protected virtual bool SetProperty <T>(ref T field, T value, [CallerMemberName] string propertyName = null)
{
if (EqualityComparer <T> .Default.Equals(field, value))
{
return(false);
}
field = value;
var ignore = DispatcherHelper.DispatchAsync(() =>
{
OnPropertyChanged(propertyName);
});
return(true);
}