It worked! Thank you very much!

Hello,

Thank you for your feedback. I am glad that you resolved your issue and I believe that other community members may benefit from this as well.

Thanks again. 

I need to make line chart marker invisible when datapoint is 0.

THe data template and Loaded Event is not working for line chart. Will you modify your MLoad EventHandler to make line chart works? Thanks!

You can add the following line series to your sample project.

 <igCA:Series
          Label="Goal" x:Name="goalSeries1"
          ChartType="line"
          StrokeThickness="0"
          Fill="#FFD70005">
                    <igCA:Series.DataPoints>
                        <igCA:DataPoint Value="0.0" Label="A1" />
                        <igCA:DataPoint Value="0.5" Label="A2"/>
                        <igCA:DataPoint Value="0.8" Label="A3"/>
                        <igCA:DataPoint Value="0.7" Label="A4"/>
                        <igCA:DataPoint Value="0.9" Label="A5"/>
                    </igCA:Series.DataPoints>
                    <igCA:Series.Marker>
                        <igCA:Marker  UseDataTemplate="True" DataTemplate="{StaticResource dt}"/>
                    </igCA:Series.Marker>
                    <igCA:Series.Animation>
                        <igCA:Animation BeginTime="00:00:0.75" Duration="00:00:02"/>
                    </igCA:Series.Animation>
                </igCA:Series>

Hello Lily,

I have used your code and modified the sample I sent you before, so now it works as you want. Please let me know you need further assistance on this matter.

Looking forward for your reply.

This is great. Thanks!

Can you make the line chart not show the value of datapoint, only display the red dot?

Once again, thank you very much for your help.

-LIly

Hello Lily,

I am glad I helped you. As for the Marker’s Value you can set the Marker’s Format Property to “ “ (empty space) in order to achieve your goal. Please let me know if this helps you or you need further assistance on this matter.

Looking forward for your reply.

Thanks a lot!! it works!

Hello,

You should set it to "DontPlot" in order not to plot the null datapoints.

Thanks a lot for the hint. I am using the xamDataChart for the line series. I can see the property you mentioned for the series. Can you also tell me what is that I need to set the property to inorder to have the line series end at the point prior to it and start again at the point next to it.

Hello,

It has been a while since you have made your post, in case you still need support I will be glad to assist you further. I suppose the other community members can benefit from this answer as well. I have been looking into your post and I created a sample project for you with the functionality you want. Basically I used XamDataChart instead of XamChart, where the thing you want is built in and you can chose how the Chart will treat the null values by setting Series’ UnknownValuePlotting Property.

Feel free to write me if you have further questions.

Is there a way to plot an empty point in the line series. By empty point, I mean the line joining the points should have a break at a data point if there is no value for that.