---
id: "P:cAlgo.API.OptimizationProgressChangedEventArgs.Operation"
kind: "property"
type: "T:cAlgo.API.OptimizationProgressChangedEventArgs"
url: "https://help.ctrader.com/ctrader-algo/references/Plugin/Optimization/OptimizationProgressChangedEventArgs/Operation/"
---

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

# OptimizationProgressChangedEventArgs.Operation

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

## Operation

Gets the description of the current operation.

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 string Operation {get;}
```

Python:

```python
optimizationProgressChangedEventArgs.Operation: str
```

### Returns

`string` — 

Available since cAlgo.API 5.9.

### Examples

C#:

```csharp
protected override void OnStart()
{
    Optimization.ProgressChanged += OnProgressChanged;
}

private void OnProgressChanged(OptimizationProgressChangedEventArgs args)
{
    Print("Current optimization operation: {0}", args.Operation);
}
```

Python:

```python
def on_start(self):
    api.Optimization.ProgressChanged += self.on_progress_changed

def on_progress_changed(self, args):
    api.Print(f"Current optimization operation: {args.Operation}")
```