windows-runtime - WinRT Xaml 工具包列系列错误？

Question

我有一张来自 Win RT Xaml Toolkit 的图表我想像这样显示一个 ColumnSeries:

<charting:Chart Name="columnChart" Grid.Row="1" Grid.Column="1" Width="400" Height="400">
    <charting:Chart.Series>
        <charting:ColumnSeries  
             ItemsSource="{Binding items}"
             IndependentValueBinding="{Binding Name}"
             DependentValueBinding="{Binding Value}" 
             IsSelectionEnabled="True">
        </charting:ColumnSeries>  
    </charting:Chart.Series>
</charting:Chart>

但我总是收到此错误:

WinRT information: Cannot add instance of type 'WinRTXamlToolkit.Controls.DataVisualization.Charting.ColumnSeries' to a collection of type 'System.Collections.ObjectModel.Collection<WinRTXamlToolkit.Controls.DataVisualization.Charting.ISeries>'

这可能是什么原因？

Answer 1

好的，我找到了，

错误是 ColumnSeries 丢失了 标题属性，像这样:

<charting:Chart Name="columnChart" Grid.Row="1" Grid.Column="1" Width="400" Height="400">
    <charting:Chart.Series>
        <charting:ColumnSeries  
             Title="Chart Title"
             ItemsSource="{Binding items}"
             IndependentValueBinding="{Binding Name}"
             DependentValueBinding="{Binding Value}" 
             IsSelectionEnabled="True">
        </charting:ColumnSeries>  
    </charting:Chart.Series>
</charting:Chart>

看来 标题属性是强制性的。