Initializing help system before first use

XPRBreadarrline Method (StreamReader, Int32, String, String[], Int32)

Read a line of an array from a data file.

Namespace:   BCL
Assembly:  xprbdn (in xprbdn.dll) Version: 44.01.01
Syntax
C# 
public int XPRBreadarrline(
	StreamReader fileStreamIn,
	int maxlen,
	string format,
	out string[] output,
	int numData
)
VB 
Public Function XPRBreadarrline ( 
	fileStreamIn As StreamReader,
	maxlen As Integer,
	format As String,
	<OutAttribute> ByRef output As String(),
	numData As Integer
) As Integer

Parameters

fileStreamIn
Type:  System.IO.StreamReader
The open StreamReader to read the data from.
maxlen
Type:  System.Int32
The maximum length of data to read.
format
Type:  System.String
The format to read the data in. This is a string made up of the following formats, seperated by any seperating characters. The format must be exact with respect to spacing (if there are 0+ spaces between the entries then a space " " must be included in the format string). See the BCL example programs for examples of this.
  • {g} - A double value.
  • {i} - An integer value.
  • {t} or {T} - A string value.
  • {s} - A string within single quotes.
  • {S} - A string within double quotes.
output
Type:  System.String
The out array, in this case if all requested objects were strings you could use this function, otherwise use the more general function that outputs an object[] object.
numData
Type:  System.Int32
The number of times to read the format string. For instance if the format string was "{s} , {S} ; {t} , " and the numdata=2 then the resultant format string to be read would be "{s} , {S} ; {t} , {s} , {S} ; {t}" as the method strips everything after the last occurence of "}".

Return Value

Type:  Int32
The integer number of items read, -1 on error.
Examples
XPRBprob prob = new XPRBprob("NewProb"); FileStream file = new FileStream("FileReadString.txt", FileMode.Open, FileAccess.Read); fileStreamIn = new StreamReader(file); outobjStr = new string[6]; prob.XPRBreadarrline(fileStreamIn, 200, "{S}, ", out outobjStr, 6); fileStreamIn.Close(); file.Close();
See Also
Parent Topic XPRBreadarrline Method

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