Read binary file in c sharp




















BinaryReader class has three overloaded constructors to work with binary data. By default, BinaryReader uses UTF-8 encoding to read data until we specify other character encodings while creating its object. The above statement initializes a new instance of BinaryReader based on the specified stream inputStream by using UTF-8 encoding. This statement initializes a new instance of BinaryReader based on the specified stream i nputStream and encoding specified by encoding.

This statement works the same as the above two statements with an extra parameter of type Boolean which is used to specify if the user wants to leave the stream open after the object of BinaryReader is disposed of. In the above statement, File. Open method returns an object of FileStream and thus it helps in creating the object of BinaryReader.

BinaryReader is used to read binary information i. Binary file stores data in a way which can be easily understood by a machine but for human it is very difficult to understand such data. To help understand such data BinaryReader is used. In order to work with BinaryReader, we first need to import System. IO namespace in our code. While creating an instance of BinaryReader we provide stream to read from then we can optionally specify the character encoding to be used if we do not specify encoding, by default UTF-8 encoding is used.

Along with this, we can optionally specify if we want the stream to be opened after the object of BinaryReader is disposed of as shown in the below statement.

Then with the help of different Read methods of BinaryReader which are provided for different data types, we can read data from the file. BinaryReader has many Read methods that support different data types and they are used to read primitive data types from a stream.

Such as the ReadString method of BinaryReader is used to read the next byte as string value and also it advances the current position in the stream by one byte. Generic; using System. Linq; using System. Text; using System. 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. GetString to try to convert the bytes to characters.

A sample program that does this:. 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. 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:. That's the save button. This works fine, but only shows the '! This cannot be run in DOS-Mode! Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Collectives on Stack Overflow. Learn more. How to read file binary in C? Ask Question. Asked 11 years, 10 months ago. Active 2 years, 4 months ago. Viewed k times. Improve this question. Boris Boris 9, 30 30 gold badges silver badges bronze badges. Your question is unclear. What exactly should the two files look like?

I think he wants to store the bit pattern of a file into a text file. In other words, if you open the file in a text editor like Notepad, do you see zeros and ones? Add a comment. Create , ascii ; Reading a Binary File The Read overloaded method is used to write primitive data types to a stream. The following code snippet reads various data types using their respective methods. ReadDouble ; Sample Here is a complete sample code that creates a binary file and adds data to it.

Write age ; binWriter. WriteLine "Data Written! View All. Read a binary file in C. Mahesh Chand Updated date Dec 20,



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