Вот код, который я имею в XAML:Связывание в ItemsControl не прорывается к пункту от ItemsSource
<!-- ItemsControl to print all the GDTs on the map as an overlay on tiles -->
<ItemsControl ItemsSource="{Binding GDTs, Mode=OneWay}" Grid.ColumnSpan="3" Grid.RowSpan="3" Panel.ZIndex="7">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<Canvas ClipToBounds="True" SnapsToDevicePixels="true"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemContainerStyle>
<Style TargetType="ContentPresenter">
<Setter Property="Canvas.Left" Value="{Binding DistanceToLeft}"/>
<Setter Property="Canvas.Top" Value="{Binding DistanceToTop}"/>
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<Grid>
<userControls:CommIndicator CommConfig="eDt" DtAntennaMode="eDirectional" DtAzimuth="{Binding Yaw}"/>
<Image HorizontalAlignment="Center" VerticalAlignment="Center" Source="{Binding SourcePath}" Width="{Binding Width}"/>
<Rectangle Height="{Binding Height}" Width="{Binding Width}" Stroke="Orange" StrokeThickness="2"/>
<Ellipse Height="4" Width="4" Fill="Orange" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Grid>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
</ItemsControl.ItemContainerStyle>
</ItemsControl>
Все привязки там работает для того, что я только что добавил в UserControl (CommIndicator), за исключением: DtAzimuth = "{Binding Yaw}".
Ошибка, которую я вижу в Snoop по этой привязке: «Ошибка System.Windows.Data: 40: Ошибка пути BindingExpression: свойство« Yaw »не найдено на« объекте »'' CommIndicator '(Name =' ')' .BindingExpression: Path = Yaw; DataItem = 'CommIndicator' (Name = ''), целевой элемент - CommIndicator (Name = ''); target-свойство - 'DtAzimuth' (type 'Int32') "
Есть ли способ принудительного привязки для проверки в ItemsControl "currentItem"?
EDIT 1: Вот XAML для моего UserControl:
<UserControl x:Class="UserControls.CommIndicator"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:ed="http://schemas.microsoft.com/expression/2010/drawing"
xmlns:userControls="clr-namespace:UserControls"
DataContext="{Binding RelativeSource={RelativeSource Self}}"
SnapsToDevicePixels="True">
<UserControl.Resources>
<ResourceDictionary>
<userControls:CommConfigToVisibility x:Key="CommConfigToVisibility"/>
<userControls:AntennaModeToAngle x:Key="AntennaModeToAngle"/>
<userControls:AntennaModeToColor x:Key="AntennaModeToColor"/>
</ResourceDictionary>
</UserControl.Resources>
<Grid Width="100" Height="100">
<!-- Only use this for design reference -->
<!--<Grid Width="70" Height="70" HorizontalAlignment="Center" VerticalAlignment="Center">
<Ellipse Width="66" Height="66" Stroke="WhiteSmoke" StrokeThickness="3" HorizontalAlignment="Center" VerticalAlignment="Center"/>
<Ellipse Width="66" Height="66" Fill="WhiteSmoke" StrokeThickness="3" HorizontalAlignment="Center" VerticalAlignment="Center" Opacity="0.30"/>
<Ellipse Width="70" Height="70" Stroke="LimeGreen" StrokeThickness="3" HorizontalAlignment="Center" VerticalAlignment="Center"/>
<Image HorizontalAlignment="Center" VerticalAlignment="Center" Source="/Resources/BlackShadowTopView.png" Width="40"/>
<TextBlock Text="160" Margin="6" HorizontalAlignment="Center" TextAlignment="Center" Foreground="Black"/>
</Grid>-->
<!-- ADR Communication Circle Indicator -->
<Grid HorizontalAlignment="Center" VerticalAlignment="Center" Width="100" Height="100"
Visibility="{Binding CommConfig, Converter={StaticResource CommConfigToVisibility}, ConverterParameter={x:Static userControls:CommType.eDataRelay}}">
<Ellipse Width="100" Height="100" Stroke="Black" StrokeThickness="7"/>
<ed:Arc Width="99" Height="99" Fill="SlateGray" StartAngle="0" EndAngle="360" ArcThickness="5"/>
<ed:Arc Width="99" Height="99" Stretch="None" ArcThickness="6"
Fill="{Binding DrAntennaMode, Converter={StaticResource AntennaModeToColor}}"
StartAngle="{Binding DrAntennaMode, Converter={StaticResource AntennaModeToAngle}, ConverterParameter={x:Static userControls:AngleType.eStartAngle}}"
EndAngle="{Binding DrAntennaMode, Converter={StaticResource AntennaModeToAngle}, ConverterParameter={x:Static userControls:AngleType.eEndAngle}}"/>
<Grid.LayoutTransform>
<RotateTransform Angle="{Binding DrAzimuth}"/>
</Grid.LayoutTransform>
</Grid>
<!-- ADT/GDT Communication Circle Indicator -->
<Grid HorizontalAlignment="Center" VerticalAlignment="Center" Width="90" Height="90"
Visibility="{Binding CommConfig, Converter={StaticResource CommConfigToVisibility}, ConverterParameter={x:Static userControls:CommType.eDataTransmitter}}">
<Ellipse Width="88" Height="88" Stroke="Black" StrokeThickness="7"/>
<ed:Arc Width="87" Height="87" Fill="SlateGray" StartAngle="0" EndAngle="360" ArcThickness="5"/>
<ed:Arc Width="87" Height="87" Stretch="None" ArcThickness="6"
Fill="{Binding DtAntennaMode, Converter={StaticResource AntennaModeToColor}}"
StartAngle="{Binding DtAntennaMode, Converter={StaticResource AntennaModeToAngle}, ConverterParameter={x:Static userControls:AngleType.eStartAngle}}"
EndAngle="{Binding DtAntennaMode, Converter={StaticResource AntennaModeToAngle}, ConverterParameter={x:Static userControls:AngleType.eEndAngle}}"/>
<Grid.LayoutTransform>
<RotateTransform Angle="{Binding DtAzimuth}"/>
</Grid.LayoutTransform>
</Grid>
</Grid>
</UserControl>
Насколько возможно, вы устанавливаете 'DataContext'' CommIndicator' для себя? –
@HighCore Да в моем UserControl Я устанавливаю DataContext для себя. Как я могу сделать иначе, если я хочу привязать некоторые свойства к своим свойствам DependencyProperties? Каков самый чистый способ сделать это? – KOTIX
НИКОГДА, НИКОГДА, НИКОГДА, НИКОГДА не устанавливайте DataContext элемента элемента UI для себя. Опубликуйте XAML для UserControl. –