Build a form widget: Implement the template | WebForms

By definition, your widget must provide UI for both displaying and editing the value of a widget.

EXAMPLE: For more information about the markup of the widget, see FormWidget.ascx in Sitefinity documentation-samples on GitHub.

This template does the following:

• Registers the Telerik.Sitefinity.Web.UI namespace, to use the SitefinityLabel.
• Includes only the required labels for TitleControl, DescriptionControl, and ExampleControl.
  These IDs correspond to the IDs that are used in the class properties.

By following the example above, you have a blank template, where you can add the custom controls for your field control.