With grouped and/or multi-line headers, to place the filters row at desired location, it is important to pay attention to the following configuration properties:
filters_row_index
to set the position of the filters'
row
headers_row_index
to specify the position of the
headers row - especially when the sort feature is enabled
and equally inportant, specify the index of the row from which the filtering
process should start ie:
var tf = new TableFilter('myTableId', myConfig, 3);