The search search bar will be created once. It includes all the search columns in the search bar. If you need to change the property searchdynamically, then after changing the value of the property, searchyou need to recreate the search bar. You just need to call destroyFilterToolbarto remove the search bar and then call filterToolbaragain.
Alternatively, you can simply hide the search field after setting the property searchto false. The corresponding code may be something like
$("#gs_LotNo").closest(".ui-search-table").hide();
gs_LotNo LotNo. $("#gs_LotNo").closest(".ui-search-table"), , x. ($("#gs_LotNo").val("")) , , , .