Question

我可以将pathAndFilename转换为小写，但是就像我需要一种方法告诉OpenRead不区分大小写。

// pathAndFileName has been converted with .ToLower()
using (FileStream fileStream = File.OpenRead(pathAndFileName))
{
    Bitmap bitmap = new Bitmap(fileStream);
    Image image = (Image)bitmap;
}

Answer 1

如果您尝试在运行Linux或其他操作系统（其中文件名区分大小写）的计算机上访问文件，则可以（未测试！）一种解决方法来使用您拥有的文件名作为在文件中列出文件的模式。目录。请注意，可能存在多个具有相同名称和不同拼写形式的文件。在这种情况下，此辅助函数将引发异常。

static void Main(string[] args)
{
    string pathAndFileName = ..your file name...;
    string resultFileName = GetActualCaseForFileName(pathAndFileName);

    using (FileStream fileStream = File.OpenRead(resultFileName))
    {
        Bitmap bitmap = new Bitmap(fileStream);
        Image image = (Image)bitmap;
    }    


    Console.WriteLine(resultFileName);
}

private static string GetActualCaseForFileName(string pathAndFileName)
{
    string directory = Path.GetDirectoryName(pathAndFileName);
    string pattern = Path.GetFileName(pathAndFileName);
    string resultFileName;

    // Enumerate all files in the directory, using the file name as a pattern
    // This will list all case variants of the filename even on file systems that
    // are case sensitive
    IEnumerable<string> foundFiles = Directory.EnumerateFiles(directory, pattern);

    if (foundFiles.Any())
    {
        if (foundFiles.Count() > 1)
        {
            // More than two files with the same name but different case spelling found
            throw new Exception("Ambiguous File reference for " + pathAndFileName);
        }
        else
        {
            resultFileName = foundFiles.First();
        }
    }
    else
    {
        throw new FileNotFoundException("File not found" + pathAndFileName, pathAndFileName);
    }

    return resultFileName;
}

Answer 2

我的灵感来自包含 GetActualCaseForFileName() 的答案，但它不适用于我的 Xamarin iOS 项目。

我创建了以下代码，这似乎对我有用：

        {
          "node": {
            "name": "v2.0.1",
            "target": {
              "oid": "85fe69df20062aafeea7593c45c1785f44208252"
            }
          }
        }

打开文件时忽略路径和文件名中的大小写

2 个答案: