C# BindingExpression路径错误：未找到属性

BusyIndicator.xaml

<UserControl x:Class="Eigen.Modules.Modelling.Components.BusyIndicator"
             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" 
             xmlns:local="clr-namespace:Eigen.Modules.Modelling.Components"
             xmlns:telerikControls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"
             xmlns:gif="http://wpfanimatedgif.codeplex.com"
             mc:Ignorable="d" 
             d:DesignHeight="150" d:DesignWidth="150"
             DataContext="{Binding RelativeSource={RelativeSource Self}}">

    <Grid Width="{Binding Width}" Height="{Binding Height}">
        <telerikControls:RadBusyIndicator IsIndeterminate="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Path=IsIndeterminate}">
            <Border BorderBrush="White" Background="#A9FFFFFF" BorderThickness="1">
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>

                    <Border Padding="5,0" Grid.Row="0">
                        <Image gif:ImageBehavior.AnimatedSource="/`enter code here`Resources/matriksenerji.gif" gif:ImageBehavior.AutoStart="True"/>
                    </Border>

                    <Border Padding="5" Grid.Row="1">
                        <TextBlock Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Path=Label}" FontWeight="SemiBold" VerticalAlignment="Center" HorizontalAlignment="Center" TextAlignment="Center"/>
                    </Border>
                </Grid>
            </Border>
        </telerikControls:RadBusyIndicator>
    </Grid>
</UserControl>

在Page.xaml中使用

<UserControl x:Class="Eigen.Modules.Modelling.Components.BusyIndicator"
             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" 
             xmlns:local="clr-namespace:Eigen.Modules.Modelling.Components"
             xmlns:telerikControls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"
             xmlns:gif="http://wpfanimatedgif.codeplex.com"
             mc:Ignorable="d" 
             d:DesignHeight="150" d:DesignWidth="150"
             DataContext="{Binding RelativeSource={RelativeSource Self}}">

    <Grid Width="{Binding Width}" Height="{Binding Height}">
        <telerikControls:RadBusyIndicator IsIndeterminate="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Path=IsIndeterminate}">
            <Border BorderBrush="White" Background="#A9FFFFFF" BorderThickness="1">
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>

                    <Border Padding="5,0" Grid.Row="0">
                        <Image gif:ImageBehavior.AnimatedSource="/`enter code here`Resources/matriksenerji.gif" gif:ImageBehavior.AutoStart="True"/>
                    </Border>

                    <Border Padding="5" Grid.Row="1">
                        <TextBlock Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Path=Label}" FontWeight="SemiBold" VerticalAlignment="Center" HorizontalAlignment="Center" TextAlignment="Center"/>
                    </Border>
                </Grid>
            </Border>
        </telerikControls:RadBusyIndicator>
    </Grid>
</UserControl>

错误消息

System.Windows.Data错误：40:BindingExpression路径错误：“在对象”“BusyIndicator”“上找不到IsProgress”属性 （名称=“”）。BindingExpression:Path=DataContext.IsProgress； DataItem='BusyIndicator'（名称=''）；目标元素是“BusyIndicator” （名称=“”）；目标属性为“可见性”（类型为“可见性”）

ViewModel类具有“IsProgress”属性，但无法绑定到usercontrol。

您可以尝试跟踪：

Visibility="{Binding IsProgress, , diag:PresentationTraceSources.TraceLevel=High, Converter={StaticResource BoolToVisConverter}}" 

我建议你看看这里：

---

在用户控件定义中，您有以下行：

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

这意味着该控件的DataContext就是控件本身。因此，WPF正在尝试在此控件中查找IsProgress属性。 据我所知，IsProgress属性是在页面的ViewModel中定义的

所以最好的解决办法就是去掉上面的线

---

另外，要修复控件中的宽度和高度绑定，请向它们添加

RelativeSource={RelativeSource AncestorType={x:Type UserControl}}

。

Page.xaml的datacontext是什么？一个viewmodel类@达雅人

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