---
id: "M:cAlgo.API.CustomTimeFrame.AddBars(cAlgo.API.Internals.Symbol)"
kind: "method"
type: "T:cAlgo.API.CustomTimeFrame"
url: "https://help.ctrader.com/ctrader-algo/references/Plugin/TimeFrame/Custom/CustomTimeFrame/AddBars/"
---

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

# CustomTimeFrame.AddBars

Member of [CustomTimeFrame](https://help.ctrader.com/ctrader-algo/references/Plugin/TimeFrame/Custom/CustomTimeFrame/index.md).

## AddBars(Symbol symbol)

Adds bars for a symbol that will be used for this custom time frame when needed.

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
CustomBars AddBars(Symbol symbol)
```

Python:

```python
customTimeFrame.AddBars(symbol: Symbol) -> CustomBars
```

### Parameters

- `symbol` (`Symbol`, Python `Symbol`): Bars Symbol

### Returns

`CustomBars` — CustomBars

Available since cAlgo.API 5.3.

### Examples

C#:

```csharp
var customTimeFrame = TimeFrameManager.Custom.Add("My Custom TF");
var customBars = customTimeFrame.AddBars(Symbols.GetSymbol("EURUSD"));
customBars.AppendBar(new CustomBar(Server.Time, 1.0850, 1.0870, 1.0840, 1.0865, 1200));
Print("Custom bars for {0}: {1}", customBars.Symbol.Name, customBars.Bars.Count);
```

Python:

```python
customTimeFrame = api.TimeFrameManager.Custom.Add("My Custom TF")
customBars = customTimeFrame.AddBars(api.Symbols.GetSymbol("EURUSD"))
customBars.AppendBar(CustomBar(api.Server.Time, 1.0850, 1.0870, 1.0840, 1.0865, 1200))
api.Print(f"Custom bars for {customBars.Symbol.Name}: {customBars.Bars.Count}")
```