Map for search fields (local to remote). By default, if you search, it will submit column field to the searchData array to send to the server side for searching. However, sometimes column field names are not the same as search names. The .searchMap allows to map search fields differently. You can defined it during object creation: let grid = new w2grid({ name : 'grid', url : 'url/to/server', columns: [ { field: 'recid', text: 'ID', size: '50px' }, { field: 'lname', text: 'Last Name', size: '30%' }, { field: 'fname', text: 'First Name', size: '30%' }, { field: 'email', text: 'Email', size: '40%' }, { field: 'sdate', text: 'End Date', size: '120px' } ], searchMap: { lname : 'lastName', fname : 'firstName' } }); Or any time during the run-time: w2ui.grid.searchMap['email'] = 'main.email';