ElementName绑定失败 [英] ElementName Binding is failing

问题描述

我有以下XAML：

<Grid>
    <Grid.RowDefinitions>
        ...
    </Grid.RowDefinitions>
    <DataGrid Grid.Row="0" ...>
        <DataGrid.Columns>
            ...
        </DataGrid.Columns>
    </DataGrid>

    <DockPanel Grid.Row="2">
        <CheckBox x:Name="DisplayMarkers" DockPanel.Dock="Top" Content="Display Data Points?"
                Margin="8,5,0,5" d:LayoutOverrides="Height" HorizontalAlignment="Left" IsChecked="False" />
        <vf:Chart DockPanel.Dock="Top" ScrollingEnabled="False" ZoomingEnabled="True" ToolBarEnabled="True">
            <vf:DataSeries AxisYType="Secondary" RenderAs="Line" DataSource="{Binding CdTeRoughnessList}"
                    XValueType="DateTime"
                    MarkerEnabled="{Binding ElementName=DisplayMarkers, Path=IsChecked}" Color="Navy"
                    LegendText="Roughness Std. Dev.">

此绑定失败： MarkerEnabled ={Binding ElementName = DisplayMarkers，Path = IsChecked}

我试图绑定到名为DisplayMarkers的复选框上的IsChecked属性，当我运行这个调试模式在VS 2010中，输出窗口显示绑定失败，找不到名为复选框的元素，有没有人可以告诉我为什么？

I'm trying to bind to the IsChecked property on my Checkbox named 'DisplayMarkers". When I run this, in debug mode in VS 2010, the output window shows the binding is failing. It can't find the element named 'Checkbox'. Could anyone tell me why?

错误我从VS得到的是：

The error I'm getting from VS is:

System.Windows.Data Error: 4 : Cannot find source for binding with reference 

    'ElementName=DisplayMarkers'. BindingExpression:Path=IsChecked; DataItem=null; target element is 'DataSeries' (Name=''); target property is 'MarkerEnabled' (type 'Nullable`1')

推荐答案

你可能没有一个可以尝试绑定的命名空间，您可以尝试使用 Source = {x：Reference来替换 ElementName

You might not have a namescope where you try to bind, you could try to replace the ElementName construct with Source={x:Reference DisplayMarkers}.

有关潜在的循环依赖性错误的解决方法，请参阅： http://stackoverflow.com/a/6858917/546730

For a workaround for potential cyclical dependency errors see: http://stackoverflow.com/a/6858917/546730

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