Showing DataPoint Labels with Leader Lines for Presentation Charts

[Yasmin Eldokany]

Hello, how can I create a donut chart similar to the one below with data points labels outside and leader lines?


I've been able to create the labels outside positioning for a pie chart, but leader lines don't show.

I'm using the following Syncfusion package for generating a Powerpoint presentation: https://www.nuget.org/packages/Syncfusion.Presentation.Net.Core/

[Suriya Balamurugan]

Hi Yasmin,

Thank you for contacting Syncfusion support.

how can I create a donut chart similar to the one below with data points labels outside and leader lines?
Microsoft PowerPoint application not providing support to directly set the data label outside and leader lines for doughnut chart. Syncfusion Essential PowerPoint does the same as Microsoft PowerPoint.

To meet your requirement, we suggest you to use manual layout to set the data label outside and leader lines in doughnut chart. Based on this, we have prepared the sample application from our side. It can be downloaded from the following link:
https://www.syncfusion.com/downloads/support/forum/158402/ze/Sample839319483

I've been able to create the labels outside positioning for a pie chart, but leader lines don't show.
Currently, we are checking this with high priority and will update you with more details on 9^th October 2020.

Please let us know if you have any other questions.

Regards,
Suriya Balamurugan. 

[Ramaraj Marimuthu]

Hi Yasmin,

Thank you for your patience.

Regarding leader line missing in pie chart:

A Leader Line is only helpful, when you have placed a data label away from a data point. So, it works only if we place the data label away from data point.

Please use the below code snippet to sets a leader line, 

//Get the serie data labels 

IOfficeChartDataLabels dataLabels = chart.Series[0].DataPoints.DefaultDataPoint.DataLabels; 

//Set the leader lines 

dataLabels.ShowLeaderLines = true; 

dataLabels.Position = OfficeDataLabelPosition.Outside; 

//Set Manual Layout position to long 

chart.Series[0].DataPoints[0].DataLabels.Layout.ManualLayout.Left = 0.077142857142857138; 

chart.Series[0].DataPoints[0].DataLabels.Layout.ManualLayout.Top = -0.05; 

chart.Series[0].DataPoints[1].DataLabels.Layout.ManualLayout.Left = 0.07857142857142857; 

chart.Series[0].DataPoints[1].DataLabels.Layout.ManualLayout.Top = 0.073999999999999858; 

chart.Series[0].DataPoints[2].DataLabels.Layout.ManualLayout.Left = -0.10857142857142857; 

chart.Series[0].DataPoints[2].DataLabels.Layout.ManualLayout.Top = -0.048; 

Please find the below workable sample,
https://www.syncfusion.com/downloads/support/forum/158402/ze/Sample1944384285 

Please let us know if you need any further assistances in this.

Regards,
Ramaraj Marimuthu