【发布时间】:2017-01-17 06:09:31
【问题描述】:
我在我的应用中创建了一个列表视图,我想为它添加搜索栏。我已经浏览了很多论坛,但并没有得到它。我知道我必须使用AutoSuggestBox,但没有得到正确的方法。这是我的代码,希望有人能帮助解决它..
<Grid>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<StackPanel Orientation="Horizontal" Grid.Column="1" Padding="15,0,0,0">
<AutoSuggestBox PlaceholderText="Search" TextChanged="autosuggesttextchanged" QuerySubmitted="autosuggestquerysubmitted" SuggestionChosen="autosuggestsuggestionchosen"/>
</StackPanel>
<ListView x:Name="list" ItemsSource="{Binding Source={StaticResource herolistview}}" ItemClick="itemclicked" IsItemClickEnabled="True" Margin="5,0,0,0" Grid.Row="1" Grid.ColumnSpan="2">
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<StackPanel Orientation="Horizontal" Padding="0,4">
<Image Height="50" Width="88" Source="{Binding image}"></Image>
<TextBlock Text="{Binding name}" HorizontalAlignment="Center" Foreground="White" Padding="8,0,0,0"></TextBlock>
</StackPanel>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<TextBlock Text='{Binding key}' FontWeight="Bold" FontSize="20"/>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<VariableSizedWrapGrid MaximumRowsOrColumns="2"/>
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</ListView.GroupStyle>
</ListView>
</Grid>
</Grid>
.cs 文件
public sealed partial class MainPage : Page
{
ObservableCollection<mainpageclass> hlist = new ObservableCollection<mainpageclass>();
public MainPage()
{
this.InitializeComponent();
Filldata();
}
void Filldata()
{
hlist.Add(new mainpageclass { name = "Aba" });
hlist.Add(new mainpageclass { name = "Al" });
hlist.Add(new mainpageclass { name = "Anon" });
hlist.Add(new mainpageclass { name = "An"});
hlist.Add(new mainpageclass { name = "Aren" });
hlist.Add(new mainpageclass { name = "Boe"});
list.ItemsSource = hlist;
}
private void autosuggesttextchanged(AutoSuggestBox sender, AutoSuggestBoxTextChangedEventArgs args)
{
if (args.Reason == AutoSuggestionBoxTextChangeReason.UserInput)
{
}
}
private void autosuggestquerysubmitted(AutoSuggestBox sender, AutoSuggestBoxQuerySubmittedEventArgs args)
{
}
private void autosuggestsuggestionchosen(AutoSuggestBox sender, AutoSuggestBoxSuggestionChosenEventArgs args)
{
}
}
}
【问题讨论】:
-
我现在无法测试您的代码。尝试在 autosuggesttextchanged 方法中编写代码,在 hlist ObservableCollection 中执行搜索。此集合是您的 ListView 的数据源,因此如果您使用 LINQ 进行过滤,ListView 会使用新内容更新自身。
标签: c# xaml listview uwp autosuggest