public void AddNewSecondaryCategory()
        {
            DataManager dataManager = new DataManager(connectionString);
            string newSecCat = GetNewSecCat();
            string selectedPrimeCat = GetSelectedPrimeCat();

            if(newSecCat != string.Empty && selectedPrimeCat != string.Empty)
            {
                dataManager.InsertSecondaryCategory(newSecCat,selectedPrimeCat);
                MessageBox.Show(string.Format("You Have Just Added: {0}",newSecCat));
                this.Close();
            }
        }