# BindColumn

> Callback triggered when the column containing a HierarchyViewCell generated by this descriptor is bound to the HierarchyView.

## Definition

* **Type:** Field
* **Namespace:** [Unity.Hierarchy](/engine/6000.5/script-reference/unity/hierarchy.md)
* **Assembly:** UnityEngine.HierarchyModule

```csharp
public Action<HierarchyViewColumnDescriptor, HierarchyView> BindColumn
```