更好的方法来检查,如果路径是文件或目录? [英] Better way to check if Path is a File or a Directory?
问题描述
我处理目录和文件的树视图,用户可以选择一个文件或目录,然后用它做什么。这就要求我有一种方法,它执行不同的动作,如果他们选择了一个文件,或目录。
I am processing a TreeView of directories and files, users can select either a file, or a directory and then do something with it. This requires me to have a method which performs different actions if they have selected a file, or a directory.
目前,我正在做这样的事情,以确定该路径是文件或目录:
At the moment I am doing something like this to determine if the path is a file or a directory:
bool bIsFile = false;
bool bIsDirectory = false;
try
{
string[] subfolders = Directory.GetDirectories(strFilePath);
bIsDirectory = true;
bIsFile = false;
}
catch(System.IO.IOException)
{
bIsFolder = false;
bIsFile = true;
}
我不禁感到有一种更好的方式来做到这一点!但是,我找不到任何.NET方法,我可以问:这是路径的目录或文件?。
I cannot help to feel that there is a better way to do this! But I cannot find any .Net methods which I can ask "Is this path a directory or a file ?".
有什么建议?
谢谢!
推荐答案
从的如何判断路径是文件或目录:
// get the file attributes for file or directory
FileAttributes attr = File.GetAttributes(@"c:\Temp");
//detect whether its a directory or file
if ((attr & FileAttributes.Directory) == FileAttributes.Directory)
MessageBox.Show("Its a directory");
else
MessageBox.Show("Its a file");
更新.NET 4.0 +
每下面的评论,如果您是在.NET 4.0或更高版本(和最高性能并不重要),你可以写code在一个更清洁的方式:
Update for .NET 4.0+
Per the comments below, if you are on .NET 4.0 or later (and maximum performance is not critical) you can write the code in a cleaner way:
if (attr.HasFlag(FileAttributes.Directory))
MessageBox.Show("Its a directory");
else
MessageBox.Show("Its a file");
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