CopyToWritableFileInfo(IFileInfo,IWritableFileInfo,Int32) Method

Copies the file represented by a file info to a destination writable file info, specifying copy buffer size.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Function CopyToWritableFileInfo( _
   ByVal fileInfo As IFileInfo, _
   ByVal destinationWritableFileInfo As IWritableFileInfo, _
   ByVal copyBufferSize As Integer _
) As Long

'Usage
 
Dim fileInfo As IFileInfo
Dim destinationWritableFileInfo As IWritableFileInfo
Dim copyBufferSize As Integer
Dim value As Long
 
value = IFileInfoExtension.CopyToWritableFileInfo(fileInfo, destinationWritableFileInfo, copyBufferSize)

[Extension()]
public static long CopyToWritableFileInfo( 
   IFileInfo fileInfo,
   IWritableFileInfo destinationWritableFileInfo,
   int copyBufferSize
)

[Extension()]
public:
static int64 CopyToWritableFileInfo( 
   IFileInfo^ fileInfo,
   IWritableFileInfo^ destinationWritableFileInfo,
   int copyBufferSize
)

Parameters

fileInfo: The file info object that will perform the operation.
The value of this parameter cannot be null (Nothing in Visual Basic).
destinationWritableFileInfo: The writable file info into which the file will be copied.
The value of this parameter cannot be null (Nothing in Visual Basic).
copyBufferSize: The size of the copy buffer. This value must be greater than zero. The default size is 81920.
Valid values of this parameter are in the range from 1 to 2147483647 (Int32.MaxValue).

Return Value

Returns the number of bytes copied.

Exceptions

Exception	Description
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.ArgumentOutOfRangeException	The value of an argument is outside the allowable range of values as defined by the invoked method. 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.IO.DirectoryNotFoundException	Part of a file or directory cannot be found. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.
System.IO.FileNotFoundException	An attempt to access a file that does not exist on disk has failed. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.
System.IO.IOException	An I/O error has occurred. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.
System.NotSupportedException	An invoked method is not supported at all, or is not supported with the parameters used to create the object.
System.IO.PathTooLongException	A path or fully qualified file name is longer than the system-defined maximum length. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.
System.Security.SecurityException	A security error was detected. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.
System.UnauthorizedAccessException	The operating system has denied access because of an I/O error or a specific type of security error. This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.

Remarks

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

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

IFileInfoExtension Class
IFileInfoExtension Members
Overload List

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