WinRT Xaml工具包列系列错误？

Question

我从Win RT Xaml Toolkit，我想显示的ColumnSeries这样的图表：

<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>'

什么可以这样做的原因？

Answer 1

OK，我发现它，

错误是的ColumnSeries失踪的标题属性，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。