具有 2 个映射驱动器的 C# 移动文件

Question

我需要使用以下代码将名为A:的映射文件夹中存在的文件移动到另一个映射文件夹B:

File.Move(@"A:file.txt",@"B:");

它返回以下错误

Could not find file 'A:file.txt'.

我尝试在文件夹资源管理器中打开 A：\file.txt，它正常打开文件

Answer 1

看起来File.Move仅适用于本地驱动器上的文件。

File.Move实际上调用了MoveFile，其中指出源和目标都应该是：

本地计算机上文件或目录的当前名称。

使用File.Copy和File.Delete的组合会更好。

将文件从A复制到B，然后从A中删除该文件。

Answer 2

如前所述，File.Move需要sourceFileName和destFileName。
并且您在第二个参数中缺少文件名。

如果要移动文件并保持相同的名称，则可以使用GetFileName从源文件名中提取文件名，并在dest文件名中使用它

string sourceFileName = @"V:Nothing.txt";
string destPath   = @"T:";
var fileName = Path.GetFileName(sourceFileName);
File.Move(sourceFileName, destPath + fileName );

下面是一个调试代码：

public static void Main() 
{
string path = @"c:tempMyTest.txt";
string path2 = @"c:temp2MyTest.txt";
try 
{
if (!File.Exists(path)) 
{
// This statement ensures that the file is created,
// but the handle is not kept.
Console.WriteLine("The original file does not exists, let's Create it.");
using (FileStream fs = File.Create(path)) {}
}
// Ensure that the target does not exist.
if (File.Exists(path2)) {           
Console.WriteLine("The target file already exists, let's Delete it.");
File.Delete(path2);
}
// Move the file.
File.Move(path, path2);
Console.WriteLine("{0} was moved to {1}.", path, path2);
// See if the original exists now.
if (File.Exists(path)) 
{
Console.WriteLine("The original file still exists, which is unexpected.");
} 
else 
{
Console.WriteLine("The original file no longer exists, which is expected.");
}   
} 
catch (Exception e) 
{
Console.WriteLine("The process failed: {0}", e.ToString());
}
}