public void addAtPos(int pos) {
if (tc == null) return;
TableColumnModel tcm = table.getColumnModel();
// make sure it doesnt already exist
try {
tcm.addColumn(tc);
int idx = tcm.getColumnIndex(id);
tcm.moveColumn(idx, 0);
} catch (Exception e) {
System.out.println("addAtPos failed" + e);
}
}
