Collector.Common.Validation.NationalIdentifier 2.0.1

dotnet add package Collector.Common.Validation.NationalIdentifier --version 2.0.1
NuGet\Install-Package Collector.Common.Validation.NationalIdentifier -Version 2.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Collector.Common.Validation.NationalIdentifier" Version="2.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Collector.Common.Validation.NationalIdentifier --version 2.0.1
#r "nuget: Collector.Common.Validation.NationalIdentifier, 2.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Collector.Common.Validation.NationalIdentifier as a Cake Addin
#addin nuget:?package=Collector.Common.Validation.NationalIdentifier&version=2.0.1

// Install Collector.Common.Validation.NationalIdentifier as a Cake Tool
#tool nuget:?package=Collector.Common.Validation.NationalIdentifier&version=2.0.1


A collection of string validation tools available as Nuget packages. Currently includes the following validation packages:

Validation subject Countries Nuget package name
National Identifiers (Social Security Numbers) Denmark, Finland, Norway, Sweden Collector.Common.Validation.NationalIdentifier


Download the package of choice from Nuget:

PM> install-package Collector.Common.Validation.NationalIdentifier


National Identifiers

Validate a number for a specific country using any official format (returns a bool):

var nationalIdentifier = "200301046835";
var validator = new SwedishNationalIdentifierValidator();
var result = validator.IsValid(nationalIdentifier);

// true


var nationalIdentifier = "200301046835";
var validator = NationalIdentifierValidator.GetValidator(CountryCode.SE);
var result = validator.IsValid(nationalIdentifier);

// true

Normalize national identifiers to a single format:

var nationalIdentifier = "20030104-6835";
var validator = new SwedishIdentifierValidator();
var result = validator.Normalize(nationalIdentifier);

// "200301046835"

Check for validity or normalize an identifier for any of the supported countries:

var result = NationalIdentifierValidator.IsValidInAnyCountry(nationalIdentifier);
var normalizedIdentifier = NationalIdentifierValidator.NormalizeForAnyCountry(nationalIdentifier);

Validate a property with data annotations:

public string NationalIdentifier { get; set; }

public string NationalIdentifier { get; set; }


Extensions are very welcome! Get in touch with the Solutions Team and open a pull request.


  • Thanks to Said Outgajjouft for the initial work on National Identifiers.
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
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NuGet packages

This package is not used by any NuGet packages.

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Version Downloads Last updated
2.0.1 6,089 12/19/2023
1.0.0 80,166 3/14/2018