SwedishIdentityNumbers 1.0.1

Based on the provided class definitions and their methods, here is an updated version of your README.md file:

SwedishIdentityNumbers

A .NET library for working with Swedish identity numbers.

Overview

The SwedishIdentityNumbers library provides a set of classes for working with Swedish identity numbers:

• Personnummer for personal identity numbers
• Samordningsnummer for coordination numbers
• Organisationsnummer for organization numbers

Each of these classes inherits from the abstract base class SwedishIdentityNumber, which provides common functionality for validating and working with identity numbers.

Installation

Install SwedishIdentityNumbers via NuGet:

dotnet add package SwedishIdentityNumbers

Or search for SwedishIdentityNumbers in the NuGet package manager in Visual Studio.

Usage

Create a Personnummer

using SwedishIdentityNumbers;

var personnummer = new Personnummer("8507301234"); // also allows 850730-1234

Get the Date of Birth (a DateOnly) from a Personnummer

var dateOfBirth = personnummer.DateOfBirth;

Try to create a Personnummer

using SwedishIdentityNumbers;

if (Personnummer.TryCreate("8507301234", out var personnummer)) // also allows 850730-1234
{
    // Successfully created
}

Create a Samordningsnummer

using SwedishIdentityNumbers;

var samordningsnummer = new Samordningsnummer("8507901234"); // also allows 850700-1234

Get the Date of Birth (a DateOnly) from a Samordningsnummer

var dateOfBirth = samordningsnummer.DateOfBirth;

Working with Organisationsnummer

using SwedishIdentityNumbers;

var organisationsnummer = new Organisationsnummer("5560360793");

Determine the Probable Swedish Company Form

var companyForm = organisationsnummer.ProbableSwedishCompanyForm;

Development

To work on SwedishIdentityNumbers, clone the repo and open SwedishIdentityNumbers.sln in Visual Studio or your preferred editor.

Testing

Run the tests in SwedishIdentityNumbers.Tests to ensure everything is working correctly.

License

SwedishIdentityNumbers is licensed under the MIT License. See the LICENSE file for details.