How to disable checkbox of a row in kendo grid using javascript function

I have a kendo grid where columns are defined and 2 columns are checkbox type. based on some validation in the comments row data, I want to disable the checkbox of that particular row in the grid. I have a separate javascript function that I am using for validation but I am not able to disable the checkbox of that row. I am adding both the kendo grid code and the javascript function.

 createGrid: function (data) {
            $("#ProductGrid").kendoGrid({
                dataSource: {
                    data: tableData
                },
                columns: [        

                    { field: "Accept", tilte: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.Accept), "template": "<input type=\"checkbox\" />" },
                    { field: "Decline", tilte: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.Decline), "template": "<input type=\"checkbox\" />" },
                    { field: "Item", tilte: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.Item) },
                    { field: "PartID", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.PartID) },
                    { field: "Description", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.Description), width:'300px' },
                    { field: "SubPart", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.SubPart) },
                    { field: "SubPartDescription", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.SubPartDescription) },
                    { field: "BusinessPartner", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.BusinessPartner) },
                    { field: "ReqDelTM", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.ReqDelTM) },
                    { field: "EarDelTM", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.EarDelTM) },
                    { field: "EarDelDate", title: "Ear Del Date", hidden: true },
                    { field: "Comments", title: commonLib.readMessageByUserLanguage(COLUMNTITLENAME.Comments) },

                ]
            });
        },

    checkComments: function () {
var productGrid = $("#ProductGrid").data("kendoGrid");
        var productGridData = productGrid.dataSource;
        var noofproduct = productGridData.data().length;
        var dataList = productGridData.data();  

            for (var i = 0; i < noofproduct; i++)
            {

                if (dataList[i].Comments == "Date not met")
                {
                    (dataList[i].Accept.enable(false));                     

                }
            }
}