C # common features and events of RichTextBox controls

What is RTF?

TextboxIt is often used to extract short text strings from the user's location, whileRichTextBoxIt is used to display and visualize formatted text (for example, blackening, downgrading, etc ). It uses the standard format text.Rich Text Format(Rich Text Format)RTF.

RichTextBoxCommon adequacy

Canredo	You can useRedoThis attention isTrue
Canundo	ForTrueYou canRichTextBoxThe previous operation is removed. Note thatCanundoInTextboxbaseSo it can also be usedTextboxWidget
Redoactionname	PassRedoMethod of reception operation name
Detecturls	ForTrueYou can make the controlURLAnd format them (in the splitter, there is a part with a lower line)
RTF	It correspondsTextAdequacy, but includesRTFFormatted text
Selectedrtf	OptionalRTFFormat text. If you convert these texts to another applicationProgram, For exampleWordThe text retains all the formatting information.
Selectedtext	AndSelectedrtfIn the same way, you can use this annotation to retrieve or set the selected text. HoweverRTFDifferent versions may cause loss of all formatting information.
Selectionalignment	Method of selecting text, which can beCenter, leftOrRight
Selectbullet	Determines whether the selected text is formatted as the delimiter or used to insert or remove the delimiter.
Bullentindent	Indicates the pixel of the marker object.
Selectioncolor	Modify the colors of selected text
Selectionfont	Modify the fonts of selected text
Selectionlength	Sets or retrieves the length of the selected text.
Selectiontype	Information of the selected text. It can be determined that one or moreOleThe image or the selected text
Showselectionmargin	ForTrueAtRichTextBoxThe left margin of will show a margin, which will make it easier to select text
Undoactionname	Revoke the name of the withdrawal action
Selectionprotected	ForTrueSpecify some parts of the text

Note: The preceding operations are related to the selected text. If no selected text is selected, the formatting operation starts from the position where the optical mark is located and the position is the insertion point.

RichTextBoxCommon events

click	when using a ticket to initiate an event
protected	events are triggered when users modify the text of a protected object using the protected object
selectionchanged	this event is triggered when the selected text changes. If you do not want to use limit to modify the selected text for some reason, you can disable it in this event