Angular + Material - How to refresh a data source (mat-table)

Question

I am using a mat-table to list the content of the users chosen languages. They can also add new languages using dialog panel. After they added a language and returned back.

Answer 1

So for me, nobody gave the good answer to the problem that i met which is almost the same than @Kay. For me it's about sorting, sorting table does not occur changes in the mat. I purpose this answer since it's the only topic that i find by searching google. I'm using Angular 6.

As said here:

Since the table optimizes for performance, it will not automatically check for changes to the data array. Instead, when objects are added, removed, or moved on the data array, you can trigger an update to the table's rendered rows by calling its renderRows() method.

So you just have to call renderRows() in your refresh() method to make your changes appears.

See here for integration.