Binaryreader read until end file

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Question Binaryreader - Reading to end of file? Thread starter Adagio Start date Jan 14, Tags binarywriter bineryreader file. Adagio Well-known member. I have tried to create a method for writing information from an instance of a class to a binary file. The code works fine, the only problem is finding the end of the file. After it has read the last value that should be read, the basestream. Length is still higher than basestream.

Position by a random number In my case I have created a class with two fields name and birthday , one that is string and a date field. The number of decoded characters to read is greater than count. This can happen if a Unicode decoder returns fallback characters or a surrogate pair. The following example shows how to write binary data by using memory as a backing store. It displays a message to the console that indicates whether the data was written correctly.

This example reads the contents of a file and displays each byte's numeric value in column format. The end of the file that is being read is detected when the Read method returns zero bytes. BinaryReader does not restore the file position after an unsuccessful read operation.

Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Binary Reader. They either returned an error saying that I couldn't use them as I had entered the code or, I received the message "Unable to read past the end of the stream". You're right, I have corrected that situation 3.

Close ; fs. Open, FileAccess. WriteLine r. I really don't know how the hex characters get into the file. It apparently only happens occasionally since this time only 8 out of 1.

It is wierd, and I wish I could locate the source. The 0x0a character only appears in the address field right after the name and before the street address. I thought using the BinaryReader would ignore any hex characters because I had originally used StreamReader which caused the line to split at the character because it thought that an EOL had been reached.

The key point Mario made is that you can't use BinaryReader. It can only read strings written by BinaryWriter. Tell us more about the file format. How is the end of each record indicated? Does it have fixed length records? What kind of character encoding does it use? When you still tried using StreamReader, did you use ReadLine? My apologies. The file is a text file. Each line is fixed characters long note: we occasionally get files with longer records. I'm not sure about the character encoding, I believe it's UTF OpenOrCreate, FileAccess.

Write, FileShare. Write "This is string" ; writer. Write WriteLine ex. Open, FileAccess. Read, FileShare. ReadString ; Console. ReadDouble ; Console. WriteFile ; obj. ReadFile ; Console. BinaryReader is used to read primitive data types as binary values in a specific encoding stream. Stream object needs to be passed inside the constructor of BinaryReader in order to create its instance.

This is a guide to C BinaryReader. Here we discuss the introduction, different examples and how BinaryReader works in C?