If we want to retrive the image from the database then first we pick the image from the database and then convert it into the image :
Here I am store the image in to database in an byte array now I am converting that byte array in to an image :
Image MyImage = ConvertImage(imageData);
public static Image ConvertImage(object value)
{
     byte[] img;
     Image newImage;
     img = (byte[])value;
     //Read image data into a memory stream
     using (MemoryStream ms = new MemoryStream(img, 0, img.Length))
     {
        ms.Write(img, 0, img.Length);
        //Set image variable value using memory stream.
        newImage = Image.FromStream(ms, true);
     }
     return newImage;
}
picturebox1.Image = MyImage;

 
 
 
 
 
 
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