分。
But File_1.xlsx exists in the folder Source_Folder which exists on my Desktop. So why am I getting this error?
但是 File_1.xlsx 存在于我桌面上的 Source_Folder 文件夹中。那么为什么我会收到这个错误呢？
Here is my code
这是我的代码
Dim path_orig As String = "C:\Documents and Settings\(my username)\Desktop\Source_Folder\"
Dim oldFile As String = System.IO.Path.Combine(path_orig, filename)
Dim path_new As String = Server.MapPath("~") & "\Destination_Folder\"
Dim newFile As String = System.IO.Path.Combine(path_new, filename)
File.Copy(oldFile, newFile, True)
*filename is a variable which in this case is "File_1.xlsx"
*filename 是一个变量，在这种情况下是“File_1.xlsx”
回答by Samuel Neff
Don't hard code Documents and Settings. It will change by OS. Use this instead:
不要硬编码Documents and Settings。它会因操作系统而改变。改用这个：
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "Source_Folder")
Also if you're running this in a web application you're likely running into permissions problems. Change the location where you're storing files and/or change the user the app pool is running under and/or grant the app pool user rights to the folder.
此外，如果您在 Web 应用程序中运行它，您可能会遇到权限问题。更改您存储文件的位置和/或更改运行应用程序池的用户和/或授予应用程序池用户对该文件夹的权限。
