private void OnConfirmChangePictureCommand(object obj) { if (ProfilePictureSource == null && PicturePath == null) { warningAudio.SpeakAsync("You have not selected a picture yet. Click browse to select one.."); return; } UserImage data = new UserImage(); var ImagePath = PicturePath; var ImageToByte = File.ReadAllBytes(PicturePath); ST.AddNewUserImage(ImagePath, ImageToByte, Students[0].StudentID); ST.SaveChanges(); warningAudio.SpeakAsync("Change successfully.."); }