visual studio - C# - Reading NewLine characters from reading a string character by character -

so have program loop, reading every character 1 one , replacing 4 digit number correlating particular letter using case statement.

my problem is not reading newline characters ('\n') , don't know how fix this.

here code:

 (int = 0; < inputtextbox.text.length; i++)         {             //encryption             switch (inputtextbox.text[i])             {                 // got rid of rest of cases                 // not relevant                 case '\n':                     encryptedstring = encryptedstring + "8024";                     break;             }         } 

and since not accept new line character, doesn't add encryptedstring.

this might seem duplicate question other posts found in different situations.

edit ---------------------------------------------------------------------------------------------------------------------------- after debugging, turns out reading '\n' not writing string when decoding it.

here's code decoding section:

            (int = 0; < readstring.length; = + 4)             {             //decryption             switch (readstring.substring(i, 4))             {                 case "8024":                     decryptedstring = decryptedstring + "\n";                     break;             }         }         inputtextbox.text = decryptedstring; 

so reaching "decryptedstring = decryptedstring + "\n";" line not adding new line string reason. have tried '\n' instead of "\n" sure.

i replaced "\n" when decoding newlines "system.environment.newline" , fixed problem.