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Path.InvalidPathChars Field

Definition

Caution

Please use GetInvalidPathChars or GetInvalidFileNameChars instead.

Caution

Path.InvalidPathChars has been deprecated. Use GetInvalidPathChars or GetInvalidFileNameChars instead.

Provides a platform-specific array of characters that cannot be specified in path string arguments passed to members of the Path class.

C#
[System.Obsolete("Please use GetInvalidPathChars or GetInvalidFileNameChars instead.")]
public static readonly char[] InvalidPathChars;
C#
[System.Obsolete("Path.InvalidPathChars has been deprecated. Use GetInvalidPathChars or GetInvalidFileNameChars instead.")]
public static readonly char[] InvalidPathChars;
C#
public static readonly char[] InvalidPathChars;

Field Value

Char[]
Attributes

Examples

The following example demonstrates the use of the InvalidPathChars property.

C#
Console.WriteLine("Path.AltDirectorySeparatorChar={0}",
    Path.AltDirectorySeparatorChar);
Console.WriteLine("Path.DirectorySeparatorChar={0}",
    Path.DirectorySeparatorChar);
Console.WriteLine("Path.PathSeparator={0}",
    Path.PathSeparator);
Console.WriteLine("Path.VolumeSeparatorChar={0}",
    Path.VolumeSeparatorChar);

Console.Write("Path.GetInvalidPathChars()=");
foreach (char c in Path.GetInvalidPathChars())
    Console.Write(c);
Console.WriteLine();
// This code produces output similar to the following:
// Note that the InvalidPathCharacters contain characters
// outside of the printable character set.
//
// Path.AltDirectorySeparatorChar=/
// Path.DirectorySeparatorChar=\
// Path.PathSeparator=;
// Path.VolumeSeparatorChar=:

Remarks

The array returned from this method is not guaranteed to contain the complete set of characters that are invalid in file and directory names. The full set of invalid characters can vary by file system. Refer to the GetInvalidPathChars() remarks to learn what the set of characters returned by this field is.

Caution

Do not use InvalidPathChars if you think your code might execute in the same application domain as untrusted code. InvalidPathChars is an array, so its elements can be overwritten. If untrusted code overwrites elements of InvalidPathChars, it might cause your code to malfunction in ways that could be exploited.

Applies to

Product Versions (Obsolete)
.NET (Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9)
.NET Framework 1.1 (2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1)
.NET Standard (2.0, 2.1)

See also