Write, WriteLine Procedures

Write, WriteLine Procedures

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Class

Microsoft.VisualBasic.FileSystem

Syntax

     Write(fileNumber, output)     WriteLine(fileNumber[, output]) 

fileNumber (required; Integer)

Any valid file number of a file opened with FileOpen

output (required for Write ; any)

A comma-delimited list of expressions, or a ParamArray, to be written to the file

Description

The Write and WriteLine procedures write data to a sequential file. The WriteLine version also appends line termination characters.

Usage at a Glance

• output can be a ParamArray array containing values to be written to the file indicated by fileNumber.

• The following table describes how the Write and WriteLine procedures handle certain types of data, regardless of the locale, to allow files to be read universally:

  Data type	Data written to file
  Numeric	Decimal separator is always written as a period (.)
  Boolean	#TRUE# or #FALSE#
  Date	#yyyy-mm-dd hh:mm:ss# (uses a 24-hour clock)
  Null	#NULL#
  Error	#ERROR errorcode#

  
  

• The Write and WriteLine procedures automatically delimit output fields with commas and surround string data with quotation marks.

• Data written to a file using the Write and WriteLine procedures is often read using the Input procedure.

• If no output arguments are supplied to the WriteLine procedure, only the line termination characters are written.

• These procedures do not support named arguments.

Version Differences

• There are many syntactical differences between the VB 6 Write statement and the .NET Write procedure.

• The WriteLine procedure is new with .NET as a partial replacement for the VB 6 Write statement.

• In Visual Basic 2005, the My.Computer.FileSystem object provides more robust access to file management features.

See Also

Input Procedure, Print, PrintLine Procedures