c# image to byte array code example

Example 1: how to convert iformfile to byte array c#

foreach (var file in files)
{
  if (file.Length > 0)
  {
    using (var ms = new MemoryStream())
    {
      file.CopyTo(ms);
      var fileBytes = ms.ToArray();
      string s = Convert.ToBase64String(fileBytes);
      // act on the Base64 data
    }
  }
}

Example 2: c# image to byte array

public byte[] ImageToByteArray(System.Drawing.Image imageIn)
{
   using (var ms = new MemoryStream())
   {
      imageIn.Save(ms,imageIn.RawFormat);
      return  ms.ToArray();
   }
}

Example 3: Image to byte array C#

using System;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            //image to byteArray
            Image img = Image.FromFile("d:\\bank-copy.png");
            byte[] bArr = imgToByteArray(img);
            //byte[] bArr = imgToByteConverter(img);
            //Again convert byteArray to image and displayed in a picturebox
            Image img1 = byteArrayToImage(bArr);
            pictureBox1.Image = img1;
        }
        //convert image to bytearray
        public byte[] imgToByteArray(Image img)
        {
            using (MemoryStream mStream = new MemoryStream())
            {
                img.Save(mStream, img.RawFormat);
                return mStream.ToArray();
            }
        }
        //convert bytearray to image
        public Image byteArrayToImage(byte[] byteArrayIn)
        {
            using (MemoryStream mStream = new MemoryStream(byteArrayIn))
            {
                return Image.FromStream(mStream);
            }
        }
        //another easy way to convert image to bytearray
        public static byte[] imgToByteConverter(Image inImg)
        {
            ImageConverter imgCon = new ImageConverter();
            return (byte[])imgCon.ConvertTo(inImg, typeof(byte[]));
        }
    }
}