reading int from text file

Question

hi i don't know whether this question has been asked before or not but... how can i read integer numbers with c#?? i've been playing with streamreader and filestream but i can only read numbers from binary files and strings from text files. in c++ it's easy but here... IT'S DRIVING ME NUTS!!! pls help

patrascu_ovidiu · Answer

yeah i know about the binary reader... but we're only working with text files here... anoter solution would be to convert the text file to binary mode and then read... but what if you want to read something like: string1 number1 number2 string2 ... that is both strings and integers.. ? well i read ech line as text used some char delimiters and then the convert method.. thanx for the replies guys

Mykonine · Answer

I think the BinaryReader here is what you want if you want to read numbers from text files. Unless of course you want to parse the text into an int in which case you have to read text and parse.

jsheley · Answer

For what it is worth... I had trouble with Filestream and stream reader also. Here is a snippet of code that worked for me. //******** SOME CODE WAS REMOVED FOR CLAIRITY **************** BinaryReader File_Reader = new BinaryReader(File.Open(File_Name FileMode.Open)); Index_j=0;// intialise array index. while (0<File_Reader.PeekChar()) { //************ Find One Line of Data ************* Text_Message=;// intialise the string. Index_j=0;// Initilaise the index Single_Char=File_Reader.ReadChar(); while(('
' != Single_Char)&&('\0' != Single_Char) &&(0<File_Reader.PeekChar())) { Text_Message=Text_Message+Single_Char; Single_Data_Line[Index_j]=Single_Char; Single_Data_Line[Index_j+1]='
';// Defines end of line. Index_j++;//Increment data Single_Char=File_Reader.ReadChar(); };//END while //************ Find One Line of Data ************* //******** SOME CODE WAS REMOVED FOR CLAIRITY **************** };//END while (0<File_Reader.PeekChar()) File_Reader.Close();

Andrei Arugay · Answer

You can also use the int.Parse() method ex. int num = int.Parse(1234);

bilnaad · Answer

Take a look at Convert. With this as your weapon you can convert nearly anything. Convert.ToInt32 ( string s );