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Path.GetTempFileName Method

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 ()
public static String GetTempFileName ()
public static function GetTempFileName () : String
Not applicable.

Return Value

A String containing the full path of the temporary file.

Exception typeCondition

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.

For a list of common I/O tasks, see Common I/O Tasks.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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