C# Xaml产生路径错误，但有些仍然有效

我遇到了一个绑定路径错误的情况。但是，有些绑定仍然可以工作，而有些则不能。我有以下类别（仅复制/粘贴相关位）：

代码隐藏：

class RSSManager : BaseViewModel
{
    #region Resources
    private Platforms _platformsList;

    public Platforms PlatformsList
    {
        get { return _platformsList; }
        set
        {
            _platformsList = value;
            NotifyPropertyChanged("PlatformsList");
        }
    }

    private List<IActivity> _mainActivitiesList = new List<IActivity>();

    public List<IActivity> MainActivitiesList
    {
        get { return _mainActivitiesList; }
        set
        {
            _mainActivitiesList = value;
            NotifyPropertyChanged("MainActivitiesList");
        }
    }

    private ObservableCollection<IActivity> _activitiesList = new ObservableCollection<IActivity>();

    public ObservableCollection<IActivity> ActivitiesList
    {
        get { return _activitiesList; }
        set
        {
            _activitiesList = value;
            NotifyPropertyChanged("ActivitiesList");
        }
    }

    private ObservableCollection<IActivity> _alertsList = new ObservableCollection<IActivity>();

    public ObservableCollection<IActivity> AlertsList
    {
        get { return _alertsList; }
        set
        {
            _alertsList = value;
            NotifyPropertyChanged("AlertsList");
        }
    }

    private ObservableCollection<IActivity> _invasionsList = new ObservableCollection<IActivity>();

    public ObservableCollection<IActivity> InvasionsList
    {
        get { return _invasionsList; }
        set
        {
            _invasionsList = value;
            NotifyPropertyChanged("InvasionsList");
        }
    }

    private ObservableCollection<IActivity> _outbreaksList = new ObservableCollection<IActivity>();

    public ObservableCollection<IActivity> OutbreaksList
    {
        get { return _outbreaksList; }
        set
        {
            _outbreaksList = value;
            NotifyPropertyChanged("OutbreaksList");
        }
    }

    private ObservableCollection<IActivity> _doneList = new ObservableCollection<IActivity>();

    public ObservableCollection<IActivity> DoneList
    {
        get { return _doneList; }
        set
        {
            _doneList = value;
            NotifyPropertyChanged("DoneList");
        }
    }

    #endregion

}

Activities.xaml：

<Page x:Class="Warframe_Activity_Manager.Views.Activities"
  DataContext="{Binding Source={RelativeSource Self}}"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
  xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
  mc:Ignorable="d" 
  d:DesignHeight="718" d:DesignWidth="1024"
  GotFocus="Page_GotFocus"
Title="Activities">

<Grid Name="MainGrid" Background="Transparent">
    <Grid.RowDefinitions>
        <RowDefinition Height="30" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <StackPanel Name="PlatformChoices" Orientation="Horizontal" Background="Transparent">
        <Label Name="ChoicePCLabel" Content="Show PC Activities" Foreground="Aqua" VerticalAlignment="Center"></Label>
        <CheckBox Name="ChoicePC" VerticalAlignment="Center" Click="Platform_Click"/>
        <Label Name="ChoicePS4Label" Content="Show PlayStation 4 Activities" Foreground="Aqua" VerticalAlignment="Center"></Label>
        <CheckBox Name="ChoicePS4" VerticalAlignment="Center" Click="Platform_Click"/>
        <Label Name="ChoiceXB1Label" Content="Show XBox One Activities" Foreground="Aqua" VerticalAlignment="Center"></Label>
        <CheckBox Name="ChoiceXB1" VerticalAlignment="Center" Click="Platform_Click"/>
    </StackPanel>
    <Button Name="Refresh" HorizontalAlignment="Right" Content="Refresh" Click="Refresh_Click"/>
    <TabControl Name="Tabs" Grid.Row="1" Background="Transparent">
        <TabItem Name="TabAll" Header="All Activities" BorderThickness="0">
            <ListView Name="ListAll" Background="Transparent" ItemsSource="{Binding ActivitiesList}" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="1*"/>
                                <ColumnDefinition Width="1*"/>
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="1*"/>
                                <RowDefinition Height="1*"/>
                            </Grid.RowDefinitions>
                            <StackPanel Name="ActivityTypeContainer" Orientation="Horizontal" HorizontalAlignment="Left">
                                <Label Name="ActivityTypeLabel" VerticalAlignment="Center" Foreground="Red" Content="Activity Type :"/>
                                <Label Name="ActivityType" VerticalAlignment="Center" Foreground="Red" Content="{Binding Path=Type}"/>
                            </StackPanel>
                            <StackPanel Name="ActivityPlatformContainer" Grid.Column="1" Orientation="Horizontal" HorizontalAlignment="Right" Margin="0, 0, 10, 0">
                                <Label Name="ActivityPlatformLabel"  VerticalAlignment="Center" Foreground="Blue" Content="Platform :"/>
                                <Label  Name="ActivityPlatform" VerticalAlignment="Center" Foreground="Blue" Content="{Binding Path=Platform}"/>
                            </StackPanel>
                            <StackPanel Name="ActivityInfoContainer" Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Left">
                                <Label Name="ActivityInfoLabel" VerticalAlignment="Center" Foreground="Orange" Content="Activity Information : "/>
                                <Label Name="ActivityInfo" VerticalAlignment="Center" Foreground="Orange" Content="{Binding Path=Info}"/>
                            </StackPanel>
                            <StackPanel Name="ActivityDoneContainer" Grid.Column="1" Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Right"  Margin="0, 0, 10, 0">
                                <Label Name="ActivityDoneLabel" VerticalAlignment="Center" Foreground="Green" Content="Finished : "/>
                                <CheckBox Name="ActivityDone" VerticalAlignment="Center" IsChecked="{Binding Path=Done, Mode=TwoWay}" Click="ActvityDone_Click"/>
                            </StackPanel>
                        </Grid>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>
        </TabItem>
    </TabControl>
</Grid>

错误：

System.Windows.Data错误：40:BindingExpression路径错误：在“对象”“相对资源”（HashCode=16143157）“上未找到“活动列表”属性。BindingExpression:Path=ActivitiesList；DataItem='RelativeSource'（HashCode=16143157）；目标元素是'ListView'（Name='ListAll'）；目标属性为“ItemsSource”（类型为“IEnumerable”） System.Windows.Data错误：40:BindingExpression路径错误：在“对象”“相对资源”（HashCode=16143157）“上未找到“AlertsList”属性。BindingExpression:Path=AlertsList；DataItem='RelativeSource'（HashCode=16143157）；目标元素是“ListView”（Name='ListAlerts'）；目标属性为“ItemsSource”（类型为“IEnumerable”） System.Windows.Data错误：40:BindingExpression路径错误：“在“对象”“相对资源”（HashCode=16143157）“上找不到InvasionsList”属性。BindingExpression:Path=InvasionsList；DataItem='RelativeSource'（HashCode=16143157）；目标元素是“ListView”（Name='ListInvisions'）；目标属性为“ItemsSource”（类型为“IEnumerable”） System.Windows.Data错误：40:BindingExpression路径错误：在“对象”“相对资源”（HashCode=16143157）“上找不到OutbreaksList”属性。BindingExpression:Path=OutbreaksList；DataItem='RelativeSource'（HashCode=16143157）；目标元素是'ListView'（Name='ListView'）；目标属性为“ItemsSource”（类型为“IEnumerable”） System.Windows.Data错误：40:BindingExpression路径错误：在“对象”“相对资源”（HashCode=16143157）“上找不到DoneList”属性。BindingExpression:Path=DoneList；DataItem='RelativeSource'（HashCode=16143157）；目标元素是'ListView'（Name='ListDone'）；目标属性为“ItemsSource”（类型为“IEnumerable”）

我还没有谈到分解模板的部分，但我认为这不是问题所在

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如上所述，即使我得到了错误，程序也显示了我想要的东西。但是，我接下来添加的绑定在输出给出相同错误类型（错误路径）的情况下根本不起作用。我做错了什么？

您正在XAML和构造函数中设置DataContext

删除XAML中的DataContext行，因为这会导致输出中出现错误：

DataContext="{Binding Source={RelativeSource Self}}"

在绑定失败的情况下，应用程序不会引发任何错误并停止应用程序，但会在输出中显示这些错误

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我发现在运行应用程序之前查看任何绑定错误的一个好方法是检查intellisense是否正常工作。如果是这样的话，那么您就可以开始了。

您正在XAML中设置DataContext，并且在后端代码的构造函数中也设置DataContext。我想这就是你的错误所在。删除XAML中的DataContext行，这应该可以帮到你了。这非常有效（尽管我确实想知道为什么它仍然有效）。我想验证你的答案，你能把它作为答案而不是评论吗？没问题。绑定有时是调试的难点。：-）顺便问一下，我如何检查intellisense是否正常工作？在XAML中键入绑定时，对象中的属性应该在intellisense列表中。嗯，这很奇怪，因为即使是现在，我也无法在列表中找到对象的属性。除非您正在谈论WPF对象中的“绑定”、“路径”、“模式”和所有其他内容。

DataContext="{Binding Source={RelativeSource Self}}"