# PlacementAttribute

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

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Core.Abstractions) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/Placement/PlacementAttribute.cs#L13)

```csharp
public abstract class PlacementAttribute : Attribute, IGrainPropertiesProviderAttribute
```

Base for all placement policy marker attributes.

## Properties

- [PlacementStrategy](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.placement.placementattribute/properties/placementstrategy-616731ff/)

## Methods

- [Populate(IServiceProvider, Type, GrainType, Dictionary<string, string>)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.placement.placementattribute/methods/populate-system-iserviceprovider-system-type-orleans-runtime-graintype-system-co-bc1635f0/)