SearchBoxSuggestionsRequestedEventArgs 类
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
提供 SearchBox.SuggestionsRequested 事件的事件数据。
public ref class SearchBoxSuggestionsRequestedEventArgs sealed
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class SearchBoxSuggestionsRequestedEventArgs final
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class SearchBoxSuggestionsRequestedEventArgs final
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class SearchBoxSuggestionsRequestedEventArgs
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class SearchBoxSuggestionsRequestedEventArgs
Public NotInheritable Class SearchBoxSuggestionsRequestedEventArgs
- 继承
- 属性
Windows 要求
设备系列 |
Windows 10 (在 10.0.10240.0 中引入)
|
API contract |
Windows.Foundation.UniversalApiContract (在 v1.0 中引入)
|
示例
如果要异步响应 SuggestionsRequested 事件,则必须在编辑建议列表之前获取 SearchSuggestionsRequestDeferral 对象。 下面是一个演示方法的示例。
public async static void SearchBox_SuggestionsRequested(
SearchBox sender,
SearchBoxSuggestionsRequestedEventArgs args)
{
// This object lets us edit the SearchSuggestionCollection asynchronously.
var deferral = args.Request.GetDeferral();
try {
// Retrieve the system-supplied suggestions.
var suggestions = args.Request.SearchSuggestionCollection;
var groups = await SampleDataSource.GetGroupsAsync();
foreach (var group in groups)
{
var matchingItems = group.Items.Where(
item => item.Title.StartsWith(
args.QueryText, StringComparison.CurrentCultureIgnoreCase));
foreach (var item in matchingItems)
{
suggestions.AppendQuerySuggestion(item.Title);
}
}
foreach (string alternative in args.LinguisticDetails.QueryTextAlternatives)
{
if (alternative.StartsWith(
args.QueryText, StringComparison.CurrentCultureIgnoreCase))
{
suggestions.AppendQuerySuggestion(alternative);
}
}
}
finally {
deferral.Complete();
}
}
注解
重要
尽管已在通用设备系列中实现了 SearchBox,但它无法在移动设备上正常运行。 将 AutoSuggestBox 用于通用搜索体验。 请参阅弃用 SearchBox 以支持 AutoSuggestBox。
属性
Language |
获取 Internet 工程任务组 (IETF) 语言标记 (BCP 47 标准) ,该标记标识当前与用户的文本输入设备关联的语言。 |
LinguisticDetails |
获取有关用户通过输入法编辑器输入的查询文本的信息, (输入法) 。 |
QueryText |
获取当前搜索的查询文本。 |
Request |
获取对象,该对象存储有关此请求的建议和信息。 |