Converting an object with a System.Drawing.Image into a json format

Question

Converting an object with a System.Drawing.Image into a json format

I'm facing a bit of a challenge and struggling to find a solution...

Within my interface (and implemented class), there is an image property...

    Guid uid { get; set; }
    Image imageData1 { get; set; }
    string fileName { get; set; }

The image is stored in the database as a byte[] and retrieving it is not a problem as I deserialize it to a dynamic type and then populate the desired object using a custom conversion function that I created for byte[] to image conversion.

However, the issue lies in the reverse direction...

string tmpJson = JsonConvert.SerializeObject( IclassOjbect );

This method serializes the class name of the image but doesn't include the image data as a byte array.

I can convert the image data to a byte[] outside of serialization, but I'm unsure how to insert it into tmpJSON instead of the "image class name" without resorting to risky string manipulation...

Any suggestions or ideas on how to approach this?

c#json serialization .net-4.5

Answer 1

Answer №1

Stumbled upon this while browsing the web, so I decided to share my insight, even though it's been a while:

[JsonIgnore]
public Image Picture { get; set; } = null;

public byte[] ConvertImageToBytes
{
    get
    {
        if (this.Picture != null)
        {
            using (var stream = new MemoryStream())
            {
                this.Picture.Save(stream, this.Picture.RawFormat);
                return stream.ToArray();
            }
        }

        return null;
    }

    set
    {
        if (value != null)
        {
            using (var stream = new MemoryStream(value))
            {
                this.Picture = Image.FromStream(stream);
            }
        }
    }
}

Answer 2

Stumbled upon this while browsing the web, so I decided to share my insight, even though it's been a while:

[JsonIgnore]
public Image Picture { get; set; } = null;

public byte[] ConvertImageToBytes
{
    get
    {
        if (this.Picture != null)
        {
            using (var stream = new MemoryStream())
            {
                this.Picture.Save(stream, this.Picture.RawFormat);
                return stream.ToArray();
            }
        }

        return null;
    }

    set
    {
        if (value != null)
        {
            using (var stream = new MemoryStream(value))
            {
                this.Picture = Image.FromStream(stream);
            }
        }
    }
}

Converting an object with a System.Drawing.Image into a json format

Answer №1

Similar questions

Looking for a way to efficiently add multiple value inputs to a JSON object using jQuery or JavaScript?

Discover a variety of web element types with FindElements() in Selenium using C#

Tips for creating JSON parser Entity Objects for Currency Converter API with this desired Output

Guidelines on transforming a Java Object list into JSON format and displaying it through AJAX requests

Converting JSONSchema into TypeScript: Creating a structure with key-value pairs of strings

Having trouble sending a HTTP Post request to a Web Service from my Android Application

Check out the HTML display instead of relying on console.log

Exploring data with JSON

How can we reduce the size of JSON array messages?

Customize JSON response formatting based on specific needs

I have a query regarding the load function and JSON

Automatically transitioning from a chatbot interface to an Ionic mobile app page as the conversation progresses

Error message: "Serialization of object to ajax/json cannot be completed

What is the best way to include a RecyclerView row in the WishList feature?

The ElasticClient encountered a problem while verifying the connection status

Unable to perform JSONArray conversion in Java (Android)

The JSON node fails to return a value after inserting data through an ajax request

I am having difficulty extracting an image from the JSON data retrieved from the service and displaying it in the recycler view

Dealing with the complexities of Jquery Ajax and WCF Webservice integration:

Parsing JSON and presenting it in a recycler-view card fragment