---
id: "E:cAlgo.API.AspTab.IsSelectedChanged"
kind: "event"
type: "T:cAlgo.API.AspTab"
url: "https://help.ctrader.com/ctrader-algo/references/Plugin/Asp/AspTab/IsSelectedChanged/"
---

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

# AspTab.IsSelectedChanged

Member of [AspTab](https://help.ctrader.com/ctrader-algo/references/Plugin/Asp/AspTab/index.md).

## IsSelectedChanged

Occurs after tab IsSelected value change.

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.

C#:

```csharp
event Action<AspTabIsSelectedChangedEventArgs> IsSelectedChanged;
```

Python:

```python
aspTab.IsSelectedChanged += handler  # handler(obj: AspTabIsSelectedChangedEventArgs)
```

### Returns

`Action<AspTabIsSelectedChangedEventArgs>` — 

### Examples

C#:

```csharp
protected override void OnStart()
{
    var tab = Asp.AddTab("My Tab");
    tab.IsSelectedChanged += OnTabIsSelectedChanged;
}

private void OnTabIsSelectedChanged(AspTabIsSelectedChangedEventArgs args)
{
    Print("Tab {0} is selected: {1}", args.AspTab.Title, args.AspTab.IsSelected);
}
```

Python:

```python
def on_start(self):
    tab = api.Asp.AddTab("My Tab")
    tab.IsSelectedChanged += self.on_tab_is_selected_changed

def on_tab_is_selected_changed(self, args):
    api.Print(f"Tab {args.AspTab.Title} is selected: {args.AspTab.IsSelected}")
```