How to convert byte array to an object in C#

By Tan Lee Published on Oct 28, 2024 1.35K

To convert a byte array back to an object in C#, you can use deserialization.

How to convert byte array to an object in C#?

For example:

public static T FromByteArray<T>(byte[] data)
{
    if (data != null)
    {
        using (MemoryStream ms = new MemoryStream(data))
        {
            object obj = new BinaryFormatter().Deserialize(ms);
            return (T)obj;
        }
    }
    return default(T);
}

Usage

[Serializable]
public class People
{
    public int Id { get; set; }
    public string Name { get; set; }
}
//Main.cs

byte[] byteArray = /* your byte array here */;
People obj = ByteArrayToObject<People>(byteArray);

When using BinaryFormatter, make sure the class is marked with [Serializable].

Tan Lee