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..");
}