---
id: "T:cAlgo.API.MainMenuSelectedItemChangedEventArgs"
kind: "class"
namespace: "cAlgo.API"
url: "https://help.ctrader.com/ctrader-algo/references/EventArgs/MainMenuSelectedItemChangedEventArgs/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# MainMenuSelectedItemChangedEventArgs (class)

Provides data for the main menu selected item changed event.

Environments: Desktop supported · CLI not supported · Cloud not supported.

- CLI: Available to plugins only, and plugins cannot run in the CLI.
- Cloud: Available to plugins only, and plugins cannot run in the cloud.

## Definition

```csharp
public class MainMenuSelectedItemChangedEventArgs
```

Available since cAlgo.API 5.4.

## Examples

C#:

```csharp
protected override void OnStart()
{
    MainMenu.SelectedItemChanged += OnMainMenuSelectedItemChanged;
}

private void OnMainMenuSelectedItemChanged(MainMenuSelectedItemChangedEventArgs args)
{
    Print("Main menu selection changed from {0} to {1}", args.OldItem, args.NewItem);
}
```

Python:

```python
def on_start(self):
    api.MainMenu.SelectedItemChanged += self.on_main_menu_selected_item_changed

def on_main_menu_selected_item_changed(self, args):
    api.Print(f"Main menu selection changed from {args.OldItem} to {args.NewItem}")
```

## Properties

- `public MainMenuItem NewItem {get;}` — Gets new selected item. [details](https://help.ctrader.com/ctrader-algo/references/EventArgs/MainMenuSelectedItemChangedEventArgs/NewItem/index.md)
- `public MainMenuItem OldItem {get;}` — Gets old selected item. [details](https://help.ctrader.com/ctrader-algo/references/EventArgs/MainMenuSelectedItemChangedEventArgs/OldItem/index.md)