Swap Alternate and Background Colors on Every Second Child Grid

Environment

Product	Progress® Kendo UI® Grid for jQuery
Product Version	Tested up to version 2017.2 504

Description

I have a multi-level, hierarchy Grid. The headers of the child grids are hidden. When I expand a row, all grids display the same color in a sequence. Can I swap the background color on every second child grid?

Solution

1. In the dataBound event of the master Grid, get the background and the alternate color of the widget and save them in global variables.

2. In the dataBound event handler of every child grid, conditionally swap the background and the alternate colors.

<div id="grid"></div>

<script>
    var bgColor = "";
    var altColor = "";

    $(document).ready(function() {
        var element = $("#grid").kendoGrid({
            dataSource: {
                type: "odata",
                transport: {
                    read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Employees"
                },
                pageSize: 6,
                serverPaging: true,
                serverSorting: true
            },
            height: 600,
            sortable: true,
            pageable: true,
            detailInit: detailInit,
            dataBound: mainGridDataBound,
            columns: [{
                    field: "FirstName",
                    title: "First Name",
                    width: "110px"
                },
                {
                    field: "LastName",
                    title: "Last Name",
                    width: "110px"
                },
                {
                    field: "Country",
                    width: "110px"
                },
                {
                    field: "City",
                    width: "110px"
                },
                {
                    field: "Title"
                }
            ]
        });
    });

    function detailInit(e) {
        $("<div id='grid_" + e.data.EmployeeID + "'/>").appendTo(e.detailCell).kendoGrid({
            dataSource: {
                type: "odata",
                transport: {
                    read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Orders"
                },
                serverPaging: true,
                serverSorting: true,
                serverFiltering: true,
                pageSize: 10,
                filter: {
                    field: "EmployeeID",
                    operator: "eq",
                    value: e.data.EmployeeID
                }
            },
            scrollable: false,
            sortable: true,
            pageable: true,
            dataBound: childGridDataBound,
            columns: [{
                    field: "OrderID",
                    width: "110px"
                },
                {
                    field: "ShipCountry",
                    title: "Ship Country",
                    width: "110px"
                },
                {
                    field: "ShipAddress",
                    title: "Ship Address"
                },
                {
                    field: "ShipName",
                    title: "Ship Name",
                    width: "300px"
                }
            ]
        });
    };

    function mainGridDataBound(e) {
        bgColor = $("#grid").css("background-color");
        altColor = $(".k-alt").css("background-color");

        this.expandRow(this.tbody.find("tr.k-master-row").first());
    };

    function childGridDataBound(e) {
        var gridID = e.sender.element[0].id;
        var id = gridID.slice(-1);

        if (id % 2 === 0) {
            $("#" + gridID).find(".k-alt").css("background-color", bgColor);
            $("#" + gridID).css("background-color", altColor);
        };
    };
</script>