When I apply filtering and grouping to the table, the rows in the mat table disappear

When using mat-table, grouping works fine without filtering. However, once the table is filtered or if the search bar is focused, ungrouping causes the rows in the table to disappear. I am looking for a solution that allows me to group and ungroup the table even after it has been filtered. This issue also occurs when focusing on the filter search bar before grouping. I suspect the problem lies with the filter predicate that is set up for the search bar.

You can view the working example on StackBlitz here:
https://stackblitz.com/edit/xwcnz?file=src%2Fapp%2Fapp.component.ts

angulartypescriptangular-materialgroupingmat-table

Answer №1

Experimenting with StackBlitz.

After removing the filter assignment, everything seems to be functioning correctly.

this.dataSource.filter = performance.now().toString();

I'm a bit puzzled by this performance. What exactly does it refer to?

In any case, I believe both the filtering and grouping mechanisms are now performing as intended.

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