[MatSort] sort function doesn't render sorting arrow

What is the expected behavior?

sort function in MatSort should update sorting arrow rendering state.

What is the current behavior?

Currently sort function in MatSort not updating sorting arrow rendering state.

What are the steps to reproduce?

https://stackblitz.com/edit/angular-cfcugl-17fxat If you click “sort by name” button you will see this bug. “Sort with fix” button shows the easiest way to fix this bug.

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

All

Is there anything else we should know?

[francescodist]

@jysoo The solution you proposed doesn’t work properly for me, when the arrow is supposed to be cleared. Calling the _handleClick() function, instead, solves it for me. Probably we could have a function on MatSort that basically does what “sortByNameFixed” is doing, provided an id (string) for a sortable

sortByNameFixed() {
    const sortHeader = this.sort.sortables.get('name');
    sortHeader['_handleClick']();
  }

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