# BuildContextualMenu(ContextualMenuPopulateEvent)

> Adds menu items to the placemat contextual menu.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.Experimental.GraphView](/engine/6000.6/script-reference/unityeditor/experimental/graphview.md)
* **Assembly:** UnityEditor

```csharp
protected virtual void BuildContextualMenu(ContextualMenuPopulateEvent evt)
```

### Parameters

**** (\[ContextualMenuPopulateEvent]\(/engine/6000.6/script-reference/unityengine/uielements/contextualmenupopulateevent)): The event for the contextual menu being populated.