How to read file binary in C

Question

I want to make a method that takes any file and reads it as an array of 0s and 1s  i e  its binary code  I want to save that binary code as a text file  Can you help me  Thanks

User · Accepted Answer

Quick and dirty version   byte   fileBytes   File ReadAllBytes inputFilename   StringBuilder sb   new StringBuilder     foreach byte b in fileBytes        sb Append Convert ToString b  2  PadLeft 8   0          File WriteAllText outputFilename  sb ToString

User · Answer

using  FileStream fs   File OpenRead binarySourceFile Path       using  BinaryReader reader   new BinaryReader fs                                  Read in all pairs          while  reader BaseStream Position    reader BaseStream Length                        Item item   new Item                item UniqueId   reader ReadString                item StringUnique   reader ReadString                result Add item                       return result

User · Answer

You can use BinaryReader to read each of the bytes  then use BitConverter ToString byte    to find out how each is represented in binary   You can then use this representation and write it to a file

User · Answer

Generally  I don t really see a possible way to do this  I ve exhausted all of the options that the earlier comments gave you  and they don t seem to work  You could try this            private void button1 Click object sender  EventArgs e                Stream myStream   null          OpenFileDialog openFileDialog1   new OpenFileDialog            openFileDialog1 InitialDirectory    This PC  Documents           openFileDialog1 Filter    All Files                     openFileDialog1 FilterIndex   1          openFileDialog1 RestoreDirectory   true          openFileDialog1 Title    Open a file with code            if  openFileDialog1 ShowDialog      DialogResult OK                        string exeCode   string Empty              using  BinaryReader br   new BinaryReader File OpenRead openFileDialog1 FileName      Sets a new integer to the BinaryReader                               br BaseStream Seek 0x4D  SeekOrigin Begin     The seek is starting from 0x4D                 exeCode   Encoding UTF8 GetString br ReadBytes 1000000000      Reads as many bytes as it can from the beginning of the  exe file                           using  BinaryReader br   new BinaryReader File OpenRead openFileDialog1 FileName                    br Close      Closes the BinaryReader  Without it  opening the file with any other command will result the error  This file is being used by another process                richTextBox1 Text   exeCode                      That s the code for the  Open     button  but here s the code for the  Save     button             private void button2 Click object sender  EventArgs e                SaveFileDialog save   new SaveFileDialog         save Filter    All Files                 save Title    Save Your Changes       save InitialDirectory    This PC  Documents       save FilterIndex   1       if  save ShowDialog      DialogResult OK                 using  BinaryWriter bw   new BinaryWriter File OpenWrite save FileName      Sets a new integer to the BinaryReader                       bw BaseStream Seek 0x4D  SeekOrigin Begin     The seek is starting from 0x4D             bw Write richTextBox1 Text                         That s the save button  This works fine  but only shows the   This cannot be run in DOS-Mode   - Otherwise  if you can fix this  I don t know what to do  My Site

User · Answer

Use simple FileStream Read then print it with Convert ToString b  2

User · Answer

Well  reading it isn t hard  just use FileStream to read a byte     Converting it to text isn t really generally possible or meaningful unless you convert the 1 s and 0 s to hex   That s easy to do with the BitConverter ToString byte    overload   You d generally want to dump 16 or 32 bytes in each line   You could use Encoding ASCII GetString   to try to convert the bytes to characters   A sample program that does this   using System  using System IO  using System Text   class Program       static void Main string   args               Read the file into  lt bits gt          var fs   new FileStream   c  temp test bin   FileMode Open           var len    int fs Length          var bits   new byte len           fs Read bits  0  len              Dump 16 bytes per line         for  int ix   0  ix  lt  len  ix    16                var cnt   Math Min 16  len - ix               var line   new byte cnt               Array Copy bits  ix  line  0  cnt                  Write address   hex   ascii             Console Write   0 X6      ix               Console Write BitConverter ToString line                Console Write                       Convert non-ascii characters to               for  int jx   0  jx  lt  cnt    jx                  if  line jx   lt  0x20    line jx   gt  0x7f  line jx     byte                  Console WriteLine Encoding ASCII GetString line                      Console ReadLine

[c#] How to read file binary in C#?

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