How to show split header in the material table having nested group of data in angular
问题 I am having trouble displaying data in the material table when the data is coming as a nested array of objects. I would like to display the table which is currently displayed in the stackblitz. If I changed the existing data with my newData variable it will start breaking whole table. Can anybody guide me How I can achieve split header function with group of nested data in the material table? I would like to achieve something like this. Here is my stackblitz. https://stackblitz.com/edit