WriteAllText(IWritableFileInfo,String,Boolean,Encoding) Method

Visual Basic
C#
C++/CLI

'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Sub WriteAllText( _
   ByVal writableFileInfo As IWritableFileInfo, _
   ByVal text As String, _
   ByVal append As Boolean, _
   ByVal encoding As Encoding _
)

'Usage
 
Dim writableFileInfo As IWritableFileInfo
Dim text As String
Dim append As Boolean
Dim encoding As Encoding
 
IWritableFileInfoExtension.WriteAllText(writableFileInfo, text, append, encoding)

[Extension()]
public static void WriteAllText( 
   IWritableFileInfo writableFileInfo,
   string text,
   bool append,
   Encoding encoding
)

[Extension()]
public:
static void WriteAllText( 
   IWritableFileInfo^ writableFileInfo,
   String^ text,
   bool append,
   Encoding^ encoding
)

Parameters

writableFileInfo: The writable file info object that will perform the operation.
The value of this parameter cannot be null (Nothing in Visual Basic).
text: Text to be written to file.
The value of this parameter cannot be null (Nothing in Visual Basic).
append: True to append to the file contents; False to overwrite the file contents. Default is False.
encoding: What encoding to use when writing to file.
The value of this parameter cannot be null (Nothing in Visual Basic).

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.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.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.

If the file does not already exist, the method creates it.

This method is similar to FileSystem.WriteAllText Method for normal (operating system) files.

The overloads of this method that do not specify the encoding use UTF-8 encoding to write to the file. To specify a different encoding, use aan appropriate overload of this method.

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.

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

Reference

IWritableFileInfoExtension Class
IWritableFileInfoExtension Members
Overload List