ChangeDetectionStrategy.onPush not allowing rowClass to update

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[ ] feature request
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Current behavior

In my use-case for this component, I’m using the datatable as a list, in which clicks on rows open a side-panel. Once a row is clicked, its colour changes as long as the side-panel is open. This is achieved by altering a boolean field in the object associated with the row, namely “$$activated”, and using the rowClass input to assign a CSS class to the entire row.

Moreover, while the side-panel is open, the user can change the activated row by using the arrow keys, and this will in turn change the $$activated field on the previous/next item allowing to navigate the table. Finally, once the side-panel is closed, the row will lose its activated style.

This used to work perfectly until, relatively recently, the onPush change detection strategy has been added: what happens now is that, when the panel is open and I navigate the table, the datatable component won’t realise that data has changed and therefore the glowing row won’t change. Also, once I close the side-panel, the row will remain activated up until I hover the table with my mouse, which triggers a recalculation of the row styles (including mine defined through rowClass).

Expected behavior I would expect the datatable to detect my changes. This might be achieved by making the ChangeDetectionStrategy configurable.

Please tell us about your environment: Mac OS X

• Table version: 11.2.0

• Angular version: 5.2.8

• Browser: Google Chrome 65.0.3325.162

[evxn]

Figured out the solution for #1334:

import {ColumnChangesService} from '@swimlane/ngx-datatable';

constructor(private columnChangesService: ColumnChangesService) { }

triggerColumnChangeDetection(): void {
    this.columnChangesService.onInputChange();
}

[jayaprakashinstrive]

@evxn thank you so much…it working