c# - Write to file cut off -

my goal take file of sentences, apply basic filtering, , output remaining sentences file , terminal. i'm using hunspell library.

here's how sentences file:

    public static string[] sentencesfromfile_old(string path)     {         string s = "";         using (streamreader rdr = file.opentext(path))         {             s = rdr.readtoend();         }         s = s.replace(environment.newline, " ");         s = regex.replace(s, @"\s+", " ");         s = regex.replace(s, @"\s*?(?:\(.*?\)|\[.*?\]|\{.*?\})", string.empty);         string[] sentences = regex.split(s, @"(?<=\. |[!?]+ )");         return sentences;     } 

here's code writes file:

        list<string> sentences = new list<string>(checker.sentencesfromfile_old(path));         streamwriter w = new streamwriter(outfile);         foreach(string x in xs)             if(checker.check(x, speller))             {                 w.writeline("[{0}]", x);                 console.writeline("[{0}]", x);             } 

here's checker:

    public static bool check(string s, nhunspell.hunspell speller)     {         char[] punctuation = {',', ':', ';', ' ', '.'};         bool upper = false;         // check string length.         if(s.length <= 50 || s.length > 250)             return false;         // check if string contains allowed punctuation , letters.         // disallow words multiple consecutive caps.         for(int = 0; < s.length; ++i)         {             if(punctuation.contains(s[i]))                 continue;             if(char.isupper(s[i]))             {                 if(upper)                     return false;                 upper = true;             }             else if(char.islower(s[i]))             {                 upper = false;             }             else return false;         }         // spellcheck each word.         string[] words = s.split(' ');         foreach(string word in words)             if(!speller.spell(word))                 return false;         return true;     } 

the sentences printed on terminal fine, text file cuts off mid-sentence @ 2015 characters. what's that?

edit: when remove parts of check method, file cut off @ various lengths somewhere around either 2000 or 4000. removing spellcheck eliminates cutoff entirely.

you need flush stream before closing it.

w.flush(); w.close(); 

the using statement (which should use) close stream automatically, not flush it.

using( var w = new streamwriter(...) ) {   // stuff   w.flush(); }