How to convert a chart to image png in server side to export as FileStream

[Roberto]

Hello,

I need to generate a pie chart on the server side and transform it into a png image without rendering an HTML page. Can you help? It's possible?

[Swetha Babu]

Hi Roberto,

Greetings from Syncfusion.

In chart, we don’t have option to render and export chart in server. You can render and export the chart on server side by creating a Excel chart using the XlsIO library and export that chart in the server side. Please find the below documentation link for your reference.

Creation of chart - Working with charts | Syncfusion XlsIO 

Conversion of Chart to image -  Chart to Image conversion | Syncfusion XlsIO

Kindly, revert us if you have any concerns.

Regards,

Swetha

[Roberto]

Okay, thanks for the answer.

And using html rendering via server side? I cannot load any browser emulators as the hosting service considers it a suspicious operation.

Thanks

[Mugil Murugan]

Hi Roberto,

We can render and export the chart on a client side by default. The export method in chart will export the chart element in the UI. So, we do not have support to render and export the chart from server side.  
 

Please find the attached file for the client-side chart rendering. The documentation link for Export is mentioned below.

Please refer to the UG for more about Export.

Regards,
Mugil M.
 

Attachment: ChartExport_313ed74b.zip

[Roberto]

Hello,

I understand, but that doesn't help because I will send the chart to a bot on Telegram when the user requests it.

I'll look for other options.

Thank you for the explanation.

[Mugil Murugan]

Hi Roberto,

For the server side, as mentioned in the previous update, you can create a chart and export it to an image.

Regards,

Mugil M.