我遇到一个绑定路径错误的情况。但是，一些绑定仍然有效，而其他绑定则无效。我有以下类（仅复制/粘贴相关位）：
代码背后：
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
}
public partial class Activities : Page, IOptions
{
Options.OptionsActivities _options = new Options.OptionsActivities();
RSSManager _manager = new RSSManager();
public Activities()
{
InitVars();
InitializeComponent();
DataContext = _manager;
UpdateCheckBoxes();
UpdateTabsHeaders();
}
}
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：'objects''找不到'object'''RelativeSource'（HashCode = 16143157）'。 BindingExpression：路径= ActivitiesList; DataItem ='RelativeSource'（HashCode = 16143157）; target元素是'ListView'（Name ='ListAll'）; target属性是'ItemsSource'（输入'IEnumerable'） System.Windows.Data错误：40：BindingExpression路径错误：'对象'''RelativeSource'（HashCode = 16143157）'上找不到'AlertsList'属性。 BindingExpression：路径= AlertsList; DataItem ='RelativeSource'（HashCode = 16143157）; target元素是'ListView'（Name ='ListAlerts'）; target属性是'ItemsSource'（输入'IEnumerable'） System.Windows.Data错误：40：BindingExpression路径错误：'对象'''RelativeSource'（HashCode = 16143157）'上找不到'InvasionsList'属性。 BindingExpression：路径= InvasionsList; DataItem ='RelativeSource'（HashCode = 16143157）; target元素是'ListView'（Name ='ListInvasions'）; target属性是'ItemsSource'（输入'IEnumerable'） System.Windows.Data错误：40：BindingExpression路径错误：'object'''RelativeSource'（HashCode = 16143157）'上找不到'OutbreaksList'属性。 BindingExpression：路径= OutbreaksList; DataItem ='RelativeSource'（HashCode = 16143157）; target元素是'ListView'（Name ='ListOutbreaks'）; target属性是'ItemsSource'（输入'IEnumerable'） System.Windows.Data错误：40：BindingExpression路径错误：'object'''RelativeSource'（HashCode = 16143157）'上找不到'DoneList'属性。 BindingExpression：路径= DoneList; DataItem ='RelativeSource'（HashCode = 16143157）; target元素是'ListView'（Name ='ListDone'）; target属性是'ItemsSource'（类型'IEnumerable'）
我还没有得到分解模板的部分，但我认为这不是问题。
如上所述，即使我收到错误，该程序也会显示我想要的内容。但是，我接下来添加的绑定根本不起作用，输出给出相同的错误类型（错误的路径）。我在这里做错了什么？
答案 0 :(得分：0)
您正在XAML中以及构造函数中设置DataContext。
删除XAML中的DataContext行，因为这会导致输出中的错误：
DataContext="{Binding Source={RelativeSource Self}}"
如果绑定失败，应用程序不会引发任何错误并停止应用程序，但它们会在输出中显示它们。
我发现在运行应用程序之前查看任何绑定错误的好方法是检查intellisense是否正常工作。如果是，那么你应该好好去。