# Sandbox.Model.GetMaterialGroupName

```csharp
string GetMaterialGroupName(int groupIndex)
```

Returns name of a material group at given group index.

### Parameters

- `groupIndex` (`int`): Group index to get name of, starting at 0.

### Returns

`string`: Name of the group.

### Exceptions

- `System.ArgumentOutOfRangeException`: Thrown when given index exceeds range of [0,MaterialGroupCount-1]

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