Getting Started with WinForms Calculator

This tutorial will walk you through the creation of a sample application that contains RadCalculator. The following picture shows the final result produced by the code of this tutorial.

WinForms RadCalculator Getting Started

The design may vary according to the applied theme to the application.

Adding Telerik Assemblies Using NuGet

To use RadCalculator when working with NuGet packages, install the Telerik.UI.for.WinForms.AllControls package. The package target framework version may vary.

Read more about NuGet installation in the Install using NuGet Packages article.

With the 2025 Q1 release, the Telerik UI for WinForms has a new licensing mechanism. You can learn more about it here.

Adding Assembly References Manually

When dragging and dropping a control from the Visual Studio (VS) Toolbox onto the Form Designer, VS automatically adds the necessary assemblies. However, if you're adding the control programmatically, you'll need to manually reference the following assemblies:

Telerik.Licensing.Runtime
Telerik.WinControls
Telerik.WinControls.UI
TelerikCommon

The Telerik UI for WinForms assemblies can be install by using one of the available installation approaches.

Defining RadCalculator

To start using the RadCalculator control, you can just add it to the Controls collection of your Form or drop it from the Toolbox.


    public void AddCalculator()
    {
        var calculator = new RadCalculator();
        this.Controls.Add(calculator);
    }


    Public Sub AddCalculator()
        Dim calculator = New RadCalculator()
        Me.Controls.Add(calculator)
    End Sub

Getting Started with WinForms Calculator

Adding Telerik Assemblies Using NuGet

Adding Assembly References Manually

Defining RadCalculator

See Also

Telerik UI for WinForms Learning Resources

Getting Started

Support Resources

Community