How to disable selection of cells in ag-grid?

Note that if we set gridOption.suppressCellSelection = true we can disable cell selection for all columns’ cells.

Here the question is regarding not showing a specific column’s cell’s highlighted border when it is selected.

You can achieve this by bit of CSS and cellClass property of ColDef.

You’ll need to add below CSS.

.ag-cell-focus,.ag-cell-no-focus{
  border:none !important;
}
/* This CSS is to not apply the border for the column having 'no-border' class */
.no-border.ag-cell:focus{
  border:none !important;
  outline: none;
}

And use the same class as cellClass in ColDef

suppressNavigable: true,
cellClass: 'no-border'

Live example: aggrid-want-to-disable-cell-selection
This won’t show border for the cell you even focus using mouse click.

Update

As per ag-grid Documentation and comment mentioned by X.Aurther, the option has been renamed to suppressCellFocus.