Overwrites method for ajax requests. You can overwrite default method for every AJAX request if you define your own grid.method property. Otherwise, it will be set based on the data type defined in $('#id')w2utils.settings.dataType. This property can be set during object creation: let grid = new w2grid({ name: 'grid', method: 'POST', 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: 'Start Date', size: '120px' }, { field: 'sdate', text: 'End Date', size: '120px' } ] }); Or any time during run-time: grid.method = 'POST';