[英]Get clicked button on lostfocus event
我有一個UWP應用程序,該應用程序具有一系列帶有單擊事件的按鈕。 我還有一個文本框,我需要將注意力集中在應用程序的幾乎每次單擊/觸摸上。 所以我像這樣設置一個resetFocus函數:
public void resetfocus2(object sender, RoutedEventArgs e)
{
Username.Focus(FocusState.Programmatic);
}
觸發此文本框之外的每次點擊。
這是XAML中的按鈕
<ListView>
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Margin="4" Orientation="Vertical">
<StackPanel Orientation="Horizontal">
<Button Tag="{Binding id}" Grid.Column="0" Padding="0" BorderThickness="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="100" Background="White" Click="Meal1_Click">
<Image Width="100" Height="100" Source="{Binding idImg}" RelativePanel.AlignLeftWithPanel="True" />
</Button>
</StackPanel>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
我的問題是:
我如何才能調用通常在該函數內部單擊按鈕調用的函數?
由於lostfocus事件發生在點擊之前,因此永遠不會觸發點擊功能。
更新:這是從按鈕創建對話框的代碼:
public async void Meal1_Click(object sender, RoutedEventArgs e)
{
ServiziSoapClient service = new ServiziSoapClient();
var localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
var mealresponse = await service.SERVICE("PASSWORD", (sender as Button).Tag.ToString(), (string)localSettings.Values["stabilimento"]);
var response = JsonValue.Parse(mealresponse.Body.SERVICE).GetObject();
var notnull = 0;
try
{
var temp = response.GetNamedArray("OPTION");
}
catch (Exception exc)
{
Debug.WriteLine("Exception " + exc.Message);
notnull = 1;
}
JsonArray allergeni = null;
var piatto = response.GetNamedObject("OPTION2");
if (notnull == 0)
allergeni = response.GetNamedArray("OPTION");
var ingredienti = response.GetNamedString("OPTION3");
var btn = sender as Button;
var dialog = new ContentDialog()
{
Title = piatto.GetNamedString("descr"),
//RequestedTheme = ElementTheme.Dark,
//FullSizeDesired = true,
MaxWidth = this.ActualWidth // Required for Mobile!
};
// Setup Content
var panel = new StackPanel();
var defaultImageUri = new Uri("ms-appx:///Images/ic_placeholder_primi.png");
var bitmap = new BitmapImage();
bitmap.ImageFailed += (s, ex) => bitmap.UriSource = defaultImageUri;
bitmap.UriSource = new Uri("http://test-wsmensa.sinergest.it//WS/getImage.ashx?GETIN=B&&@pp2015Gi@BoS&ID_IMMAGINE=" + piatto.GetNamedNumber("idImg") + "&HEIGHT=100", UriKind.Absolute);
panel.Children.Add(new Image
{
Height = 400,
Width = 400,
Source = bitmap
});
panel.Children.Add(new TextBlock
{
TextWrapping = TextWrapping.Wrap,
FontSize = 20,
Text = "Ingredienti: " + ingredienti
});
dialog.Content = panel;
dialog.PrimaryButtonText = "Chiudi";
// Show Dialog
var result = await dialog.ShowAsync();
UserName.Focus(FocusState.Programmatic);
}
似乎您希望在單擊或點擊按鈕時按鈕不會聚焦。 如果是這樣,則可以將IsTabStop
屬性設置為false
以使按鈕無法接收輸入焦點。
如果IsTabStop為false ,則該控件將從選項卡導航中排除。 此外,如果IsTabStop為false ,則控件無法接收輸入焦點。 (如果嘗試通過編程方式設置焦點,則通過調用Focus方法, Focus返回false )。
因此,您可以像這樣更改XAML代碼:
<Button IsTabStop="False" Tag="{Binding id}" Grid.Column="0" Padding="0" BorderThickness="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="100" Background="White" Click="Meal1_Click">
此后,按鈕將不會出現焦點,並且如果您的文本框已獲得焦點,則當用戶單擊或點擊按鈕時,它將保持焦點。
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