Getting Started with WinForms TrackBar

This tutorial will help you to quickly get started using the control.

Adding Telerik Assemblies Using NuGet

To use RadTrackBar 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 the RadTrackBar

This tutorial demonstrates connecting a RadTrackBar to a RadTextBox control. Setting the track bar slider position changes the value in the text box.

1. Place a RadTrackBar, RadTextBox and RadLabel controls on a form.

2. Select the RadLabel control and set its Text property to "Current Value:".

3. Select the RadTrackBar control and set the Maximum property to 30.

4. Click the Events toolbar button in the Properties window.

5. Double-click the ValueChanged event.

6. Replace the automatically-generated event handler with the following code:

void radTrackBar1_ValueChanged(object sender, EventArgs e)
{
    this.radTextBox1.Text = radTrackBar1.Value.ToString();
}

Private Sub radTrackBar1_ValueChanged(ByVal sender As Object, ByVal e As EventArgs)
    Me.radTextBox1.Text = radTrackBar1.Value.ToString()
End Sub

8. Press F5 to run the project.

9. Move the slider on the track bar using the mouse. The text box will update to show the new slider position.

See Also

• Structure
• Design Time

Telerik UI for WinForms Learning Resources

• Telerik UI for WinForms TrackBar Component
• Getting Started with Telerik UI for WinForms Components
• Telerik UI for WinForms Setup
• Telerik UI for WinForms Application Modernization
• Telerik UI for WinForms Visual Studio Templates
• Deploy Telerik UI for WinForms Applications
• Telerik UI for WinForms Virtual Classroom(Training Courses for Registered Users)
• Telerik UI for WinForms License Agreement)