hi

try the below code for generating the image from byte array and assign the generated image to the control.

private void byteArrayToImage(byte[] byteArrayIn)
    {
        System.Drawing.Image newImage;
 
        string strFileName = GetTempFolderName() + "yourfilename.gif";
        if (byteArrayIn != null)
        {
            using (MemoryStream stream = new MemoryStream(byteArrayIn))
            {
                newImage = System.Drawing.Image.FromStream(stream);
 
                newImage.Save(strFileName);
 
                img.Attributes.Add("src", strFileName);
            }
 
            lblMessage.Text = "The image conversion was successful.";
        }
        else
        {
            Response.Write("No image data found!");
        }
    }

hope it helps.thanks,