How to VB.NET BinaryReader

The BinaryReader object operates at a lower level within the realm of Streams, serving as a valuable tool for reading primitive types as binary values from a specific encoding stream. It excels in handling the intricacies of binary data, allowing for efficient retrieval and interpretation of such information.

To effectively utilize the BinaryReader object, it is essential to work in conjunction with Stream objects that grant access to the underlying bytes. These Stream objects serve as the foundation, providing the necessary access and data source for the BinaryReader to operate upon.

Dim readStream As FileStream readStream = New FileStream("c:\testBinary.dat", FileMode.Open) Dim readBinary As New BinaryReader(readStream)

Creating a BinaryReader object follows a systematic process. First, you must instantiate a FileStream object, which establishes a connection to the desired file or data source. This FileStream object acts as a bridge between the BinaryReader and the underlying data, enabling seamless data retrieval and interpretation.

Once the FileStream object is established, it is then passed as a parameter to the constructor method of the BinaryReader, facilitating the creation of the BinaryReader object. This linkage ensures that the BinaryReader is properly connected to the FileStream, enabling the smooth flow of binary data.

One of the primary advantages of storing files in binary format is its optimal utilization of storage space. By representing data in binary form, it allows for more efficient storage and utilization of memory resources. This is especially beneficial when dealing with large files or datasets, as binary format often results in smaller file sizes compared to other formats.

Additionally, binary format provides a compact representation of data, which contributes to faster data processing and transmission. Since binary data is composed of bits and bytes, it is easily interpretable by computers and can be processed more quickly compared to other formats that require additional parsing or conversion steps.

Moreover, binary format offers enhanced data security and integrity. Binary files can incorporate encryption techniques, making them less susceptible to unauthorized access or tampering. This is particularly important when handling sensitive or confidential information, ensuring that data remains protected throughout its lifecycle.

Full Source VB.NET
Imports System.IO Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles Button1.Click Dim readStream As FileStream Dim msg As String Try readStream = New FileStream("c:\testBinary.dat", FileMode.Open) Dim readBinary As New BinaryReader(readStream) msg = readBinary.ReadString() MsgBox(msg) readStream.Close() Catch ex As Exception MsgBox(ex.ToString) End Try End Sub End Class

Binary format enables direct manipulation and interpretation of data at a lower level. It allows for precise control over individual bits and bytes, facilitating advanced operations such as bitwise calculations or low-level data manipulation. This level of control and granularity is crucial in various domains, including cryptography, network protocols, and embedded systems programming.


Using binary format for storing files provides several significant advantages, including efficient space utilization, faster data processing, improved data security, and enhanced control over data at a low-level. By considering these benefits, developers can make informed decisions regarding the most suitable data storage and representation formats for their specific applications and use cases.