<script id="scriptInit" type="text/javascript">
    require(["wijmo.wijgrid"], function () {
    $(document).ready(function () {
        $("#wijgrid").wijgrid({
             showFilter: true,
             data: [
                [0, 'Canada', 'Adams, Craig', 'RW'],
                [43, 'Canada', 'Boucher, Philippe', 'D', 'R'],
                [24, 'Canada', 'Cooke, Matt', 'LW', 'L'],
                [87, 'Canada', 'Crosby, Sidney (C)', 'C', 'L'],
                [1, 'United States', 'Curry, John', 'G', 'L'],
            ],
            columns: [
                {headerText: "Number"},
                {headerText: "Nationality"},
                {headerText: "Player"},
                {headerText: "Position"}
            ]
        });
    });
    });
    function clearFilter() {
        var cols = $("#wijgrid").wijgrid("option", "columns");
        cols[1].filterValue = null;
        cols[1].filterOperator = "noFilter";
        $("#wijgrid").wijgrid("option", "columns", cols);
    }

    function canada() {
        var cols = $("#wijgrid").wijgrid("option", "columns");
        cols[1].filterValue = "Canada";
        cols[1].filterOperator = "Equals";
        $("#wijgrid").wijgrid("option", "columns", cols);
    }

    function us() {
        var cols = $("#wijgrid").wijgrid("option", "columns");
        cols[1].filterValue = "United States";
        cols[1].filterOperator = "Equals";
        $("#wijgrid").wijgrid("option", "columns", cols);
    }

</script>