When overridden in a derived class, gets a value indicating whether the current stream supports writing.
Assembly: mscorlib (in mscorlib.dll)
The following is an example of using the CanWrite property.
Imports System Imports System.IO Class TestRW Public Shared Sub Main() Dim fs As New FileStream("MyFile.txt", FileMode.OpenOrCreate, _ FileAccess.Write) If fs.CanRead And fs.CanWrite Then Console.WriteLine("MyFile.txt can be both written to and read from.") Else If fs.CanWrite Then Console.WriteLine("MyFile.txt is writable.") End If End If End Sub End Class 'This code outputs "MyFile.txt is writable." 'To get the output message "MyFile.txt can be both written to and read from.", 'change the FileAccess parameter to ReadWrite in the FileStream constructor.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.