C＃从DirectoryNotFoundException获取目录名称

public static class DirectoryNotFoundExceptionExtentions
{
    public static string GetPath(this DirectoryNotFoundException dnfe)
    {
        System.Text.RegularExpressions.Regex pathMatcher = new System.Text.RegularExpressions.Regex(@\"[^\']+\");
        return pathMatcher.Matches(dnfe.Message)[1].Value;
    }
}

catch (DirectoryNotFoundException dnfe)
{
   Console.WriteLine(dnfe.GetPath()); 
}   

Message

Directory.Exists

catch (DirectoryNotFoundException e)
{
    // Result will be: Could not find a part of the path \"C:\\incorrect\\path\".
    Console.WriteLine(e.Message);

    // Result will be: C:\\incorrect\\path
    Console.WriteLine(e.Message
        .Replace(\"Could not find a part of the path \\\"\", \"\")
        .Replace(\"\\\".\", \"\"));
}

FileNotFoundException

DirectoryNotFoundException

// ... somewhere in some method that\'s about to search a directory.

var dirName = directories[i]; // or something -- how do you get it before you pass it to DirectoryInfo?

try
{
    SearchDirectory(dirName); // or a block of code that does the work
}
catch(Exception e)
{
    // at this point, you know dirName. You can log it, add it to a list of erroring
    // directories, or whatever. You could throw here, or swallow the error after logging it, etc.
}

Debug -> Exceptions

Thrown

Common Language Runtime Exceptions