Create array of images from array of objects in WCF web service

Question

I have a 2D array of chairs like this: chairs[][] also here is my chair class:

public class Chair
{
    public int State;
    public int number;
}

Each object of class represent a seat in a theater (state indicates the seat status; 0 means empty, 1 means reserved and number indicates the seat number).

Let's assume that I have these values:

    0   0   0   1
    1   1   1   0
    0   1   0   1

I want to create array of images like this:

and finally convert it to array of bytes and return it as web service output. long story short i want to convert array of chair[][] to the images. my web service input will be chairs[][] and output will be byte[].

Is this possible?

UPDATE:

here i created something in windows desktop application. i just need create it in wcf. i have now idea how can create Picturebox or Labal in wcf!!!

{
    AutoScroll = true;
    int x = 10, y = 10;

    Chair[][] chairs = new Chair[3][];
    chairs[0] = new Chair[4] { new Chair { number = 1, State = 0 }, new Chair { number = 2, State = 0 }, new Chair { number = 3, State = 0 }, new Chair { number = 4, State = 1 } };
    chairs[1] = new Chair[4] { new Chair { number = 5, State = 1 }, new Chair { number = 6, State = 1 }, new Chair { number = 7, State = 1 }, new Chair { number = 8, State = 0 } };
    chairs[2] = new Chair[4] { new Chair { number = 9, State = 0 }, new Chair { number = 10, State = 1 }, new Chair { number = 11, State = 0 }, new Chair { number = 12, State = 1 } };

    Label[][] label = new Label[chairs.Length][];
    PictureBox[][] picturebox = new PictureBox[chairs.Length][];

    for (int i = 0; i < chairs.Length; i++)
    {
        label[i] = new Label[chairs[i].Length];
        picturebox[i] = new PictureBox[chairs[i].Length];


        for (int j = 0; j < chairs[i].Length; j++)
        {
            label[i][j] = new Label();
            picturebox[i][j] = new PictureBox();

            Controls.Add(label[i][j]);
            Controls.Add(picturebox[i][j]);

            label[i][j].Location = new Point(x, y + 50);
            picturebox[i][j].Location = new Point(x, y);

            label[i][j].Size = new Size(100, 20);
            picturebox[i][j].Size = new Size(50, 50);

            label[i][j].Text = i + "*" + j + "(" + chairs[i][j].number + ")";
            if (chairs[i][j].State == 0) picturebox[i][j].Image = Image.FromFile(@"C:\Users\Admin\Desktop\1\1.png");
            else picturebox[i][j].Image = Image.FromFile(@"C:\Users\Admin\Desktop\1\2.png");

            x = x + 100;
        }
        x = 10;
        y = y + 100;
    }

Is it ok for you if chairs are serialized over the network, being passed to a web service or returned from a web service ? — Emmanuel DURIN
– Emmanuel DURIN, Commented Nov 3, 2015 at 13:05
dear @Emmanuel honestly i didn't get it what you asking. but long story short i want convert array of class to the images. my web service input is chairs[][] and output is byte[]. i hope i could explain it. — Mohammad
– Mohammad, Commented Nov 3, 2015 at 13:13
You can edit and remove the sentence about silly questions (they don't exist). But it 's important that we understand ! What do you expect to be in the byte [] ? ... Some png picture ... ? — Emmanuel DURIN
– Emmanuel DURIN, Commented Nov 3, 2015 at 13:21
done :). let me put it this way: i have a string of 0101... and i want to create array of images from 01 string. if string[i]=0 replace it with image1.png else replace it with image2.png. Ive also done it in a windows form application. so sorry. I'm doing my best to explain it but its really hard to explain. — Mohammad
– Mohammad, Commented Nov 3, 2015 at 13:26
if I understand well you want to receive the image in PNG format as a byte[] - a single image for all the theater, right ? — Emmanuel DURIN
– Emmanuel DURIN, Commented Nov 3, 2015 at 13:35

dodger_dev · Accepted Answer · 2015-11-03 13:30:18Z

1

string firstText = "Hello";
string secondText = "World";

PointF firstLocation = new PointF(10f, 10f);
PointF secondLocation = new PointF(10f, 50f);

string imageFilePath = @"path\picture.bmp"
Bitmap bitmap = (Bitmap)Image.FromFile(imageFilePath);//load the image file

using(Graphics graphics = Graphics.FromImage(bitmap))
{
   using (Font arialFont =  new Font("Arial", 10))
   {
       graphics.DrawString(firstText, arialFont,Brushes.Blue,firstLocation);
       graphics.DrawString(secondText,arialFont,Brushes.Red,secondLocation);
    }
}

bitmap.Save(imageFilePath);//save the image

answered Nov 3, 2015 at 13:30

dodger_dev

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3 Comments

dodger_dev Over a year ago

Try this, u can create 2 templates - with "R" end empty Chair, leave the place for numbers empty and try this code

Mohammad Over a year ago

thank you. its sort of my answer. but how can put array of this images in one image? like my image in my question?

dodger_dev Over a year ago

u can just create a big empty image/bitmap with height = sum of heigths of your array images in one column(for e.g. 3 rows in column with each image height = 200 pixels, so big image height = 3*200 = 600 and do the same with width) then just use Graphics class to draw each of yours images on this bitmap

dodger_dev · Accepted Answer · 2015-11-03 12:40:51Z

1

First - https://msdn.microsoft.com/en-us/library/vstudio/ms734712(v=vs.100).aspx

then

// Service side
[ServiceContract(Name = "chairs-image-generator")]
public interface IChairsImageArrayGenerator
{
    // insted byte[] paste desirable type of image
    [OperationContract(Name = "generate-images")]
    IEnumerable<byte[]> GenerateImage(IEnumerable<byte[][]> chairs);
}

// Client side
[ServiceContract(Name = "chairs-image-generator")]
public interface IChairsImageArrayGeneratorClient
{
    [OperationContract(Name = "generate-images")]
    IEnumerable<byte[]> GenerateImages(IEnumerable<byte[][]> chairs);
}

public class ChairsImageGenerator : IChairsImageArrayGenerator
{
    public IEnumerable<byte[]> GenerateImages(IEnumerable<byte[][]> chairs)
    {
        // put here your realization 
    }
}

answered Nov 3, 2015 at 12:40

dodger_dev

465 bronze badges

3 Comments

Mohammad Over a year ago

thank you dear @android_dev_123. but its not what i want!! i guess i clearly explained what exactly i want.

dodger_dev Over a year ago

tell me more exactly what troubles u have - 1) creating a WCF service 2) creating an image from Chair class? or with smth else?

Mohammad Over a year ago

thank you so much, creating an image from Chair class is my concern.

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