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Path.GetTempFileName Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Creates a uniquely named, zero-byte temporary file on disk and returns the full path of that file.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

public static string GetTempFileName()

Return Value

Type: System.String
A String containing the full path of the temporary file.

ExceptionCondition
IOException

An I/O error occurs, such as no unique temporary file name is available.

- or -

This method was unable to create a temporary file.

This method creates a temporary file with a .TMP file extension.

The GetTempFileName method will raise an IOException if it is used to create more than 65535 files without deleting previous temporary files.

The GetTempFileName method will raise an IOException if no unique temporary file name is available. To resolve this error, delete all unneeded temporary files.

Version Notes

Windows Phone

 This member has a SecurityCriticalAttribute attribute. This attribute restricts this member to internal use. Application code that uses this member throws a MethodAccessException.

XNA Framework

 When this method is used in the XNA Framework, it throws a NotSupportedException exception.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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