# LegacyGrainId.IsLongKey

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.legacygrainid/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.legacygrainid/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/IDs/Legacy/LegacyGrainId.cs#L130)

```csharp
public bool IsLongKey
```