好吧,所以我迷上了這個問題,這裏是使用SearchBox時的解決方案。我對MSDN和GitHub
上傳了全樣本總之,使用行爲SDK和與InvokeCommand,然後使用一個轉換器來抓住你需要使用新的屬性InputConvert和InputConverterParameter任何數據。
XAML:
<SearchBox SearchHistoryEnabled="False" x:Name="SearchBox" Width="500" Height="50">
<SearchBox.Resources>
<local:SearchArgsConverter x:Name="ArgsConverter"/>
</SearchBox.Resources>
<interactivity:Interaction.Behaviors>
<core:EventTriggerBehavior EventName="SuggestionsRequested">
<core:InvokeCommandAction
Command="{Binding SuggestionRequest}"
InputConverter="{StaticResource ArgsConverter}"
InputConverterLanguage="en-US"
InputConverterParameter="{Binding ElementName=SearchBox, Path=SearchHistoryEnabled}"/>
</core:EventTriggerBehavior>
</interactivity:Interaction.Behaviors>
</SearchBox>
轉換器:
public sealed class SearchArgsConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
var args = (SearchBoxSuggestionsRequestedEventArgs)value;
var displayHistory = (bool)parameter;
if (args == null) return value;
ISuggestionQuery item = new SuggestionQuery(args.Request, args.QueryText)
{
DisplayHistory = displayHistory
};
return item;
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
return value;
}
}
Mainpade代碼隱藏 - 當然你想這個在一個虛擬機:)
public sealed partial class MainPage
{
public DelegateCommand<string> Search { get; set; }
public DelegateCommand<ISuggestionQuery> SuggestionRequest { get; set; }
public MainPage()
{
InitializeComponent();
Search = new DelegateCommand<string>(SearchedFor, o => true);
SuggestionRequest = new DelegateCommand<ISuggestionQuery>(SuggestionRequestFor, o => true);
DataContext = this;
}
private void SuggestionRequestFor(ISuggestionQuery query)
{
IEnumerable<string> filteredQuery = _data
.Where(suggestion => suggestion.StartsWith(query.QueryText,
StringComparison.CurrentCultureIgnoreCase));
query.Request.SearchSuggestionCollection.AppendQuerySuggestions(filteredQuery);
}
private readonly string[] _data = { "Banana", "Apple", "Meat", "Ham" };
private void SearchedFor(string queryText)
{
}
}
我通過上寫了一個完整的步行我的博客,但以上是你真正需要的:)
林在我的手機上如此生病添加此評論,而不是答案。查看MVVM Light中的EventToCommand。這就是類似情況下所做的。不好意思抓住我的電腦,稍後再舉一個例子,但如果你很着急,這應該給你一個開始。 –
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