# Index

> The index of this block node within the list of blocks in the context node.

## Definition

* **Type:** Property
* **Namespace:** [Unity.GraphToolkit.Editor](/engine/6000.7/script-reference/unity/graphtoolkit/editor.md)
* **Assembly:** UnityEditor

```csharp
public int Index { get; }
```

### Remarks

The index reflects the block's position in the parent [BlockNode.ContextNode](/engine/6000.7/script-reference/unity/graphtoolkit/editor/blocknode/contextnode.md)'s block list. The index is zero-based and determines the order in which blocks are displayed.