| Class | Description |
| AutoCompleteFilteringEventArgs | Event information for C1AutoComplete.Filtering event. |
| C1AutoComplete | The auto-complete control is an editable input control that shows completion suggestions automatically while the user is typing. The list of suggestions is displayed in a drop down menu from which the user. |
| C1ComboBox | C1ComboBox is an extension of DropDown that contains an editable textbox in the header and a listview in the drop-down. |
| C1DropDown | C1DropDown provides a generic drop-down control with a Header property that determines what the user sees when the drop-down part of the control is closed, and a Content property that determines what goes into the drop-down section. |
| C1MaskedTextField | Masked editor provides a way to govern what a user is allowed to input. The control prevents users from accidentally entering invalid data and saves time by skipping over literals (such as slashes in dates) as the user types. |
| C1TextBox | Represents a control that can be used to display and edit plain text, |
| ComboBoxItemLoadingEventArgs | Event information for C1ComboBox.ItemLoading event. |
| CompletedEventArgs | Occurs when the user finalizes the text in an entry with the return key. |
| DropDownOpenChangedEventArgs | Event information for C1DropDown.DropDownOpenChanged event. |
| DropDownOpenChangingEventArgs | Event information for C1DropDown.DropDownOpenChanging event. |
| RoundRectLayer | |
| TextBoxAutoCompleteEventArgs | Contains information about the C1TextBox.AutoComplete. |
| TextChangedEventArgs | Event information for C1ComboBox.TextChanged event. |