OpenAsTextStream Method

Opens a specified file and returns a TextStream object that can be used to read from, write to, or append to the file.

object.OpenAsTextStream([iomode, [format]]) 

Arguments

object

Required. Always the name of a File object.

iomode

Optional. Indicates input/output mode. Can be one of three constants: ForReading, ForWriting, or ForAppending.

format

Optional. One of three Tristate values used to indicate the format of the opened file. If omitted, the file is opened as ASCII.

Settings

The iomode argument can have any of the following settings:

The format argument can have any of the following settings:

Remarks

The OpenAsTextStream method provides the same functionality as the OpenTextFile method of the FileSystemObject. In addition, the OpenAsTextStream method can be used to write to a file.

The following code illustrates the use of the OpenAsTextStream method:

[JScript]
function TextStreamTest( )
{
   var fso, f, ts, s;
   var ForReading = 1, ForWriting = 2, ForAppending = 8;
   var TristateUseDefault = -2, TristateTrue = -1, TristateFalse = 0;
   fso = new ActiveXObject("Scripting.FileSystemObject");
   fso.CreateTextFile( "test1.txt" );           // Create a file.
   f = fso.GetFile("test1.txt");
   ts = f.OpenAsTextStream(ForWriting, TristateUseDefault);
   ts.Write( "Hello World" );
   ts.Close( );
   ts = f.OpenAsTextStream(ForReading, TristateUseDefault);
   s = ts.ReadLine( );
   ts.Close( );
   return(s);
}
[VBScript]
Function TextStreamTest
   Const ForReading = 1, ForWriting = 2, ForAppending = 8
   Const TristateUseDefault = -2, TristateTrue = -1, TristateFalse = 0
   Dim fso, f, ts
   Set fso = CreateObject("Scripting.FileSystemObject")
   fso.CreateTextFile "test1.txt"   ' Create a file.
   Set f = fso.GetFile("test1.txt")
   Set ts = f.OpenAsTextStream(ForWriting, TristateUseDefault)
   ts.Write "Hello World"
   ts.Close
   Set ts = f.OpenAsTextStream(ForReading, TristateUseDefault)
   TextStreamTest = ts.ReadLine
   ts.Close
End Function