# Calculator Picker

The `RadCalculatorPicker` control is a drop down button with a `RadCalculator` in its drop down content. The button content shows the calculated value of the calculator.

#### **Defining RadCalculatorPicker**

```XAML
<telerikControls:RadCalculatorPicker Height="30" Width="200" />		
```

The `telerikControls` namespace points to `xmlns:telerikControls="using:Telerik.UI.Xaml.Controls"`.

**RadCalculatorPicker example**

![A picture showing RadCalculatorPicker](https://www.telerik.com/winui/documentation/assets/1460ae9c3f03d159bc5e6d0fa703119c/radcalculatorpicker-basic.png)

The drop down state can be controlled manually with the `IsDropDownOpen` property of `RadCalculatorPicker`.

#### **Opening the drop down content in code**

```C#
this.calculatorPicker.IsDropDownOpen = true;
```

## See Also

* [Getting Started](https://www.telerik.com/winui/documentation/controls/radcalculator/getting-started)