IsFileMapped Method

Tests whether a file name is mapped.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Function IsFileMapped( _
   ByVal fileName As String _
) As Boolean

'Usage
 
Dim instance As MappedFileProvider
Dim fileName As String
Dim value As Boolean
 
value = instance.IsFileMapped(fileName)

public bool IsFileMapped( 
   string fileName
)

public:
bool IsFileMapped( 
   String^ fileName
)

Parameters

fileName: A name of the file (in the root directory).
The value of this parameter cannot be null (Nothing in Visual Basic).

Return Value

Returns true if the is mapped to a file info; returns false otherwise.

Exceptions

Exception Description

Exception	Description
System.ArgumentException	One of the arguments provided to a method is not valid. This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.
System.ArgumentNullException	A `null` reference (`Nothing` in Visual Basic) is passed to a method that does not accept it as a valid argument. This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

System.ArgumentException

One of the arguments provided to a method is not valid.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

System.ArgumentNullException

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

The file name (fileName) must not be null or empty.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

MappedFileProvider Class
MappedFileProvider Members

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