Need to combine multiple line series to single legend item

[Ranjithkumar caliaperoumal]

I want to combine multiple line series to single legend item which has same label name.

[Lavanya Anaimuthu]

Hi Ranjithkumar caliaperoumal,  

  

Greetings from Syncfusion.  

  

Query 1: How to combine multiple line series to map under one legenditem?  

You can enable one legend item by setting VisibilityOnLegend as Visible for primary series and collapsed the VisibilityOnLegend for other series and binding the first series visibility to other IsSeriesVisible property as per in the below code snippet.  

  

Code Snippet [Xaml]:  

  

<syncfusion:SfChart.Legend>  

                <syncfusion:ChartLegend CheckBoxVisibility="Visible" ToggleSeriesVisibility="True"/>  

</syncfusion:SfChart.Legend>  

  

<syncfusion:LineSeries x:Name="series1" ItemsSource="{Binding Data}" XBindingPath="XValue" YBindingPath="YValue" Label="Series1" VisibilityOnLegend="Visible" />  

                <syncfusion:LineSeries ItemsSource="{Binding Data}" XBindingPath="XValue" YBindingPath="YValue1" Label="Series2" VisibilityOnLegend="Collapsed" IsSeriesVisible="{Binding ElementName=series1, Path=IsSeriesVisible}"/>  

                <syncfusion:LineSeries ItemsSource="{Binding Data}" XBindingPath="XValue" YBindingPath="YValue2" Label="Series3" VisibilityOnLegend="Collapsed" IsSeriesVisible="{Binding ElementName=series1, Path=IsSeriesVisible}"/>  

  

And we have prepared a sample based on your requirement and download the sample from below link.  

  

Sample: https://www.syncfusion.com/downloads/support/directtrac/263636/ze/Sample-WPF788187360.zip    

  

Screenshot:  

   

Thanks, 

Lavanya A. 

 

[Zeljko Lazic]

If the line series are being created at runtime. How would you create the bindings in the viewmodel or codebehind?

[Yuvaraj Palanisamy]

Hi Zeljko Lazic, 

 

We have created the series at run time and bind the series collection to the Series property of SfChart. Please find the code example below. 

 

CodeSnippet: 

 

<syncfusion:SfChart x:Name="chart" Series="{Binding Series}" > 

 

Also, we have attached the sample for your reference. Please find the sample from the below link. 

 

Sample: https://www.syncfusion.com/downloads/support/forum/151296/ze/DynamicSeries_update-1564988143  

Regards, 

Yuvaraj.