IO Library for .NET core

Fixed position creator class

This class helps you to create files or reports with fixed row lengths and columns at fixed positions.

The class you create presents the row in your file or report. Example of a class:

    [Row(Length = 80)]
    public class Line
    {
        [Column(Start = 1, End = 30)]
        public string Column1 { get; set; }
        [Column(Start = 35, End = 45, Format = "dd-MM-yyyy")]
        public DateTime Column2 { get; set; }
    }

This class creates a row with length of 80 characters. Column1 on position 1 until 30 and Column2 on position 35 until 45. Column2 also uses a format. The format syntax is the same as from string.Format.

var writer = new FixedWriter<Line>();
var rows = writer.ToFixedPositionString(lines);

In this example lines is a collection of type Line.

The idea for creating this library started when I needed a fixed position file to import data into oracle.