# m_ThreadIndex

> ""Obsolete. Use NativeParallelHashMap<TKey, TValue>.ParallelWriter.ThreadIndex instead.

## Definition

* **Type:** Property
* **Namespace:** [Unity.Collections](/engine/6000.7/script-reference/unity/collections.md)
* **Assembly:** UnityEngine.ManagedKernelModule

> **Warning:**
>
> **Deprecated.** 'm\_ThreadIndex' has been deprecated; use 'ThreadIndex' instead.
>
> **Upgrade to** [NativeParallelHashMap\<TKey, TValue>.ParallelWriter.ThreadIndex](/engine/6000.7/script-reference/unity/collections/nativeparallelhashmap2/parallelwriter/threadindex.md)

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