Realm 12.2.0

.NET 6.0 This package targets .NET 6.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.6 This package targets .NET Framework 4.6. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Realm --version 12.2.0                

                    
                

            
NuGet\Install-Package Realm -Version 12.2.0
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="Realm" Version="12.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add Realm --version 12.2.0                

                    
                

            
#r "nuget: Realm, 12.2.0"
#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 Realm as a Cake Addin
#addin nuget:?package=Realm&version=12.2.0

// Install Realm as a Cake Tool
#tool nuget:?package=Realm&version=12.2.0

<picture> <source srcset="./media/logo-dark.svg" media="(prefers-color-scheme: dark)" alt="realm by MongoDB"> <img src="./media/logo.svg" alt="realm by MongoDB"> </picture>

Realm is a mobile database that runs directly on phones, tablets or wearables. It supports all major mobile and desktop operating systems, such as iOS, Android, UWP, macOS, Linux, and Windows. For a full list of supported platforms and their versions, check out the Platform and Framework Compatibility section in the documentation.

Features

  • Mobile-first: Realm is the first database built from the ground up to run directly inside phones, tablets, and wearables.
  • Simple: Data is directly exposed as objects and queryable by code, removing the need for ORM's riddled with performance & maintenance issues. Plus, we've worked hard to keep our API down to just a few common classes: most of our users pick it up intuitively, getting simple apps up & running in minutes.
  • Modern: Realm supports relationships, generics, vectorization and modern C# idioms.
  • Fast: Realm is faster than even raw SQLite on common operations while maintaining an extremely rich feature set.
  • Device Sync: Makes it simple to keep data in sync across users, devices, and your backend in real-time. Get started for free with a template application and create the cloud backend.

Getting Started

Model definition

Define a persistable model by inheriting from IRealmObject. The Realm source generator will generate an implementation for most of the functionality, so you only need to specify the properties you want to persist:

public partial class Person : IRealmObject
{
    [PrimaryKey]
    public ObjectId Id { get; private set; } = ObjectId.GenerateNewId();

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public DateTimeOffset Birthday { get; set; }

    // You can define constructors as usual
    public Person(string firstName, string lastName)
    {
        FirstName = firstName;
        LastName = lastName;
    }
}

Open a Realm file

Open a Realm instance by calling Realm.GetInstance:

// You can provide a relative or an absolute path to the Realm file or let
// Realm use the default one.
var realm = Realm.GetInstance("people.realm");

CRUD operations

Add, read, update, and remove objects by calling the corresponding API on the Realm instance:

// Always mutate the Realm instance in a write transaction
realm.Write(() =>
{
    realm.Add(new Person("John", "Smith"));
});

var peopleWithJ = realm.All<Person>().Where(p => p.FirstName.StartsWith("J"));

// All Realm collections and objects are reactive and implement INotifyCollectionChanged/INotifyPropertyChanged

peopleWithJ.AsRealmCollection().CollectionChanged += (s, e) =>
{
    // React to notifications
};

For more examples, see the detailed instructions in our User Guide to add Realm to your solution.

Documentation

The documentation can be found at mongodb.com/docs/atlas/device-sdks/sdk/dotnet/. The API reference is located at mongodb.com/docs/realm-sdks/dotnet/latest/.

Getting Help

  • Need help with your code?: Look for previous questions on the #realm tag — or ask a new question. You can also check out our Community Forum where general questions about how to do something can be discussed.
  • Have a bug to report? Open an issue. If possible, include the version of Realm, a full log, the Realm file, and a project that shows the issue.
  • Have a feature request? Open an issue. Tell us what the feature should do, and why you want the feature.
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 is compatible.  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 net46 is compatible.  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 is compatible. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios is compatible. 
Xamarin.Mac xamarinmac is compatible. 
Xamarin.TVOS xamarintvos is compatible. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (39)

Showing the top 5 NuGet packages that depend on Realm:

Package Downloads
ppy.osu.Game

Package Description
Iridium360.Connect.Framework

This framework allows you to bind your Android or iOS device with i360RockSTAR tracker
ItEnterprise.Common.CoreStandard

ItEnterprise Common.CoreStandard for Xamarin Forms
Arc4u.Standard.Diagnostics.Serilog.Sinks.RealmDb

Package Description
ItEnterprise.WmsStandard

ItEnterprise WmsStandard for Xamarin Forms

GitHub repositories (7)

Showing the top 5 popular GitHub repositories that depend on Realm:

Repository Stars
ppy/osu
rhythm is just a *click* away!
realm/realm-dotnet
Realm is a mobile database: a replacement for SQLite & ORMs
sgermosen/xReader
XML, NEWS, RSS & Scrapping Reader maked in Xamarin, for educational purpose.
Piotrekol/CollectionManager
An extensive tool for creating, editing, and exporting of osu! collections.
realm/realm-draw
The official Realm Draw app used in promotional videos
Version Downloads Last updated
20.0.0 10,389 9/9/2024
12.4.1 6,363 9/16/2024
12.4.0 14,019 8/25/2024
12.3.0 30,919 7/20/2024
12.2.0 46,903 5/22/2024
12.1.0 12,243 5/1/2024
12.0.0 12,150 4/17/2024
11.7.0 89,424 2/5/2024
11.6.1 87,707 11/17/2023
11.6.0 21,920 11/4/2023
11.5.0 265,445 9/16/2023
11.4.0 31,106 8/16/2023
11.3.0 45,390 7/26/2023
11.2.0 16,811 7/8/2023
11.1.2 108,947 6/20/2023
11.1.1 7,245 6/19/2023
11.1.0 2,734 6/17/2023
11.0.0 46,239 5/8/2023
10.21.1 43,282 4/21/2023
10.21.0 24,460 3/24/2023
10.20.0 90,651 2/10/2023
10.19.0 35,591 1/6/2023
10.18.0 137,341 11/2/2022
10.17.0 93,315 10/6/2022
10.16.0 12,861 10/3/2022
10.15.1 110,374 8/8/2022
10.15.0 5,702 8/5/2022
10.14.0 186,207 6/2/2022
10.13.0 28,325 5/18/2022
10.12.0 18,388 5/5/2022
10.11.2 35,118 4/21/2022
10.11.1 21,776 3/31/2022
10.11.0 5,568 3/28/2022
10.10.0 96,217 2/28/2022
10.9.0 81,083 1/21/2022
10.8.0 38,401 1/17/2022
10.7.1 106,263 11/20/2021
10.7.0 7,232 11/10/2021
10.6.0 168,169 9/30/2021
10.5.1 18,324 9/22/2021
10.5.0 31,052 9/9/2021
10.4.1 3,810 9/3/2021
10.4.0 11,381 8/31/2021
10.3.0 140,157 7/7/2021
10.2.1 27,135 7/1/2021
10.2.0 28,427 6/15/2021
10.2.0-beta.2 777 5/5/2021
10.2.0-beta.1 360 4/12/2021
10.1.4 19,966 5/12/2021
10.1.3 23,122 4/29/2021
10.1.2 29,683 3/19/2021
10.1.1 22,678 2/25/2021
10.1.0 15,513 2/9/2021
10.0.1 7,657 2/2/2021
10.0.0-beta.6 442 1/26/2021
10.0.0-beta.5 650 1/19/2021 10.0.0-beta.5 is deprecated because it has critical bugs.
10.0.0-beta.3 1,164 12/10/2020
10.0.0-beta.2 1,485 11/4/2020
10.0.0-beta.1 744 10/16/2020
10.0.0-alpha.43 371 10/9/2020
10.0.0-alpha.34 481 10/4/2020
5.1.3 26,486 2/10/2021
5.1.2 84,488 10/20/2020
5.1.1 28,005 10/2/2020
5.1.0 7,523 9/30/2020
5.0.1 10,856 9/9/2020
4.3.0 277,984 2/5/2020
4.2.0 70,312 10/8/2019
4.1.0 87,677 8/6/2019
4.0.1 20,394 6/27/2019
4.0.0 6,329 6/14/2019
3.4.0 103,819 1/9/2019
3.3.0 26,464 11/8/2018
3.2.1 48,774 9/27/2018
3.2.0 16,954 9/4/2018
3.1.0 33,109 7/4/2018
3.0.0 110,105 4/16/2018
2.2.0 14,650 3/22/2018
2.1.0 55,246 11/13/2017
2.0.0 18,423 10/17/2017
2.0.0-rc1 2,631 10/3/2017
1.6.0 35,593 8/15/2017
1.5.0 18,034 6/20/2017
1.4.0 14,952 5/19/2017
1.3.0 3,765 5/16/2017
1.2.1 8,006 5/1/2017
1.2.0 6,006 4/4/2017
1.1.1 7,551 3/15/2017
1.1.0 3,726 3/3/2017
1.0.4 4,954 2/21/2017
1.0.3 17,111 2/14/2017
0.82.1 18,524 1/27/2017
0.82.0 3,439 1/23/2017
0.81.0 5,538 12/15/2016
0.80.0 11,657 10/27/2016
0.78.1 20,642 9/15/2016
0.78.0 2,784 9/11/2016
0.77.2 5,657 8/11/2016
0.77.1 3,217 7/28/2016
0.76.1 6,109 6/15/2016
0.76.0 3,463 6/9/2016
0.75.0 3,285 6/3/2016
0.74.1 5,944 5/10/2016

## 12.2.0 (2024-05-22)

### Enhancements
* Added support for `Migration.FindInNewRealm` which is a helper that allows you to lookup the object in the post-migration Realm that corresponds to an object from the pre-migration Realm. (Issue [#3600](https://github.com/realm/realm-dotnet/issues/3600))
* Added `[System.Reflection.Obfuscation]` on the generated `RealmSchema` field to improve compatibility with obfuscation tools that change field and property names of generated classes. (Issue [#3574](https://github.com/realm/realm-dotnet/issues/3574))
* Added support for list and dictionaries of `RealmValue` (`IList<RealmValue>` and `IDictionary<string, RealmValue>`) to be contained in a `RealmValue`. Lists and dictionaries can contain an arbitrary number of collections themselves. It is possible to convert an existing collection to a `RealmValue` using the new static methods `RealmValue.List` and `RealmValue.Dictionary` or using the implicit operators if converting from common types like `List`, `RealmValue[]` or `Dictionary`. Finally, it is possible to obtain the contained collections by using the new conversion method `AsList` and `AsDictionary`. For example:

 ```csharp
 var list = new List<RealmValue> { 1, true, "stringVal" };

 var rvo = realm.Write(() =>
 {
     return realm.Add(new RealmValueObject { RealmValueProperty = list});
 });

 var retrievedList = rvo.RealmValueProperty.AsList();
 ```
 (PR [#3441](https://github.com/realm/realm-dotnet/pull/3441))

### Fixed
* Accessing `App.CurrentUser` from within a `User.Changed` notification would deadlock. (Core 14.7.0)
* Inserting the same link to the same key in a dictionary more than once would incorrectly create multiple backlinks to the object. This did not appear to cause any crashes later, but would have affected the value returned by `RealmObject.BacklinksCount` and queries involving backlinks counts. (Core 14.7.0)
* Fixed an issue that would cause `RealmObject.DynamicApi.GetList/Set/Dictionary` to fail when the collection contains primitive values. (Issue [#3597](https://github.com/realm/realm-dotnet/issues/3597))

### Compatibility
* Realm Studio: 15.0.0 or later.

### Internal
* Using Core 14.7.0.