無法將屬性'Property'中的值轉換爲'System.Windows.DependencyProperty'類型的對象

Question

我有選項卡控件一個選項卡包含DataGrid第二個ColumnSeries圖表當我按下圖表選項卡時出現此類錯誤：

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我沒有在標籤控件無論如何，這是我的DataGrid：

<TabControl Name="tabControl1"> 
    <TabItem Name="tabItem1" Header="Logs"> 
     <Grid> 
      <Grid Background="#FFABABAB"> 
       <Border Name="border1" BorderBrush="Silver" BorderThickness="1" Height="92" VerticalAlignment="Top" Background="AliceBlue" Margin="0,0,1,0"> 
        <Grid> 
         <Button Name="btnGridToExcel" Content="Export To Excel" Height="23" HorizontalAlignment="Left" Margin="639,58,0,0" VerticalAlignment="Top" Width="92" Click="btnGridToExcel_Click" /> 
         <Button Name="btnReset" Content="Reset/Refresh" Height="23" HorizontalAlignment="Left" Margin="639,24,0,0" VerticalAlignment="Top" Width="92" Click="btnReset_Click" /> 
        </Grid> 
       </Border> 
       <DataGrid Name="dataGrid1" AutoGenerateColumns="false" Margin="0,91,1,32" SelectedValuePath="ID" SelectionMode="Extended" 
          SelectionUnit="CellOrRowHeader" CanUserReorderColumns="false" CanUserAddRows="false" CanUserDeleteRows="false" 
          IsReadOnly="true" AlternatingRowBackground="#FFF2F4F4" RowBackground="#FFE0E4E3" ItemsSource="{Binding ActionCollection}" 
          SelectedCellsChanged="dataGrid1_SelectedCellsChanged" > 
        <DataGrid.ContextMenu> 
         <ContextMenu> 
          <MenuItem Name="MenuItemEdit" Header="Edit" Click="MenuItemEdit_Click"> 
           <MenuItem.Icon> 
            <Image Source="/H-Pro;component/Images/1314285611_edit.png"/> 
           </MenuItem.Icon> 
          </MenuItem> 
          <MenuItem Name="MenuItemDelete" Header="Delete" Click="MenuItemDelete_Click"> 
          <MenuItem.Icon> 
            <Image Source="/H-Pro;component/Images/1314285495_dialog-close.png"/> 
          </MenuItem.Icon> 
          </MenuItem> 
          <Separator /> 
          <MenuItem Name="MenuItemPayment" Header="Pay selected" Click="MenuItemPayment_Click"> 
           <MenuItem.Icon> 
            <Image Source="/H-Pro;component/Images/1314875051_money_dollar.png"/> 
           </MenuItem.Icon> 
          </MenuItem> 
         </ContextMenu> 
        </DataGrid.ContextMenu> 
        <DataGrid.Columns> 
         <DataGridTextColumn Header="ID" Binding="{Binding Path=ID, Mode=OneWay}" /> 
         <DataGridTextColumn Header="RoomType" Binding="{Binding Path=RoomType, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Room" Binding="{Binding Path=RoomNumber, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Guest" Binding="{Binding Path=GuestName, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Persons" Binding="{Binding Path=Person, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Check In" Binding="{Binding Path=CheckInDate, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Check Out" Binding="{Binding Path=CheckOutDate, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Room Price" Binding="{Binding Path=RoomPriceWithCurrency, Mode=OneWay}" /> 
         <DataGridCheckBoxColumn Header="Inc. First Day" Binding="{Binding Path=IncFirstDay, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Discount %" Binding="{Binding Path=Discount, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Discounted Price" Binding="{Binding Path=DiscountedPriceWithCurrency, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Rate" Binding="{Binding Path=Rate, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Total Days" Binding="{Binding Path=TotalDays, Mode=OneWay}" /> 
         <DataGridHyperlinkColumn Header="Services" Binding="{Binding Path=TotalServiceCount, Mode=OneWay}" > 
          <DataGridHyperlinkColumn.ElementStyle> 
           <Style TargetType="TextBlock"> 
            <EventSetter Event="Hyperlink.Click" Handler="DG_Hyperlink_Click" /> 
           </Style> 
          </DataGridHyperlinkColumn.ElementStyle> 
         </DataGridHyperlinkColumn> 
         <DataGridTextColumn Header="Total Price" Binding="{Binding Path=TotalPrice, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Total Price in Gel" Binding="{Binding Path=TotalPriceInGel, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Paid" Binding="{Binding Path=PaidMoney, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Debt" Binding="{Binding Path=Debt, Mode=OneWay}" /> 
         <DataGridTextColumn Header="Invoice #" Binding="{Binding Path=InvoiceNumber, Mode=OneWay}" /> 
        </DataGrid.Columns> 
        <DataGrid.GroupStyle> 
         <GroupStyle ContainerStyle="{StaticResource GroupHeaderStyle}"> 
          <GroupStyle.Panel> 
           <ItemsPanelTemplate> 
            <DataGridRowsPresenter /> 
           </ItemsPanelTemplate> 
          </GroupStyle.Panel> 
         </GroupStyle> 
        </DataGrid.GroupStyle> 
       </DataGrid> 
      </Grid> 
     </Grid> 
    </TabItem> 
</TabControl> 

和圖表：

<TabItem Header="Statistic"> 
    <ScrollViewer> 
     <Grid Background="White"> 
      <Button Name="button1" Content="Button" Height="23" HorizontalAlignment="Left" Margin="348,6,0,0" VerticalAlignment="Top" Width="75" /> 
       <charting:Chart Name="ChartGuests66" Margin="6,48,87,262" Width="862" Height="451"> 
        <charting:AreaSeries DependentValuePath="Value" IndependentValuePath="Key" Background="Red"> 
        <charting:DataPointSeries.ItemsSource> 
         <Binding BindsDirectlyToSource="True"/> 
        </charting:DataPointSeries.ItemsSource> 
       </charting:AreaSeries> 
      </charting:Chart> 
     </Grid> 
    </ScrollViewer> 
</TabItem> 

Answer 1

我認爲你的問題是在背景=「紅色」的區域內引起的。 DataPointStyle實際上有背景。

暫時刪除，如果它解決了你的問題，那麼我想你想訪問你的區域系列的DataPointStyle來設置背景。

檢查了這一點： wpf Area Chart with Different Colors?

編輯：刪除我的XAML例如，如地方的風格直接設置不工作。

Answer 2

這可能是Microsoft Toolkit本身的一個錯誤。 http://wpf.codeplex.com/workitem/12865

我有完全相同的問題，現在我要去嘗試刪除bug並重新編譯工具包。