C# WPF数据绑定和列表项访问

我有一个按钮点击方法，它填充一个列表，而这个列表又提供一个ListBox控件。方法和WPF结果如下所示：

     private void checkForThirdPartyUpdatesButton_Click(object sender, RoutedEventArgs e)
    {
        CheckforThirdPartyUpdatesButton.IsEnabled = false;


        worker = new BackgroundWorker();

        worker.DoWork += delegate(object s, DoWorkEventArgs args)
        {
            MainEntry.checkFor3PUpdates();

        };

        worker.RunWorkerCompleted += delegate(object s, RunWorkerCompletedEventArgs args)
        {

            if (comparisonStateView.Count == 0)
            {
                foreach (var item in RegScan_ThirdParty.comparisonListWithState)
                {
                    comparisonStateView.Add(item);
                }
            }

            ThirdPartyListBox.DataContext = comparisonStateView;

            CheckforThirdPartyUpdatesButton.IsEnabled = true;

        };

        worker.RunWorkerAsync();
    }

我正在尝试添加代码，以检查已使用的延迟数，并在符合该条件的每个列表框项目中禁用“延迟”按钮。此调整后的代码执行我想要的逻辑，但它禁用了错误的按钮：

    private void checkForThirdPartyUpdatesButton_Click(object sender, RoutedEventArgs e)
    {
        CheckforThirdPartyUpdatesButton.IsEnabled = false;


        worker = new BackgroundWorker();

        worker.DoWork += delegate(object s, DoWorkEventArgs args)
        {
            MainEntry.checkFor3PUpdates();

        };

        worker.RunWorkerCompleted += delegate(object s, RunWorkerCompletedEventArgs args)
        {

            if (comparisonStateView.Count == 0)
            {
                foreach (var item in RegScan_ThirdParty.comparisonListWithState)
                {
                    comparisonStateView.Add(item);
                }
            }

            ThirdPartyListBox.DataContext = comparisonStateView;

            CheckforThirdPartyUpdatesButton.IsEnabled = true;

            foreach (var rowItem in comparisonStateView)
            {
                if (rowItem.Item3.UsedDeferrals >= rowItem.Item2.MaxDefferals)
                {
                    Button ThirdPartyPostponeButton = sender as Button;
                    ThirdPartyPostponeButton.IsEnabled = false;
                }

            }

        };

        worker.RunWorkerAsync();
    }

结果:

关于如何达到预期效果，有什么想法吗？我将提供最后一段代码，说明如何绑定和使用“推迟”按钮，以防它有所帮助：

   private void postponeThirdPartyUpdatesButton_Click(object sender, RoutedEventArgs e)
    {

        var context = ((FrameworkElement)sender).DataContext as Tuple<RegScan_ThirdParty.InstalledApplicationFromRegistryScan, RegScan_ThirdParty.ManifestRequiredApplication, RegScan_ThirdParty.RequiredApplicationState>;

        foreach (var rowItem in comparisonStateView)
        {
            if (rowItem.Item1.Name == context.Item1.Name)
            {
                comparisonStateView.Remove(rowItem);
                break;
            }

        }

        Button ThirdPartyPostponeButton = sender as Button;
        ThirdPartyPostponeButton.IsEnabled = false;

        if (context != null)
        {
            RegScan_ThirdParty.registryApplicationPostponeWorkflow(context);
        }

        ThirdPartyPostponeButton.IsEnabled = true;
    }

private void postponethirdpartyUpdates按钮单击（对象发送者，路由目标）
{
var context=（（FrameworkElement）sender.DataContext作为元组；
foreach（comparisonStateView中的变量rowItem）
{
if（rowItem.Item1.Name==context.Item1.Name）
{
comparisonStateView.Remove（行项目）；
打破
}
}
按钮第三方PostPoneButton=发送方为按钮；
第三方PostPoneButton.IsEnabled=false；
if（上下文！=null）
{
RegScan_ThirdParty.registryApplicationsUpposeWorkflow（上下文）；
}
第三方PostPoneButton.IsEnabled=true；
}

您是说应该禁用推迟按钮而不是第三方推迟按钮吗？是的，这是正确的。我可以看到您只是将

IsEnabled

设置为

第三方推迟按钮

？您禁用推迟按钮的代码在哪里？它位于第二个发布的代码块中：

ThirdPartyPostponeButton.IsEnabled=false我想看看你的观点