private void btnEdit_Click(object sender, RoutedEventArgs e)
        {
            Storyboard sb;
            if (_isExpanded != true)
            {
                sb = this.FindResource("gridin") as Storyboard;
                sb.Begin(this);
                _isExpanded = !_isExpanded;
            }

            var selectedCategory = dcProductList.SelectedItem as ProductCategoryView;

            if (selectedCategory != null)
            {
                ProductCategoryForm.ProdCategoryId = selectedCategory.CategoryID;

                var page = new ProductCategoryForm();
                navigation.Navigate(page);
            }
            else
            {
                NullMessage();
            }
        }
        //private void btnView_Click(object sender, RoutedEventArgs e)
        //{
        //    var selectedprod = dcProductList.SelectedItem as ProductCategoryView;

        //    Storyboard sb;
        //    if (_isExpanded != true && selectedprod != null)
        //    {
        //        ProductCategoryDetails.ProdCategoryId = selectedprod.CategoryID;

        //        sb = this.FindResource("gridin") as Storyboard;
        //        sb.Begin(this);
        //        _isExpanded = !_isExpanded;

        //        var page = new ProductCategoryDetails();
        //        navigation.Navigate(page);
        //    }
        //    else
        //    {
        //        sb = this.FindResource("gridout") as Storyboard;
        //        sb.Begin(this);
        //        _isExpanded = !_isExpanded;

        //        LoadActivity();
        //    }
        //}

        private void btnAdd_Click(object sender, RoutedEventArgs e)
        {
            ProductCategoryForm.ProdCategoryId = 0;

            Storyboard sb;
            if (_isExpanded != true)
            {
                sb = this.FindResource("gridin") as Storyboard;
                sb.Begin(this);
                _isExpanded = !_isExpanded;
            }

            var page = new ProductCategoryForm();
            navigation.Navigate(page);
        }