I'm using the jquery.datatables plugin along with the FixedColumns add-on and am experiencing some issues keeping the two tables in sync.

The first 2 rows of my table contain checkboxes.

Since the data is ajax loaded I returned "true" or "false" values in the JSON for the checkboxes and I would use `fnRowCallback` to dynamically create and replace the "true" or "false" with the appropriate checkbox.

Then I added the FixedColumns add-on and although the table initially loads correctly, subsequent redraws do not replace the "true" or "false" values with checkboxes.

Although `fnRowCallback` still fires, it only has part of the table and only part of the data 

`Note this code is in TypeScript but resembles JS closely enough to understand without knowing it`

```
 fnRowCallback: (row : DataTables.Settings, data: any[], displayIndex: number, displayIndexFull: number) : void => {

                if($(row).children("td.checkboxColumn").length > 0){

                    var isFlaggedIdentifier = 'isFlaggedCheckbox_' + displayIndexFull;
                    var isFlaggedCheckbox = $('<input />', { type: 'checkbox', id: isFlaggedIdentifier, 'class': 'tableCheckboxInput', value: isFlaggedIdentifier });
                    var isFlaggedLabel = $('<label />', { 'for': isFlaggedIdentifier, 'class': 'tableCheckboxLabel' });
                    var isFlagged: bool = $(row).children("td").eq(1).text() === "TRUE";

                    var flaggedCheckboxEntry = $(row).children("td").eq(1);
                    if(flaggedCheckboxEntry.hasClass("checkboxColumn")){
                        flaggedCheckboxEntry.html(isFlaggedCheckbox);
                        flaggedCheckboxEntry.append(isFlaggedLabel);
                    }
                }
            }

```

According to docs it seems FixedColumns doesn't have an `fnRowCallback`. It only has `fnDrawCallback` which only fires once after the table it drawn so although I havent tried it I fear it will cause the "true"/"false" to flash before being replaced by checkboxes.

If this assumption is true what can I do to replace the checkboxes before the table is rendered.