Openlayers 3: Select a feature programmatically

Question

I am trying to upgrade my system from Openlayers 2 to Openlayers 3 and I have having one particular issue that I cannot seem to figure out.

My application has a grid and

Answer 1

var selectInteraction = new ol.interaction.Select(}); 
map.addInteraction(selectInteraction);

function highlightFeature(feat){
   selectInteraction.getFeatures().push(feat);
   selectInteraction.dispatchEvent({
      type: 'select',
      selected: [feat],
      deselected: []
   });
}

works like a char on latest openlayers 4.5

Answer 2

To do this you need to do the following:

mySelectControl.getFeatures().clear() -> removes the selected items

mySelectControl.getFeatures().push(featureToSelect) -> selects the applied feature

Answer 3

1. Add a select interaction to your map.

   var selectInteraction = new ol.interaction.Select();
   map.addInteraction(selectInteraction);
   

2. Add any features you want to select to the select interaction's feature array.

   selectInteractions.getFeatures().push(featureToSelect);