# Sandbox.UI.BaseVirtualPanel.InsertItem

```csharp
void InsertItem(int index, object item)
```

Inserts an item at the specified index and marks the panel for rebuild.

### Parameters

- `index` (`int`): The zero-based index at which item should be inserted.
- `item` (`object`): The item to insert.

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