CreateC#ClassInPowerShell

<#
    Define a class in C# within PowerShell
    Instantiate it in PowerShell
    Invoke it in PowerShell
#>

$FileDefinitions = @'
using System;

namespace FileDefinitions {
    public class FieldFormat {
        public FieldFormat(string fieldName, int fieldOffset, int fieldLength) {
            FieldName = fieldName;
            FieldOffset = fieldOffset;
            FieldLength = fieldLength;
        }

        public void ShowFieldContent() {
            Console.WriteLine(String.Format("Fields in record: [{0}];[{1}];[{2}]",
                FieldName, FieldOffset, FieldLength));
        }

        public string FieldName {get;set;}
        private int FieldOffset {get;set;}
        public int FieldLength {get;set;}
    }
}
'@

Add-Type -TypeDefinition $FileDefinitions

$fieldMetadata = New-Object FileDefinitions.FieldFormat("ShoeSize", "2033", "10")
$fieldMetadata.ShowFieldContent()