给出一个GridView
,例如
<GridView IsItemClickEnabled="True" ItemClick="favorite_clicked" ItemsSource="{x:Bind MainViewModel.FavoriteBinders}" Grid.Column="1">
<GridView.ItemTemplate>
<DataTemplate x:DataType="local:FavoriteBinder">
<StackPanel AccessKey="{x:Bind CedictId, Mode=OneWay}" Width="200" Margin="20">
<TextBlock Text="{x:Bind Simplified, Mode=OneWay}" FontWeight="Bold"
/>
<TextBlock Text="{x:Bind Pinyin, Mode=OneWay}" TextWrapping="NoWrap"
/>
</StackPanel>
</DataTemplate>
</GridView.ItemTemplate>
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<ItemsWrapGrid MaximumRowsOrColumns="7"/>
</ItemsPanelTemplate>
</GridView.ItemsPanel>
其中填充了类型FavoriteBinder
,该类型具有一个名为id的int32_t字段。
还有一个点击功能,如下所示:
void FavoritesPage::favorite_clicked(
Windows::Foundation::IInspectable const& sender,
Windows::UI::Xaml::RoutedEventArgs const& args)
{
}
如何获取我在favourite_clicked函数中被点击的商品的ID?
答案 0 :(得分:2)
在favorite_clicked事件中,可以通过 e.ClickedItem()方法获取单击的FavoriteBinder类,并使用 .as 方法将对象转换为FavoriteBinder类型。
SELECT MEAN(value) FROM tbl WHERE name = 'Olli' -- all time mean, used directly in final query
-- for the short term mean I use a CTE:
WITH short_term_tbl AS (SELECT * FROM tbl WHERE name = 'Olli' ORDER BY Date DESC LIMIT 3)
SELECT MEAN(short_term_tbl.value) / MEAN(table.value)
FROM short_term_tbl, tbl