# ApplicationPartAttribute

Package: [Microsoft.Orleans.Serialization.Abstractions](/orleans/docs/api/csharp/microsoft.orleans.serialization.abstractions/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Serialization.Abstractions) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization.Abstractions/Annotations.cs#L488)

```csharp
public sealed class ApplicationPartAttribute : Attribute
```

Specifies an assembly to be added as an application part.

## Constructors

- [ApplicationPartAttribute(string)](/orleans/docs/api/csharp/microsoft.orleans.serialization.abstractions/orleans.applicationpartattribute/constructors/constructor-string-977a66e7/)

## Properties

- [AssemblyName](/orleans/docs/api/csharp/microsoft.orleans.serialization.abstractions/orleans.applicationpartattribute/properties/assemblyname-a49b79e3/)