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Getting Started with WPF MultiColumnComboBox

Updated on Sep 24, 2025

This tutorial will walk you through the required steps for using RadMultiColumnComboBox.

Adding Telerik Assemblies Using NuGet
Adding Assembly References Manually
Adding RadMultiColumnComboBox to the Project

Adding Telerik Assemblies Using NuGet

To use RadMultiColumnComboBox when working with NuGet packages, install the Telerik.Windows.Controls.GridView.for.Wpf.Xaml package. The package name may vary slightly based on the Telerik dlls set - Xaml or NoXaml

Read more about NuGet installation in the Installing UI for WPF from NuGet Package article.

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

Adding Assembly References Manually

If you are not using NuGet packages, you can add a reference to the following assemblies:

Telerik.Licensing.Runtime
Telerik.Windows.Controls
Telerik.Windows.Controls.GridView
Telerik.Windows.Controls.Input
Telerik.Windows.Data

Adding RadMultiColumnComboBox to the Project

Example 1: Defining RadMultiColumnComboBox Declaratively

XAML

	<telerik:RadMultiColumnComboBox VerticalAlignment="Top">
    </telerik:RadMultiColumnComboBox>

Figure 1: Defining RadMultiColumnComboBox

RadMultiColumnComboBox

Note, that such definition would simply result in having an AutoComplete box. In order to have the actual RadGridView populated as a Content of the DropDown the GridViewItemsSourceProvider needs to be set as an ItemsSourceProvider. Note, that the DisplayMemberPath property of RadMultiColumnComboBox is also set. Its purpose is to point to a property of the bound data item present in the source collection of the ItemsSourceProvider. Thus, the control will be aware what value to display in the AutoCompleteBox. If not set, the control would simply call the ToString method of the bound item.

__[XAML] Example 2: Setting the GridViewItemsSourceProvider

XAML

	 <telerik:RadMultiColumnComboBox VerticalAlignment="Top" DisplayMemberPath="Name">
            <telerik:RadMultiColumnComboBox.ItemsSourceProvider>
                <telerik:GridViewItemsSourceProvider ItemsSource="{Binding Clubs}" />
            </telerik:RadMultiColumnComboBox.ItemsSourceProvider>
        </telerik:RadMultiColumnComboBox>

This definition will have the following output.

Figure 2: Setting the GridViewItemsSourceProvider