WPF错误：40：BindingExpression路径错误：正确绑定[重复]答案

【问题标题】：WPF Error: 40 : BindingExpression path error: with proper binding [duplicate]WPF错误：40：BindingExpression路径错误：正确绑定[重复]
【发布时间】：2021-02-13 22:59:57
【问题描述】：

XAML/视图

<ItemsControl ItemsSource="{Binding _shapes}">
        <ItemsControl.ItemsPanel>
            <ItemsPanelTemplate>
                <Canvas Width="800" Height="600"/>
            </ItemsPanelTemplate>
        </ItemsControl.ItemsPanel>
        <ItemsControl.ItemTemplate>
            <DataTemplate>
                <Ellipse Width="{Binding width}" Height="{Binding height}" Fill="{Binding brush}">
                    <Ellipse.RenderTransform>
                        <TranslateTransform X="{Binding x}" Y="{Binding y}"/>
                    </Ellipse.RenderTransform>
                </Ellipse>
            </DataTemplate>
        </ItemsControl.ItemTemplate>
    </ItemsControl>

主视图模型

public ObservableCollection<GalaxyObjectShape> _shapes { get; set; }

银河物体形状

public class GalaxyObjectShape
    {
        public string name;
        public System.Windows.Media.Brush brush;
        public double x;
        public double y;
        public double vx;
        public double vy;
        public double height;
        public double width;
    }

谁能帮我看看为什么这不起作用？在输出中出现这些错误，我已经尝试了所有我能找到的关于这个错误的方法：

System.Windows.Data Error: 40 : BindingExpression path error: 'width' property not found on 'object' ''GalaxyObjectShape' (HashCode=407659)'. BindingExpression:Path=width; DataItem='GalaxyObjectShape' (HashCode=407659); target element is 'Ellipse' (Name=''); target property is 'Width' (type 'Double')
System.Windows.Data Error: 40 : BindingExpression path error: 'height' property not found on 'object' ''GalaxyObjectShape' (HashCode=407659)'. BindingExpression:Path=height; DataItem='GalaxyObjectShape' (HashCode=407659); target element is 'Ellipse' (Name=''); target property is 'Height' (type 'Double')
System.Windows.Data Error: 40 : BindingExpression path error: 'brush' property not found on 'object' ''GalaxyObjectShape' (HashCode=407659)'. BindingExpression:Path=brush; DataItem='GalaxyObjectShape' (HashCode=407659); target element is 'Ellipse' (Name=''); target property is 'Fill' (type 'Brush')
System.Windows.Data Error: 40 : BindingExpression path error: 'x' property not found on 'object' ''GalaxyObjectShape' (HashCode=407659)'. BindingExpression:Path=x; DataItem='GalaxyObjectShape' (HashCode=407659); target element is 'TranslateTransform' (HashCode=3668935); target property is 'X' (type 'Double')
System.Windows.Data Error: 40 : BindingExpression path error: 'y' property not found on 'object' ''GalaxyObjectShape' (HashCode=407659)'. BindingExpression:Path=y; DataItem='GalaxyObjectShape' (HashCode=407659); target element is 'TranslateTransform' (HashCode=3668935); target property is 'Y' (type 'Double')

我的其他绑定如：

Title="{Binding mainWindowTitle}"

为我的窗口工作（mainWindowTitle 是同一个 ViewModel 中的一个简单字符串）

【问题讨论】：

标签： c# wpf mvvm

【解决方案1】：

{得到; set;} 在 GalaxyObjectShape 中的属性上哎呀...

【讨论】：