# C1Editor Design-Time Support

Get started with C1Editor that uses XHTML as its basic format (instead of RTF or proprietary formats) and makes it extremely easy to automate all kinds of document handling tasks.

## Content



The following sections describe how to use **C1Editor**'s design-time environment to configure the [C1Editor](/componentone/api/win/online-richtexteditor/dotnet-framework-api/C1.Win.C1Editor.4.8/C1.Win.C1Editor.C1Editor.html) control.

## See Also

[Smart Tags](/componentone/docs/win/online-richtexteditor/c1editordesigntimesu/smarttags)

[Context Menus](/componentone/docs/win/online-richtexteditor/c1editordesigntimesu/contextmenus)