Question

我创建了一个wpf应用程序，我在其中使用了MahApps Metro工具作为我的视图窗口。我的应用程序运行正常，但输出窗口中显示绑定错误。我没有使用该错误中提到的任何代码。

错误是：

找不到引用'RelativeSource的绑定源 FindAncestor，AncestorType ='MahApps.Metro.Controls.Glow'， AncestorLevel = '1'”。 BindingExpression：路径= GlowColor;的DataItem = NULL; target元素是'SolidColorBrush'（HashCode = 9047482）;目标属性是'颜色'（类型'颜色'）

xaml代码：

<Controls:MetroWindow 
    x:Name="MainWin"
    x:Class="TimeSheet.DayView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:l="clr-namespace:TimeSheet.Views.DataTemplateSpace"
    xmlns:sys="clr-namespace:System;assembly=mscorlib"
    xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
    Title="DayView" Width="596" Height="596">

<Window.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colours.xaml" />
            <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
            <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
            <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
            <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
        </ResourceDictionary.MergedDictionaries>

<DataTemplate x:Key="DefaultDataTemplate">
            <StackPanel Orientation="Horizontal" Width="596">
                <TextBox Text="{Binding ClientNameBinding}" Background="Transparent" Padding="0" Margin="0" BorderThickness="0" TextWrapping="Wrap" Width="145"/>
                <TextBox Text="{Binding ApplicationNameBinding}" Background="Transparent" Padding="0" Margin="0" BorderThickness="0" TextWrapping="Wrap" Width="90"/>
                <TextBox Text="{Binding StartTimeBinding}" Background="Transparent" Padding="0" Margin="0" BorderThickness="0" TextWrapping="Wrap" Width="100"/>
                <TextBox Text="{Binding StopTimeBinding}" Background="Transparent" Padding="0" Margin="0" BorderThickness="0" TextWrapping="Wrap" Width="60"/>
                <TextBox Text="{Binding ProjectNameBinding}" Background="Transparent" Padding="0" Margin="0" BorderThickness="0" TextWrapping="Wrap" Width="130"/>
                <TextBox Text="{Binding TaskNameBinding}" Background="Transparent" Padding="0" Margin="0" BorderThickness="0" TextWrapping="Wrap" Width="71"/>
            </StackPanel>
        </DataTemplate>

<StackPanel Orientation="Horizontal" Margin="-1,93,1,434" RenderTransformOrigin="1.155,0.47" Height="25">
            <TextBox Text="Client" HorizontalContentAlignment="Center" Width="145" Foreground="White" Background="Blue" Padding="0" BorderThickness="0" VerticalContentAlignment="Center"/>
            <TextBox Text="Application" HorizontalContentAlignment="Center" Width="90" Foreground="White" Background="Blue" Padding="0" BorderThickness="0" VerticalContentAlignment="Center"/>
            <TextBox Text="StartTime" HorizontalContentAlignment="Center" Canvas.Left="148" Canvas.Top="86" Width="100" Foreground="White" Background="Blue" Padding="0" BorderThickness="0" RenderTransformOrigin="0.5,0.5" VerticalContentAlignment="Center"/>
            <TextBox Text="StopTime" HorizontalContentAlignment="Center" Width="60" RenderTransformOrigin="0.471,0.692" Foreground="White" Background="Blue" Padding="0" BorderThickness="0" VerticalContentAlignment="Center"/>
            <TextBox Text="Task" HorizontalContentAlignment="Center" Canvas.Left="378" Canvas.Top="86" Width="130" Foreground="White" Background="Blue" Padding="0" BorderThickness="0" VerticalContentAlignment="Center"/>
            <TextBox Text="Project" HorizontalContentAlignment="Center" Width="71" Foreground="White" Background="Blue" Padding="0" BorderThickness="0" VerticalContentAlignment="Center"/>
        </StackPanel>

<ListBox x:Name="listBox1" ItemsSource="{Binding}" Margin="0,131,0,59" ItemTemplateSelector="{StaticResource templateSelector}" SelectionMode="Single">
            <ListBox.ItemContainerStyle>
                <Style TargetType="{x:Type ListBoxItem}">
                    <EventSetter Event="MouseDoubleClick" Handler="listBox1_MouseDoubleClick">
                    </EventSetter>
                </Style>
            </ListBox.ItemContainerStyle>
        </ListBox>

</Controls:MetroWindow>

Answer 1

这听起来像是与您的全局样式，模板或用户控件相关的绑定错误。

我写了一些关于调试绑定错误here的内容。

总而言之，如果您在分号和逗号处添加换行符并向后读取错误，则最简单

在你的错误中做到这一点，你得到了这个：

target property is 'Color' (type 'Color')
target element is 'SolidColorBrush' (HashCode=9047482); 
DataItem=null; 
Cannot find source for binding with reference 'RelativeSource FindAncestor, 
    AncestorType='MahApps.Metro.Controls.Glow', 
    AncestorLevel='1''. 
    BindingExpression:Path=GlowColor;

它告诉你：

某处有Color属性导致绑定错误。
该属性位于SolidColorBrush对象
该项目的DataContext为null。
它在评估时遇到问题的绑定是RelativeSource绑定，它在可视树的上方寻找MahApps.Metro.Controls.Glow对象，因此它可以找到该GlowColor属性对象并使用它。

尝试搜索GlowColor的应用，然后查看是否可以找到它。它最有可能出现在Colours.xaml文件中，因为它可能包含您的SolidColorBrush个对象。

无法找到引用绑定的源'RelativeSource FindAncestor，AncestorType ='MahApps.Metro.Controls.Glow'，AncestorLevel ='1''

1 个答案: