Diagram Refresh

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Ed
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Ed asked on 07 Sep 2022, 08:41 PM

I have a diagram configured that reads data from an MVC Controller.  It displays and works fine.  I need to do a long poll and refresh the diagram from the database.  I have tried all kinds of things.

Called refresh on the diagram object,  called read on the datasource. 

What is the proper way to get a Diagram to read the data again and redraw itself.  

Georgi Denchev
Telerik team
commented on 12 Sep 2022, 11:41 AM

Hi, Ed,

Generally speaking, calling the dataSource's read() method is the correct way to re-fetch the data. I am not certain why this is failing in the current case.

You could also try to create new datasource instances and call the setDataSource/setConnectionsDataSource methods to force the diagram to update the underlying data.

If it is possible, could you share a small project with some sample data that I can run and examine locally? Perhaps this will give me an idea as to what is happening.

Best Regards,

Georgi

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