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javaswttableviewer

Is there a way to remove the sort after an SWT Table is sorted?

I have a Table and TableViewer that are set up to take a ViewerComparator:

this.viewer.setComparator( this.comparator );

Now I am looking at my table. I click on a column header. The table sorts on that row. I click on that column header again and it sorts in the other direction. I click on a different column header and the sorting switches to the new column. This works beautifully.

My question is if there is a way to remove the sorting. This would mean getting rid of the sort arrow on top of the column header that I clicked, the gray background on the sorted column's elements would disappear, and the data would go back into its original order. I am open to adding some sort of button somewhere to start this command.

Is this possible?

Solution

  • The Tables sort indicator and the comparator used by the TableViewer are actually independent.

    To remove the sort indicator, call table.setSortDirection( SWT.NONE ). To remove the comparator, call viewer.setComparator( null ).

    You could let the user switch through UP, DOWN, NONE when the column header is selected or provide an extra UI element to reset the sorting.