C# BinaryWriter

by Online Tutorials Library July 14, 2022

C# BinaryWriter

C# BinaryWriter class is used to write binary information into stream. It is found in System.IO namespace. It also supports writing string in specific encoding.

C# BinaryWriter Example

Let’s see the simple example of BinaryWriter class which writes data into dat file.

 using System; using System.IO; namespace BinaryWriterExample {     class Program     {         static void Main(string[] args)         {             string fileName = “e:\binaryfile.dat”;             using (BinaryWriter writer = new BinaryWriter(File.Open(fileName, FileMode.Create)))             {                 writer.Write(2.5);                 writer.Write(“this is string data”);                 writer.Write(true);             }             Console.WriteLine(“Data written successfully…”);           }     } } 

Output:

Data written successfully...

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