Applying an On Change from inside a Data Grid to the Row that it is triggered from

I am building a Data Grid that has multiple components on it and when the component labelled 'employees' is changed, I want the entire row to be updated to reflect different data that I have mapped from data sources.

Running the following line sets the entire Data Grid to the row that I wanted set,

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      instance.root.getComponent('DataGrid').setValue(updatedRow) 

however I can't find a way to update just the row that the change is happening in.