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| namespace SimpleField.ViewModel
{
public class ValueReportViewModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
public ValueReportViewModel()
{
PropertyChanged += (sender, args) =>
{
switch (args.PropertyName)
{
case "Value":
case "UpperTreshold":
IsAboveUpperTreshold = Value > UpperTreshold;
break;
}
};
}
private static bool CustomEquals(double d1, double d2)
{
double tolerance = 0.001;
return Math.Abs(d1 - d2) <= tolerance;
}
private double _value;
public double Value
{
get { return _value; }
set
{
if (CustomEquals(value, _value)) return;
_value = value;
OnPropertyChanged();
}
}
private double _upperTreshold;
public double UpperTreshold
{
get { return _upperTreshold; }
set
{
if (CustomEquals(value, _value)) return;
_upperTreshold = value;
OnPropertyChanged();
}
}
private bool _isAboveUpperThreshold;
public bool IsAboveUpperTreshold
{
get { return _isAboveUpperThreshold; }
private set
{
if (_isAboveUpperThreshold == value) return;
_isAboveUpperThreshold = value;
OnPropertyChanged();
}
}
}
} |
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