How Do I Convert a Byte Array to a Hexadecimal String in C#?

Convert byte array to hexadecimal string in C#

In programming, converting a byte array to a string is a common task. However, getting the actual value rather than just the "System.Byte[]" placeholder can be difficult. Furthermore, converting values ​​to hexadecimal format is another frequently encountered need.

Convert byte array to string

To convert a byte array to a string, you can use the built-in methods in the System library:

<code class="language-csharp">myByteArray.ToString();</code>

This method will return the string representation of the byte array, such as "[0, 1, 2, 3, 4]".

Convert value to hexadecimal

To convert a value to hexadecimal format, you can use another built-in method in the System.BitConverter class:

<code class="language-csharp">result = System.BitConverter.ToString(myByteArray);</code>

The result will be a string in hexadecimal format, such as "01-02-04-08-10-20".

Further customization

If you want to remove dashes from a hex string, you can do this by replacing them with an empty string:

<code class="language-csharp">string result = System.BitConverter.ToString(myByteArray).Replace("-", String.Empty);</code>

This will give you a hex string without dashes.

Alternative notation

Another way to represent a byte array is to use Base64 encoding:

<code class="language-csharp">string base64Encoded = System.Convert.ToBase64String(myByteArray);</code>

This will generate an encoded string such as "AQIECBAg". Base64 encoding is useful when working with binary data that may contain special characters.

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