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myclass hd has 2 members, string1 and string2. I want to send the myclass data to a file test.dat using BinaryFormatter.
I could not
if BinaryFormatter is obsolete. Please let me know the alternative.

What I have tried:

C#
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;

        BinaryFormatter formatter = new BinaryFormatter();
        FileStream output;

//hd is a class filled from 2 textBox
output = new FileStream("test.dat", FileMode.OpenOrCreate, FileAccess.Write);
formatter.Serialize(output, hd);
output.Close();
Posted
Updated 28-Aug-23 9:14am
v4
Comments
[no name] 27-Aug-23 14:48pm    
You should be focusing on the class you're trying to serialize (other than simply "commenting" that it "exists" somewhere).

1 solution

BinaryFormatter is obsolete, and as the documentation clearly says, you shouldn't be using it in new projects: BinaryFormatter.Serialize Method (System.Runtime.Serialization.Formatters.Binary) | Microsoft Learn[^]

This suggests some alternatives: Deserialization risks in use of BinaryFormatter and related types | Microsoft Learn[^]

If there is a reason why you absolutely need a binary output (compatibility with some other software or hardware for example) then this may help: ByteArrayBuilder - A StringBuilder for Bytes[^]
 
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Comments
Engineer khalid 28-Aug-23 6:05am    
i used binaryWriter and BinaryReader instead .it seems i will have a question about class size ,i might post it later

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