PictureBox imageBackground

Question

 1. Question:  i like to save this image background(see on photo inserted) in my database if there is no upload photo in picture box. how i can do that? the because i am getting this catch message

Object reference not set to an instance of an object

 //Converting Image

public string ImageToBase64(Image image, System.Drawing.Imaging.ImageFormat format)

{

using (MemoryStream ms = new MemoryStream())

{

// Convert Image to byte[]

image.Save(ms, format);

byte[] imageBytes = ms.ToArray();

// Convert byte[] to Base64 String

string base64String = Convert.ToBase64String(imageBytes);

return base64String;

}

}

 

// Inserting Image to database

cmd.Parameters.Add("@Image", SqlDbType.VarChar).Value = Convert.ToString(ImageToBase64(pbPicture.Image, System.Drawing.Imaging.ImageFormat.Jpeg));