Question

我有一个组合路径的功能。实施例

我的申请位于D:\toto\titi\tata\myapplication.exe

我创建了一个Windows窗体应用程序（c＃），它根据应用程序的路径（D:\toto\titi\tata\myapplication.exe）解决相对路径。

我想这样：

1）要解决的路径是test.txt => D:\toto\titi\tata\test.txt

2）要解决的路径是.\..\..\test\test.txt => D:\toto\test\test.txt

3）要解决的路径是.\..\test\test.txt => D:\toto\titi\test\test.txt

4）要解决的路径是.\..\..\..\test\test.txt => D:\test\test.txt

5）要解决的路径是.\..\..\..\..\test\test.txt => The path doesn't exist

6）要解决的路径是\\server\share\folder\test => get the corresponding path in the server。

我使用这种方法

private void btnSearchFile_Click(object sender, EventArgs e)
{
    // Open an existing file, or create a new one.
    FileInfo fi = new FileInfo(@"D:\toto\titi\tata\myapplication.exe");

    // Determine the full path of the file just created or opening.
    string fpath = fi.DirectoryName;

    // First case.
    string relPath1 = txtBoxSearchFile.Text;
    FileInfo fiCase1 = new FileInfo(Path.Combine(fi.DirectoryName, relPath1.TrimStart('\\')));

    //Full path
    string fullpathCase1 = fiCase1.FullName;

    txtBoxFoundFile.Text = fullpathCase1;
}

但我没有解决第1点）;第5点和第6点

你能帮助我吗

Answer 1

您可以使用Environment.CurrentDirectory获取当前目录。

要从相对路径转换为绝对路径，您可以执行以下操作：

var currentDir = @"D:\toto\titi\tata\";
var case1 = Path.GetFullPath(Path.Combine(currentDir, @"test.txt"));
var case2 = Path.GetFullPath(Path.Combine(currentDir, @".\..\..\test\test.txt"));
var case3 = Path.GetFullPath(Path.Combine(currentDir, @".\..\test\test.txt"));
var case4 = Path.GetFullPath(Path.Combine(currentDir, @".\..\..\..\test\test.txt"));
var case5 = Path.GetFullPath(Path.Combine(currentDir, @".\..\..\..\..\test\test.txt"));
var case6 = Path.GetFullPath(Path.Combine(currentDir, @"\\server\share\folder\test".TrimStart('\\')));

并检查指定文件的存在：

if (File.Exists(fileName))
{
  // ...
}

总而言之，你可以将你的方法改写成这样的东西（如果我理解你的问题）：

private void btnSearchFile_Click(object sender, EventArgs e)
{
  var currentDir = Environment.CurrentDirectory;
  var relPath1 = txtBoxSearchFile.Text.TrimStart('\\');
  var newPath = Path.GetFullPath(Path.Combine(currentDir, relPath1));
  if (File.Exists(newPath))
    txtBoxFoundFile.Text = newPath;
  else
    txtBoxFoundFile.Text = @"File not found";
}

如何解决c＃中的相对路径

1 个答案: