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TimePicker.TimeChanged Ereignis

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Definition

Namespace:
Microsoft.UI.Xaml.Controls
Bearbeiten

Tritt ein, wenn der Wert der Time-Eigenschaft geändert wird.

// Register
event_token TimeChanged(EventHandler<TimePickerValueChangedEventArgs> const& handler) const;

// Revoke with event_token
void TimeChanged(event_token const* cookie) const;

// Revoke with event_revoker
TimePicker::TimeChanged_revoker TimeChanged(auto_revoke_t, EventHandler<TimePickerValueChangedEventArgs> const& handler) const;
public event System.EventHandler<TimePickerValueChangedEventArgs> TimeChanged;
function onTimeChanged(eventArgs) { /* Your code */ }
timePicker.addEventListener("timechanged", onTimeChanged);
timePicker.removeEventListener("timechanged", onTimeChanged);
- or -
timePicker.ontimechanged = onTimeChanged;
Public Custom Event TimeChanged As EventHandler(Of TimePickerValueChangedEventArgs) 
<TimePicker TimeChanged="eventhandler" />

Ereignistyp

EventHandler<TimePickerValueChangedEventArgs>

EventHandler<TimePickerValueChangedEventArgs>

Beispiele

<TimePicker TimeChanged="TimePicker_TimeChanged"/>
<TextBlock x:Name="resultText"/>

private void TimePicker_TimeChanged(object sender, TimePickerValueChangedEventArgs e)
{
    DateTime myTime = DateTime.Today + e.NewTime;
    var timeDiff = e.NewTime - e.OldTime;
    if (DateTime.Now >= myTime)
    {
        resultText.Text = "Your selected time has already past.";
    }
    else
    {
        string hrs = (myTime - DateTime.Now).Hours.ToString();
        string mins = (myTime - DateTime.Now).Minutes.ToString();
        resultText.Text = string.Format("Your selected time is {0} hours, {1} minutes from now.", hrs, mins);
    }
}

Gilt für:

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