private void Save_Click(object sender, RoutedEventArgs e) { if (string.IsNullOrEmpty(CategoryName.Text) || string.IsNullOrEmpty(CategoryDescription.Text)) { errM.Message = "All Feilds mark with asterisk(*) Are Required"; errM.Show(); } else { ItemLogic.AddCategory(CategoryName.Text, CategoryDescription.Text); sm.Message = "New category details saved successfully"; sm.Show(); Hide(); //ShowInTaskbar = false; //new AddCustomer().ShowDialog(); } }