c# - How to get all text from RichTextBox in WPF -

i need text wpf richtextbox.

everyone (how wpf rich textbox string, richtextbox (wpf) not have string property "text", http://msdn.microsoft.com/en-us/library/ms754041(v=vs.110).aspx , many more) agrees code one:

public static string gettext(richtextbox rtb) {     textrange textrange = new textrange(rtb.document.contentstart, rtb.document.contentend);     string text = textrange.text;     return text; } 

but add trailling "\r\n". in simple case:

<richtextbox x:name="mrichtextbox">   <flowdocument>     <section>       <paragraph>         <run text="the dog brown. cat black."/>       </paragraph>     </section>   </flowdocument> </richtextbox> 

i get:

"the dog brown. cat black.\r\n"

it can seen minor issue need exact text.

• do know why?
• is safe ignore 1 trailing "\r\n"?
• is code correct?
• is there other gotcha (i mean differences between real text , gettext)?

thanks.

if don't need multiline can disable , shouldn't have problem.

you remove them this:

  string text = textrange.text.replace(environment.newline, ""); 

also if want remove last ocurrence can use function this:

public static string replacelastoccurrence(string source, string find, string replace) {     int place = source.lastindexof(find);     string result = source.remove(place, find.length).insert(place, replace);     return result; } 

and use this.

 string text = replacelastoccurrence(textrange.text,environment.newline,""); 

every time have new line @ end, make sure handle acordingly.