Wpf DataTrigger绑定设置程序属性不工作

需要根据数据库查询更改按钮可见性。我在下面试过了，但没有达到我的预期<代码>AlarmEnableStatus会按预期更改值，但UI不会更改

HomeView.xaml

<Button x:Name="AlarmButton" Content="Warning!" 
  Margin="12,0,6,0" BorderThickness="1" Width="100" Height="30" 
  Style="{StaticResource AlarmButtonStyle}"
  Foreground="#717171" FontWeight="SemiBold" FontSize="17"/>

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<Style x:Key="AlarmButtonStyle" TargetType="Button" BasedOn="{StaticResource CornerRadiusButtonStyle}">
   <Setter Property="Visibility" Value="Visible"/>
   <Style.Triggers>
       <DataTrigger Binding="{Binding AlarmEnableStatus}" Value="False">
            <Setter Property="Visibility" Value="Hidden"/>
       </DataTrigger>
   </Style.Triggers>
</Style>

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AlarmEnableStatus属性不会触发更改通知。考虑实现IntIfyPrimTyC改接口并从属性设置器中激发其属性更改的事件。谢谢@克莱门斯。不知道INotifyPropertyChanged的

public bool AlarmEnableStatus { get; private set; }

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DispatcherTimer timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromSeconds(60);
timer.Tick += timer_Tick;
timer.Start();

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private void timer_Tick(object sender, EventArgs e)
{
  int isCount = HeaderDataSet.PendingFailedCount;
    if ((!AlarmEnableStatus) & (isCount > 0))
    {
       AlarmEnableStatus = true;      
    }
    else
   {
      AlarmEnableStatus = false;
  }
}