getting-started.md

title	page_title	description	slug	tags	published	position
Getting Started	Getting Started	Check our "Getting Started" documentation article for the RadNumericUpDown {{ site.framework_name }} control.	radnumericupdown-drag-and-drop	getting,started	true	1

Getting Started with {{ site.framework_name }} NumericUpDown

This tutorial will walk you through the creation of a sample application that contains RadNumericUpDown.

• Assembly References
• Adding RadNumericUpDown to the Project
• Binding Value

Assembly References

To use RadNumericUpDown control in your projects you have to add references to the following assemblies:

• Telerik.Licensing.Runtime
• Telerik.Windows.Controls
• Telerik.Windows.Controls.Input

tip With the 2025 Q1 release, the Telerik UI for WPF has a new licensing mechanism. You can learn more about it [here]({%slug installing-license-key%}).

Adding Telerik Assemblies Using NuGet

To use RadNumericUpDown when working with NuGet packages, install the Telerik.Windows.Controls.Input.for.Wpf.Xaml package. The [package name may vary]({%slug nuget-available-packages%}) slightly based on the Telerik dlls set - [Xaml or NoXaml]({%slug xaml-vs-noxaml%})

Read more about NuGet installation in the [Installing UI for WPF from NuGet Package]({%slug nuget-installation%}) article.

Adding RadNumericUpDown to the Project

Before proceeding with adding RadNumericUpDown to your project, make sure the required assembly references are added to the project.

You can add RadNumericUpDown manually by writing the XAML code in Example 1. You can also add the control by dragging it from the Visual Studio Toolbox and dropping it over the XAML view.

[XAML] Example 1: Adding RadNumericUpDown in XAML

{{region xaml-radnumericupdown-drag-and-drop_1}} <telerik:RadNumericUpDown /> {{endregion}}

In order to use RadNumericUpDown in XAML you have to add the namespace declaration shown in Example 2:

[XAML] Example 2: Declaring Telerik Namespace

{{region telerik-schemas}} xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" {{endregion}}

If you run the application you will see and empty RadNumericUpDown as demonstrated in Figure 1.

Figure 1: The empty RadNumericUpDown generated by the code in Example 1

importantThe default Value of the RadNumericUpDown control is equal to null.

Binding Value

You can then bind RadNumericUpDown's Value to a property of your view model as well as customize it by setting its [properties]({%slug radnumericupdown-behavior%}) similarly to Example 3:

[XAML] Example 3: Binding RadNumericUpDown's Value

{{region xaml-radnumericupdown-drag-and-drop_2}} <telerik:RadNumericUpDown Value="{Binding Clubs[0].StadiumCapacity}" Minimum="10000" Maximum="100000" SmallChange="1000" /> {{endregion}}

Setting a Theme

The controls from our suite support different themes. You can see how to apply a theme different than the default one in the [Setting a Theme]({%slug styling-apperance-implicit-styles-overview%}) help article.

important Changing the theme using implicit styles will affect all controls that have styles defined in the merged resource dictionaries. This is applicable only for the controls in the scope in which the resources are merged.

To change the theme, you can follow the steps below:

• Choose between the themes and add reference to the corresponding theme assembly (ex: Telerik.Windows.Themes.Windows8.dll). You can see the different themes applied in the Theming examples from our {% if site.site_name == 'WPF' %}WPF Controls Examples{% else %}Silverlight Controls Examples{% endif %} application.

• Merge the ResourceDictionaries with the namespace required for the controls that you are using from the theme assembly. For the RadNumericUpDown, you will need to merge the following resources:

  • Telerik.Windows.Controls
  • Telerik.Windows.Controls.Input

Example 4 demonstrates how to merge the ResourceDictionaries so that they are applied globally for the entire application.

[XAML] Example 4: Merge the ResourceDictionaries

{{region radnumericupdown-getting-started_6}} <Application.Resources> <ResourceDictionary.MergedDictionaries> </ResourceDictionary.MergedDictionaries> </Application.Resources> {{endregion}}

Alternatively, you can use the theme of the control via the {% if site.site_name == 'WPF' %}StyleManager{% else %}StyleManager{% endif %}.

Figure 2 shows a RadNumericUpDown with the Windows8 theme applied.

Figure 2: RadNumericUpDown with the Windows8 theme

{% if site.site_name == 'WPF' %}

Telerik UI for WPF Learning Resources

• Telerik UI for WPF NumericUpDown Component
• [Getting Started with Telerik UI for WPF Components]({%slug getting-started-first-steps%})
• [Telerik UI for WPF Installation]({%slug installation-installing-which-file-do-i-need%})
• [Telerik UI for WPF and WinForms Integration]({%slug winforms-integration%})
• [Telerik UI for WPF Visual Studio Templates]({%slug visual-studio-templates%})
• [Setting a Theme with Telerik UI for WPF]({%slug styling-apperance-implicit-styles-overview%})
• Telerik UI for WPF Virtual Classroom (Training Courses for Registered Users)
• Telerik UI for WPF License Agreement {% endif %}

See Also

• [Formatting]({%slug radnumericupdown-formatting%})

• [Properties]({%slug radnumericupdown-behavior%})

• [Events]({%slug radnumericupdown-events%})