C#•2y ago

❔ Deserializing Json to class

I have a text file wich I save my json to but when I try to deserialize it it never works. My json that is serialized looks fine bcs it even works when I run my json through an online converter. My Library class has 1 property that is an array of Movies.

 json = File.ReadAllText(FileName);
Library test = JsonConvert.DeserializeObject<Library>(json);
Debug.WriteLine(test._Movies.Length);

**Structure classes**
  public class Library
        {
            public Movie[] _Movies { private set; get; }
            public Library(Movie[] movies)
            {

                _Movies = movies;
            }
            public Library()
            {
                _Movies = new Movie[0];
            }
}
 public class Movie
        {
            public string _title { private set; get; }

            [JsonIgnore]
            public Image _Picture { private set; get; }
            public string _BasePic { private set; get; }
            public Movie(string title, Image picture)
            {
                _title = title;
                _Picture = picture;
                using (_Picture)
                {
                    using (MemoryStream m = new MemoryStream())
                    {
                        _Picture.Save(m, _Picture.RawFormat);
                        byte[] imageBytes = m.ToArray();

                        // Convert byte[] to Base64 String
                        string base64String = Convert.ToBase64String(imageBytes);
                       _BasePic = base64String;
                    }
                }

            }
          }

 json = File.ReadAllText(FileName);
Library test = JsonConvert.DeserializeObject<Library>(json);
Debug.WriteLine(test._Movies.Length);

**Structure classes**
  public class Library
        {
            public Movie[] _Movies { private set; get; }
            public Library(Movie[] movies)
            {

                _Movies = movies;
            }
            public Library()
            {
                _Movies = new Movie[0];
            }
}
 public class Movie
        {
            public string _title { private set; get; }

            [JsonIgnore]
            public Image _Picture { private set; get; }
            public string _BasePic { private set; get; }
            public Movie(string title, Image picture)
            {
                _title = title;
                _Picture = picture;
                using (_Picture)
                {
                    using (MemoryStream m = new MemoryStream())
                    {
                        _Picture.Save(m, _Picture.RawFormat);
                        byte[] imageBytes = m.ToArray();

                        // Convert byte[] to Base64 String
                        string base64String = Convert.ToBase64String(imageBytes);
                       _BasePic = base64String;
                    }
                }

            }
          }

15 Replies

hanslanda5019OP•2y ago

And my debug always returns 0

Google•2y ago

I ran some non-JSON through an online converter and it worked fine. When I tried it in C#, I got frustrated because it didn't work... because it wasn't JSON. Example:

{"character":"⺀","definition":"ice","pinyin":[],"decomposition":"？","radical":"⺀","matches":[null,null]}
{"character":"⺈","pinyin":[],"decomposition":"？","radical":"⺈","matches":[null,null]}
{"character":"⺊","pinyin":[],"decomposition":"⿰丨？","etymology":{"type":"ideographic","hint":"A crack on an oracle bone; compare 卜"},"radical":"⺊","matches":[[0],null]}

{"character":"⺀","definition":"ice","pinyin":[],"decomposition":"？","radical":"⺀","matches":[null,null]}
{"character":"⺈","pinyin":[],"decomposition":"？","radical":"⺈","matches":[null,null]}
{"character":"⺊","pinyin":[],"decomposition":"⿰丨？","etymology":{"type":"ideographic","hint":"A crack on an oracle bone; compare 卜"},"radical":"⺊","matches":[[0],null]}

in https://json2csharp.com/ works just fine, but it's not JSON. So you're probably best off checking the JSON.

hanslanda5019OP•2y ago

This is the Json I am trying to convert

MoviesList.txt

hanslanda5019OP•2y ago

I Serialized it like this File.WriteAllText(FileName, JsonConvert.SerializeObject(Lib)); @JamesK.Polk I am really stuck do you have any idea?

Google•2y ago

I don't know how to deserialize to a class like that. My models are usually just super simple/dumb classes. You're opening a stream during deserialization. I've never seen that before. I actually have a class where I serialize/deserialize stringified images, but I don't know how to help you with the way you want to do it.

hanslanda5019OP•2y ago

What are stringified images?

Google•2y ago

iVBORw0KGgoAAAANSUhEUgAAAE4AAACZCAYAAACBkQyKAAAABGdBTUEA...

hanslanda5019OP•2y ago

oh so just a string I could try that

Google•2y ago

hanslanda5019OP•2y ago

I am just stuck on saving an image to json

Google•2y ago

The image I just provided is in a JSON file I store then I compress the entire file for the user so they can transfer something smaller 9256 kb => 552kb compressed

hanslanda5019OP•2y ago

And how did you convert the Image to a string? And you can serialize /desirialize BitMapImage just fine?

Google•2y ago

Yeah. I just hacked a lot of stuff together. I haven't looked at these methods since.

hanslanda5019OP•2y ago

aight ty man

Accord•2y ago

Looks like nothing has happened here. I will mark this as stale and this post will be archived until there is new activity.

Gaming

Programming

❔ Deserializing Json to class