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Invalid property or field - 'TimeStamp' for type: Double

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Chart

This is a migrated thread and some comments may be shown as answers.

Ryan Overton asked on 21 Apr 2010, 09:22 PM

I am using RadControls for WPF build 2010.1.416.35. I have a radchart and define the SeriesMappings in XAML and when it tries to render the XAML below in VS2008 or Blend 3 I get the error "Invalid property or field - 'TimeStamp' for type: Double" in design view.

    
            <telerik:RadChart x:Name="hydroChart" Margin="8,34,0,0" ItemsSource="{Binding DataPoints, Mode=TwoWay}" HorizontalAlignment="Left" VerticalAlignment="Top" 
        
                                      telerik:Theming.Theme="Summer">  
        
                        <telerik:PointMark Size="1">  
        
                        </telerik:PointMark> 
        
                        <telerik:RadChart.SamplingSettings> 
        
                            <telerik:SamplingSettings SamplingFunction="KeepExtremes" SamplingThreshold="50"/>  
        
                        </telerik:RadChart.SamplingSettings> 
        
                        <telerik:RadChart.AnimationSettings> 
        
                            <telerikChart:AnimationSettings ItemAnimationDuration="00:00:00" ItemDelay="00:00:00" DefaultSeriesDelay="00:00:00"/>  
        
                        </telerik:RadChart.AnimationSettings> 
        
                        <telerik:RadChart.DefaultView> 
        
                            <telerik:ChartDefaultView>                    
        
                                <telerik:ChartDefaultView.ChartArea> 
        
                                    <telerik:ChartArea NoDataString="No Data....." LegendName="chartLegend">  
        
                                        <telerikChart:ChartArea.AdditionalYAxes> 
        
                                            <telerikChart:AxisY AutoRange="False" AxisName="TEMPER" DefaultLabelFormat="#VAL F" MaxValue="110" MinValue="50" Step="20" Title="Temperature in F"/>  
        
                                        </telerikChart:ChartArea.AdditionalYAxes> 
        
                                        <telerikChart:ChartArea.AxisY> 
        
                                            <telerikChart:AxisY AutoRange="False" MinValue="0" MaxValue="25000" Step="1000" Title="PSI" AxisName="PSI"/>  
        
                                        </telerikChart:ChartArea.AxisY> 
        
                                        <telerik:ChartArea.AxisX> 
        
                                            <telerik:AxisX LabelRotationAngle="90" LabelStep="2" Title="Time" IsDateTime="True" DefaultLabelFormat="#VAL{hh:mm:ss}"/>  
        
                                        </telerik:ChartArea.AxisX>                              
        
                                    </telerik:ChartArea>                                
        
                                </telerik:ChartDefaultView.ChartArea>                      
        
                                <telerik:ChartDefaultView.ChartLegend> 
        
                                    <telerik:ChartLegend x:Name="chartLegend" Header="In-Process Hydro" UseAutoGeneratedItems="True" ></telerik:ChartLegend> 
        
                                </telerik:ChartDefaultView.ChartLegend> 
        
                            </telerik:ChartDefaultView> 
        
                        </telerik:RadChart.DefaultView> 
        
                        <telerik:RadChart.SeriesMappings> 
        
                            <telerik:SeriesMappingCollection> 
        
                                <telerik:SeriesMapping LegendLabel="Inlet PSI">   
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="PSI" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}">  
        
                                        </telerik:LineSeriesDefinition> 
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="InletPressure"  /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                                <telerik:SeriesMapping LegendLabel="Outlet PSI">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="PSI" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="OutletPressure" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping>      
        
                                <telerik:SeriesMapping LegendLabel="Ambient Temp">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="TEMPER" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="NewAmbientTemp" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                                <telerik:SeriesMapping LegendLabel="Fluid Temp In">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="TEMPER" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="NewFluidTempIn" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                                <telerik:SeriesMapping LegendLabel="Fluid Temp Out">  
        
                                    <telerik:SeriesMapping.SeriesDefinition> 
        
                                        <telerik:LineSeriesDefinition AxisName="TEMPER" ShowItemLabels="False" ShowItemToolTips="True" 
        
                                                                      PointMarkItemStyle="{StaticResource PointMarkStyle}"/>  
        
                                    </telerik:SeriesMapping.SeriesDefinition> 
        
                                    <telerik:SeriesMapping.ItemMappings> 
        
                                        <telerik:ItemMapping DataPointMember="XValue" FieldName="TimeStamp" FieldType="sys:DateTime"/>  
        
                                        <telerik:ItemMapping DataPointMember="YValue" FieldName="NewFluidTempOut" /> 
        
                                    </telerik:SeriesMapping.ItemMappings> 
        
                                </telerik:SeriesMapping> 
        
                            </telerik:SeriesMappingCollection> 
        
                        </telerik:RadChart.SeriesMappings> 
        
                        <telerik:RadChart.DefaultSeriesDefinition> 
        
                            <telerik:LineSeriesDefinition LegendDisplayMode="SeriesLabel" ShowItemLabels="False" ShowItemToolTips="True"/>  
        
                        </telerik:RadChart.DefaultSeriesDefinition> 
        
                    </telerik:RadChart>

But when I only have 1 SeriesMapping everything works as expected. Is this a known bug, or am I missing something?

Everything compiles fine, and when I run the program it renders properly. Any help is appreciated.

Thanks,
Ryan

11 Answers, 1 is accepted

answered on 27 May 2010, 04:56 PM

Hello Neil,

I just took Ryan's markup, put it in a user control, added an empty Style object to container's resources for PointMarkStyle and it worked correctly for me - SL4, VS2010, with both latest official assemblies - 2010 Q1 SP1 - 2010.1.422.1040 and latest internal build - 2010.1.521.1040. Can you please, provide more details or an example, which reproduces it? Thanks.

Best regards,
Ves
the Telerik team

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answered on 08 Jun 2010, 04:44 AM

This fails in both VS2010 and in Expression Blend 4.0 RTM with error "Invalid property or field - 'Time' for type: Double" (Silverlight 4.0)

answered on 10 Jun 2010, 03:13 PM

302697.zip

Hi Neil,

Please, find the attached example containing similar(in fact lightweight) version of your code.
When you are using the Chart axes with AutoRange = false you must provide a custom axis range using the MinValue, MaxValue and Step properties.

Hope this helps.

All the best,
Velin
the Telerik team

answered on 10 Jun 2010, 04:08 PM

I do when the page is initialized, but the chart should never cause an exception at design time!:

if (!chartInitialized)

{

int tvirt = virtualmemorylimit / 1024 + 199;

SetUpRadChart (

Math.Floor ((double)(tvirt - tvirt % 100)));

chartInitialized =

true;

}

SetUpAxisXRange (timestamp.ToLocalTime (), memorySpan);

chartMemory.ItemsSource =

null;

chartMemory.ItemsSource = cpuData;

}

private const int queueCapacity = 12 * 60 * 25;

private Queue<SystemLoadInfo> cpuData = new Queue<SystemLoadInfo> (queueCapacity);

private void SetUpRadChart (double maxY)

{

SetUpPrimaryYAxis (maxY);

}

private void SetUpPrimaryYAxis (double maxY)

{

chartMemory.DefaultView.ChartArea.AxisY.MaxValue = maxY;

chartMemory.DefaultView.ChartArea.AxisY.Step = maxY > 1600 ? 200 : maxY > 800 ? 100 : 50;

}

private void SetUpAxisXRange (DateTime now, MemorySpan span)

{

now =

new DateTime (now.Year, now.Month, now.Day, now.Hour, now.Minute, now.Second - now.Second % 10);

chartMemory.DefaultView.ChartArea.AxisX.MaxValue = now.ToOADate ();

ChangeAxisXRange (span);

}

public void ChangeAxisXRange (MemorySpan span)

{

int secondsinspan = span.Minutes * 60;

DateTime now = DateTime.FromOADate (chartMemory.DefaultView.ChartArea.AxisX.MaxValue);

chartMemory.DefaultView.ChartArea.AxisX.MinValue = now.AddSeconds (-secondsinspan).ToOADate ();

chartMemory.DefaultView.ChartArea.AxisX.Step = span.Step / 24.0 / 3600.0;

chartMemory.DefaultView.ChartArea.AxisX.LabelStep = span.LabelStep;

}

answered on 18 Jun 2010, 04:13 PM

Hello Neil,

This issue does not reproduce on our end. I copied the xaml code as is in a newly created Silverlight 4 application using Q1.SP2 version of the controls and the VisualStudio 2010 designer loaded just fine and without the error you reported.

Could you please send us a complete sample application which to investigate further.

All the best,
Velin
the Telerik team

answered on 01 Sep 2010, 10:50 PM

Hi there,

I seem to be suffering from the same problem. I had a look through you PITS and found issue ID 1940, but it had been marked as deleted. (Not sure why?) The comment noted that "the markup is available in ticket #302697". I'm not too sure what that means but I know I'm having the same issue in WPF as was originally described by Ryan.

As a work-around, I comment out my extra <telerik:SeriesMapping>'s while working in design mode and then uncomment them before building. Not the best though.

I am using version 2010.2.812.40.

Cheers,

Nick Barrett

answered on 07 Sep 2010, 12:09 PM

Hello Nick,

The pits issue has been removed as we have not been able to reproduce the issue since 2010 Q1 SP1 and unfortunately we have not received enough information to reproduce it ever since. Please, open a support ticket and provide the necessary information in order to be able to reproduce the issue on our end and fix it. Thanks.

Best wishes,
Ryan
the Telerik team