public BookShelf(string currentUsername)
{
InitializeComponent();
this.username = currentUsername;
dynamoDbOperation = new DDBOperation();
string userFirstName = dynamoDbOperation.GetFirstName(username);
Firstlbl.Content = userFirstName + "!";
//Loading the Book Shelf of the User
BooksIntoDataGrid();
//Adding date and time inside the ReadDateTime textbox
datetimeTxt.Text = DateTime.Now.ToString();
}