Error in vs 2013 design view

[Mark]

Using VS 2013 and v 2013.3.1204.1050

I get the attached error when in design mode using VS2013. The application compiles and the timebar works as required but the display in design mode is lost.

The xaml for the timebar.

<telerik:RadTimeBar Height="100"
                                                            VerticalAlignment="Top"
                                                            Margin="6"
                                                            IsSnapToIntervalEnabled="True"
                                                            EnableSparklineVirtualization="False"
                                                            PeriodStart="{Binding PeriodStart}"
                                                            PeriodEnd="{Binding PeriodEnd}"

                                                            SelectionStart="{Binding SelectionStart,Mode=TwoWay}"
                                                            SelectionEnd="{Binding SelectionEnd, Mode=TwoWay}">
                        <telerik:RadTimeBar.Intervals>
                            <telerik:YearInterval />
                            <telerik:MonthInterval />
                            <telerik:WeekInterval />
                            <telerik:DayInterval />
                        </telerik:RadTimeBar.Intervals>

                        <telerik:RadColumnSparkline ItemFill="#FFD6D4D4"
                                                                                ItemsSource="{Binding ColumnDataList}"
                                                                                XValuePath="DatePoint"
                                                                                YValuePath="Value"
                                                                                ColumnWidthPercent=".8" />
                    </telerik:RadTimeBar>

  

[Tsvetie]

Hi Mark,

I tested your RadTimeBar definition with Visual Studio 2013 (12.0.21005.1) and Blend (12.0.21005.1), but I was not able to reproduce the error that you report. Could you please open a new support ticket and send me a simple running project, demonstrating the problem?

Regards,
Tsvetie
Telerik