#Clears all objects in a collection./Returns/sets the background color of an object.\Returns/sets a value that determines whether an object can respond to user-generated events.hReturns/sets a value that specifies if the selected item remains highlighted when a control loses focus.-Returns/sets the text contained in an object.lReturns/sets a value indicating whether a RichTextBox control can accept and display multiple lines of text.eReturns/sets a value indicating whether a RichTextBox control has horizontal or vertical scroll bars./Returns/sets the number of characters selected