Path.GetTempFileName Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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)

Syntax

'Declaration
<SecuritySafeCriticalAttribute> _
Public Shared Function GetTempFileName As String

[SecuritySafeCriticalAttribute]
public static string GetTempFileName()

Return Value

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

Exceptions

Exception	Condition
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.

Remarks

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

 Silverlight for Windows Phone

 This member has a SecurityCriticalAttribute attribute on Silverlight for Windows Phone, because the attribute was present in Silverlight 3. 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.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

See Also

Reference

Path Class

System.IO Namespace

Other Resources

Isolated Storage