Article
11/18/2011

FileInfo Constructor

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

When it is called by trusted applications, initializes a new instance of the FileInfo class, which acts as a wrapper for a file path.

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

Syntax

'Declaration
<SecuritySafeCriticalAttribute> _
Public Sub New ( _
    fileName As String _
)

[SecuritySafeCriticalAttribute]
public FileInfo(
    string fileName
)

Parameters

fileName
Type: System.String
The fully qualified name of the new file, or the relative file name.

Exceptions

Exception	Condition
ArgumentNullException	fileName is nulla null reference (Nothing in Visual Basic).
SecurityException	The caller does not have the required permission.
ArgumentException	The file name is empty, contains only white spaces, or contains invalid characters.
UnauthorizedAccessException	Access to fileName is denied.
PathTooLongException	The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.
NotSupportedException	fileName contains a colon (:) in the middle of the string.

Remarks

Platform 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.

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.

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