c# - Limit of characters in string -

i have textbox takes string. string long. want limit displayed text (for example 10 characters) , attach 3 dots like:

if text box takes value "to be, or not be, question:" display "to be, or..."

or

if text box takes value "to be" display "to be"

            html.devexpress().textbox(                     tbsettings =>                     {                         tbsettings.name = "tbnameedit";;                         tbsettings.width = 400;                         tbsettings.properties.displayformatstring=???                     }).bind(databinder.eval(product, "reportname")).gethtml(); 

if need use regex, can this:

regex.replace(input, "(?<=^.{10}).*", "..."); 

this replaces text after tenth character 3 dots.

the (?<=expr) lookbehind. means expr must matched (but not consumed) in order rest of match successful. if there fewer ten characters in input, no replacement performed.

here demo on ideone.