Determines whether the specified file exists.
public: static bool Exists(System::String ^ path);
public static bool Exists (string path);
static member Exists : string -> bool
Public Shared Function Exists (path As String) As Boolean
true if the caller has the required permissions and
path contains the name of an existing file; otherwise,
false. This method also returns
null, an invalid path, or a zero-length string. If the caller does not have sufficient permissions to read the specified file, no exception is thrown and the method returns
false regardless of the existence of
The following example determines if a file exists.
string curFile = @"c:\temp\test.txt"; Console.WriteLine(File.Exists(curFile) ? "File exists." : "File does not exist.");
Dim curFile As String = "c:\temp\test.txt" Console.WriteLine(If(File.Exists(curFile), "File exists.", "File does not exist."))
The Exists method should not be used for path validation, this method merely checks if the file specified in
path exists. Passing an invalid path to Exists returns
false. To check whether the path contains any invalid characters, you can call the GetInvalidPathChars method to retrieve the characters that are invalid for the file system. You can also create a regular expression to test the whether the path is valid for your environment. For examples of acceptable paths, see File.
To check if a directory exists, see Directory.Exists.
path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.
path describes a directory, this method returns
false. Trailing spaces are removed from the
path parameter before determining if the file exists.
The Exists method returns
false if any error occurs while trying to determine if the specified file exists. This can occur in situations that raise exceptions such as passing a file name with invalid characters or too many characters, a failing or missing disk, or if the caller does not have permission to read the file.