# EventSequenceToken.EventIndex

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.providers.streams.common.eventsequencetoken/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.providers.streams.common.eventsequencetoken/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/Common/EventSequenceToken.cs)

```csharp
[Orleans.Id(1)]
public override int EventIndex
```

Gets the number of events in batch prior to this event