---
id: "M:cAlgo.API.TabControl.#ctor"
kind: "constructor"
type: "T:cAlgo.API.TabControl"
url: "https://help.ctrader.com/ctrader-algo/references/Controls/TabControl/Constructor/"
---

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

# TabControl constructor

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

## TabControl()

Initializes a new instance of the TabControl class.

Environments: Desktop supported · CLI not supported · Cloud not supported.

- CLI: Accepted without error but never displayed, so control events such as Click are never raised.
- Cloud: Accepted without error but never displayed, so control events such as Click are never raised.

C#:

```csharp
public TabControl()
```

Python:

```python
TabControl()
```

Available since cAlgo.API 5.2.

### Examples

C#:

```csharp
var tabControl = new TabControl { Width = 300, Height = 200 };
tabControl.AddTab(new TabItem { Header = new TextBlock { Text = "Positions" }, Content = new TextBlock { Text = "Open positions: " + Positions.Count } });
tabControl.AddTab(new TabItem { Header = new TextBlock { Text = "Orders" }, Content = new TextBlock { Text = "Pending orders: " + PendingOrders.Count } });
Chart.AddControl(tabControl);
```

Python:

```python
tabControl = TabControl()
tabControl.Width = 300
tabControl.Height = 200
for title, text in [("Positions", f"Open positions: {api.Positions.Count}"), ("Orders", f"Pending orders: {api.PendingOrders.Count}")]:
    header = TextBlock()
    header.Text = title
    content = TextBlock()
    content.Text = text
    tab = TabItem()
    tab.Header = header
    tab.Content = content
    tabControl.AddTab(tab)
api.Chart.AddControl(tabControl)
```