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

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

# SymbolUpdatedEventArgs (class)

Provides data for the symbols updated event.

Environments: Desktop supported · CLI supported · Cloud supported.

## Definition

```csharp
public class SymbolUpdatedEventArgs
```

Available since cAlgo.API 5.3.

## Examples

C#:

```csharp
protected override void OnStart()
{
    Symbols.Updated += OnSymbolsUpdated;
}

private void OnSymbolsUpdated(SymbolUpdatedEventArgs args)
{
    Print("Symbol updated: {0}", args.SymbolName);
}
```

Python:

```python
def on_start(self):
    api.Symbols.Updated += self.on_symbols_updated

def on_symbols_updated(self, args):
    api.Print(f"Symbol updated: {args.SymbolName}")
```

## Properties

- `public string SymbolName {get;}` — Gets updated symbol name. [details](https://help.ctrader.com/ctrader-algo/references/EventArgs/SymbolUpdatedEventArgs/SymbolName/index.md)