# CosmosGrainStorageOptions.StateFieldsToIndex

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.persistence.cosmos/orleans.persistence.cosmos.cosmosgrainstorageoptions/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.persistence.cosmos/orleans.persistence.cosmos.cosmosgrainstorageoptions/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Azure/Orleans.Persistence.Cosmos/CosmosStorageOptions.cs)

```csharp
public List<string> StateFieldsToIndex
```

List of JSON path strings. Each entry on this list represents a property in the State Object that will be included in the document index. The default is to not add any property in the State object.