# Sandbox.Animation.GraphBuilder.BindVirtualParameter

```csharp
void BindVirtualParameter(string name, Node value)
```

Bind an existing node as a named virtual parameter.

### Parameters

- `name` (`string`)
- `value` (`Node`)

### Exceptions

- `System.ArgumentException`: The name is null, blank, or already used by another parameter (case-insensitive).

Declared in [Sandbox.Animation.GraphBuilder](/api/Sandbox.Animation.GraphBuilder).
Assembly: `Sandbox.Engine`.