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ASP TextStream Object

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The TextStream object is used to access the contents of a text file.


Examples

Read textfile
This example demonstrates how to use the OpenTextFile method of the FileSystemObject to create a TextStream Object. The ReadAll method of the TextStream Object reads from the opened text file.  

Read only a part of  a textfile
This example demonstrates how to only read a part of a TextStream file.

Read one line of a textfile
This example demonstrates how to read one line from a TextStream file.

Read all lines from a textfile
This example demonstrates how to read all the lines from a TextStream file.

Skip a part of a textfile
This example demonstrates how to skip a specified number of characters when reading the TextStream file.

Skip a line of a textfile
This example demonstrates how to skip a line when reading the TextStream file.

Return line-number
This example demonstrates how to return the current line number in a TextStream file.

Get column number
This example demonstrates how to get the column number of the current character in a file.


The TextStream Object

The TextStream object is used to access the contents of text files.

The following code creates a text file (c:\test.txt) and then writes some text to the file (the variable f is an instance of the TextStream object):

<% 
dim fs, f 
set fs=Server.CreateObject("Scripting.FileSystemObject") 
set f=fs.CreateTextFile("c:\test.txt",true) 
f.WriteLine("Hello World!")
f.Close
set f=nothing
set fs=nothing
%>

To create an instance of the TextStream object you can use the CreateTextFile or OpenTextFile methods of the FileSystemObject object, or you can use the OpenAsTextStream method of the File object.

The TextStream object's properties and methods are described below:

Properties

Property Description
AtEndOfLine Returns true if the file pointer is positioned immediately before the end-of-line marker in a TextStream file, and false if not
AtEndOfStream Returns true if the file pointer is at the end of a TextStream file, and false if not
Column Returns the column number of the current character position in an input stream
Line Returns the current line number in a TextStream file

Methods

Method Description
Close Closes an open TextStream file
Read Reads a specified number of characters from a TextStream file and returns the result
ReadAll Reads an entire TextStream file and returns the result
ReadLine Reads one line from a TextStream file and returns the result
Skip Skips a specified number of characters when reading a TextStream file
SkipLine Skips the next line when reading a TextStream file
Write Writes a specified text to a TextStream file
WriteLine Writes a specified text and a new-line character to a TextStream file
WriteBlankLines Writes a specified number of new-line character to a TextStream file


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From http://www.w3schools.com (Copyright Refsnes Data)