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using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
using System.ComponentModel;
using System.Runtime.CompilerServices;
#if UITEST
using Xamarin.UITest;
using NUnit.Framework;
#endif
namespace Xamarin.Forms.Controls.Issues
{
[Preserve(AllMembers = true)]
[Issue(IssueTracker.Bugzilla, 41619, "[WinRT/UWP] Slider binding works incorrectly", PlatformAffected.WinRT)]
public class Bugzilla41619 : TestContentPage
{
protected override void Init()
{
var vm = new Bugzilla41619ViewModel { SliderValue = 5 };
BindingContext = vm;
var label = new Label();
label.SetBinding(Label.TextProperty, "SliderValue");
var slider = new Slider
{
Maximum = 10,
Minimum = 1,
};
slider.SetBinding(Slider.ValueProperty, "SliderValue", BindingMode.TwoWay);
Content = new StackLayout
{
Children =
{
label,
slider,
new Label { Text = "The initial slider value above should be 5." }
}
};
}
class Bugzilla41619ViewModel : INotifyPropertyChanged
{
private double _sliderValue;
public double SliderValue
{
get { return _sliderValue; }
set
{
_sliderValue = value;
OnPropertyChanged();
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
}
}
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