---
id: "P:cAlgo.API.FrameContainerChangedEventArgs.Frame"
kind: "property"
type: "T:cAlgo.API.FrameContainerChangedEventArgs"
url: "https://help.ctrader.com/ctrader-algo/references/EventArgs/FrameContainerChangedEventArgs/Frame/"
---

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

# FrameContainerChangedEventArgs.Frame

Member of [FrameContainerChangedEventArgs](https://help.ctrader.com/ctrader-algo/references/EventArgs/FrameContainerChangedEventArgs/index.md).

## Frame

Returns the frame.

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
public Frame Frame {get;}
```

Python:

```python
frameContainerChangedEventArgs.Frame: Frame
```

### Returns

`Frame` — 

### Examples

C#:

```csharp
protected override void OnStart()
{
    var frame = ChartManager.AddChartFrame("EURUSD", TimeFrame.Hour);
    frame.ContainerChanged += OnFrameContainerChanged;
}

private void OnFrameContainerChanged(FrameContainerChangedEventArgs args)
{
    var container = args.Frame.ChartContainer;
    if (container != null)
        Print("Container {0} now has {1} frames, mode: {2}", container.Id, container.Count, container.Mode);
}
```

Python:

```python
def on_start(self):
    frame = api.ChartManager.AddChartFrame("EURUSD", TimeFrame.Hour)
    frame.ContainerChanged += self.on_frame_container_changed

def on_frame_container_changed(self, args):
    container = args.Frame.ChartContainer
    if container is not None:
        api.Print(f"Container {container.Id} now has {container.Count} frames, mode: {container.Mode}")
```