LuhnDotNet 0.2.0

Setup

Install LuhnDotNet package

1. Open a console and switch to the directory, containing your project file.

2. Use the following command to install version 0.2.0 of the LuhnDotNet package:

   dotnet add package LuhnDotNet -v 0.2.0 -f <FRAMEWORK>
   

3. After the completition of the command, look at the project file to make sure that the package is successfuly installed.

   You can open the .csproj file to see the added package reference:

   <ItemGroup>
     <PackageReference Include="LuhnDotNet" Version="0.2.0" />
   </ItemGroup>
   

Remove LuhnDotNet package

1. Open a console and switch to the directory, containing your project file.

2. Use the following command to remove the LuhnDotNet package:

   dotnet remove package LuhnDotNet
   

3. After the completition of the command, look at the project file to make sure that the package is successfuly removed.

   You can open the .csproj file to check the deleted package reference.

Usage

Compute the Luhn check digit

using System;
using System.Collections.Generic;
using LuhnDotNet;

namespace Example1
{
  public class Program
  {
    public static void Main(string[] args)
    {
      var checkDigit = Luhn.ComputeLuhnCheckDigit("37828224631000");
      //// Must be 5
      Console.WriteLine(checkDigit);
    }
  }
}

Compute the Luhn number

using System;
using System.Collections.Generic;
using LuhnDotNet;

namespace Example2
{
  public class Program
  {
    public static void Main(string[] args)
    {
      var luhnNumber = Luhn.ComputeLuhnNumber("37828224631000");
      //// Must be 378282246310005
      Console.WriteLine(luhnNumber);
    }
  }
}

Validate Luhn number

using System;
using System.Collections.Generic;
using LuhnDotNet;

namespace Example3
{
  public class Program
  {
    public static void Main(string[] args)
    {
      var isValid = Luhn.IsValid("378282246310005");
      //// Must be 'true'
      Console.WriteLine(isValid);
    }
  }
}

Validate number and corresponding Luhn check digit

using System;
using System.Collections.Generic;
using LuhnDotNet;

namespace Example4
{
  public class Program
  {
    public static void Main(string[] args)
    {
      var isValid = Luhn.IsValid("37828224631000", 5);
      //// Must be 'true'
      Console.WriteLine(isValid);
    }
  }
}