$("#grid1").igGrid({
                virtualization: false,
                autoGenerateColumns: false,
                autofitColumns :true,
                primaryKey: "LicenseKey",
                caption: licenseCaption,
                renderCheckboxes: true,
                // note: if primaryKey is set and data in primary column contains numbers,
                // then the dataType: "number" is required, otherwise, dataSource may misbehave
                columns: [{ headerText: licenseKeyHeader, key: "LicenseKey", width: "320px" },
                    { headerText: assetNameHeader, key: "AssetName", width: "120px" },
                    { headerText: macIdHeader, key: "MacId", width: "140px" },
                    { headerText: logicTypeIdHeader, key: "LogicTypeId", width: "110px", formatter: lookupLogicTypeName },
                    { headerText: subOrgIdHeader, key: "SubOrgId", width: "100px", formatter: lookupSubOrgName },
                    { headerText: driverIdHeader, key: "DriverId", width: "110px", dataType: "bool" },
                    { headerText: communicatorHeader, key: "Communicator", width: "110px", dataType: "bool" },
                    { headerText: premiumMappingHeader, key: "PremiumMapping", width: "110px", dataType: "bool" },
                    { headerText: daysLeftHeader, key: "DaysLeft", width: "95px" }
                ],
                dataSource: deviceLicenses,  
                aggregateTransactions: true,           
                height: "600px",
                width: "100%",
                tabIndex: 1,
                features: [{
                    name: "Sorting",
                    type: "local"
                },
                {
                    name: "RowSelectors",
                    enableCheckBoxes: true,
                    enableRowNumbering: true
                },
                {
                    name: "Selection",
                    mode: "row",
                    multipleSelection: true
                },
                {
                    name: "Updating",
                    enableAddRow: false,
                    editMode: "row",
                    enableDeleteRow: false,
                    editCellStarting: function (evt, ui) {                       
                        //Disabling Columns based on the value of DaysLeft column                          
                        var daysLeft = ui.owner.grid.getCellValue(ui.rowID, "DaysLeft");                       
                        if (daysLeft != null) {
                            if (ui.columnKey == "MacId") {                                
                                return false;
                            }                           
                            else if (ui.columnKey == "DriverId" || ui.columnKey == "Communicator" || ui.columnKey == "PremiumMapping") {
                                //If DaysLeft is not blank feature can be added but cannot be removed
                                var currRow = ui.owner.grid.findRecordByKey(ui.rowID);
                                if (ui.columnKey == "DriverId")
                                    if (currRow.DriverId == true) return false;
                                if (ui.columnKey == "Communicator")
                                    if (currRow.Communicator == true) return false;
                                if (ui.columnKey == "PremiumMapping")
                                    if (currRow.PremiumMapping == true) return false;
                            }
                           
                        }
                    },
                    rowAdded: function (evt, ui) {
                        $("#undo").igButton("option", "disabled", false);
                        $("#saveChanges").igButton("option", "disabled", false);
                    },
                    rowDeleted: function (evt, ui) {
                        $("#undo").igButton("option", "disabled", false);
                        $("#saveChanges").igButton("option", "disabled", false);
                    },
                    editRowEnded: function (evt, ui) {
                        if (ui.update) {
                            $("#undo").igButton("option", "disabled", false);
                            $("#saveChanges").igButton("option", "disabled", false);
                        }
                    },
                    columnSettings: [{
                        columnKey: "LicenseKey",
                        readOnly: true
                    }, {
                        columnKey: "AssetName",
                        required: true,
                        editorOptions: {
                            maxLength: 64
                        }
                    }, {
                        columnKey: "MacId",
                        required: true,
                        editorOptions: {
                            type: "mask",
                            inputMask: "AA\:AA\:AA\:AA\:AA\:AA"
                        }
                    }, {
                        columnKey: "LogicTypeId",
                        required: true,
                        editorType: "combo",
                        editorOptions: {
                            dataSource: logicTypes,
                            textKey: "Name",
                            valueKey: "Id"
                        }

                    }, {
                        columnKey: "SubOrgId",
                        required: true,
                        editorType: "combo",
                        editorOptions: {
                            dataSource: subOrgs,
                            textKey: "Name",
                            valueKey: "Id"
                        }
                    },
                    { columnKey: "DriverId" },
                    { columnKey: "Communicator" },
                    { columnKey: "PremiumMapping" },
                    { columnKey: "DaysLeft", readOnly: true }
                    ]
                }]
            })