Simple and powerful single item selection in WPF

Implement single item selection that's simple to set up and powerful to use with ComponentOne DropDown™ for WPF.

Specialized Drop-down Editors

With DropDown, you have complete control over creating specialized drop-down editors. Attach your own logic to the spin buttons and your own drop-down form/editor to the drop-down button. For example, you could place a DataGrid in the drop-down portion and code its row selection event to display a value from that row in the DropDown header portion.

WPF DropDown

Expandable Above/Below the Header

Configure the drop-down box to display above or below the header portion with the DropDownDirection property, or set the direction preference the control will use if there is enough space available on the form.


You have full control over when and whether the drop-down closes with the AutoClose property.

Sizable Drop-down List

You can explicitly set the width and height of the drop-down or have it sized automatically to fit the content.

Easily Change Colors with ClearStyle

Because DropDown for WPF supports ComponentOne ClearStyle™ technology, you can change control brushes without having to override templates. By setting a few brush properties in Visual Studio, you can style each part of the control.