Javascript 如何顺序调用相同的控制器方法而不在客户端使用async:false？

我需要调用

“CodeListLookup”

方法，当在客户端加载页面时，该方法在控制器中两次使用不同的值。目前它的工作如预期，但不是第一次？我通过添加

async:false

解决了这个问题。但我需要一个替代方案来克服这个问题？下面我添加了Javascript代码

 RepairEstimatePriorities: new kendo.data.DataSource({
                    transport: {
                        read: {
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=PriorityType',
                            dataType: "json",
                            contentType: "application/json; charset=utf-8",
                            type: "GET"
                        }
                    }
                }),

                RepairEstimateServiceTypes: new kendo.data.DataSource({
                    transport: {
                        read: {
                            type: "GET",
                            datatype: "json",
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=ServiceType',
                            contentType: "application/json; charset=utf-8",
                        }
                    }
                }),

谢谢你的帮助

 RepairEstimatePriorities: new kendo.data.DataSource({
                    transport: {
                        read: {
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=PriorityType',
                            dataType: "json",
                            contentType: "application/json; charset=utf-8",
                            type: "GET"
                        }
                    }
                }),

                RepairEstimateServiceTypes: new kendo.data.DataSource({
                    transport: {
                        read: {
                            type: "GET",
                            datatype: "json",
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=ServiceType',
                            contentType: "application/json; charset=utf-8",
                        }
                    }
                }),

JavaScript:

 RepairEstimatePriorities: new kendo.data.DataSource({
                    transport: {
                        read: {
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=PriorityType',
                            dataType: "json",
                            contentType: "application/json; charset=utf-8",
                            type: "GET"
                        }
                    }
                }),

                RepairEstimateServiceTypes: new kendo.data.DataSource({
                    transport: {
                        read: {
                            type: "GET",
                            datatype: "json",
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=ServiceType',
                            contentType: "application/json; charset=utf-8",
                        }
                    }
                }),

下面是我收到的错误：

 RepairEstimatePriorities: new kendo.data.DataSource({
                    transport: {
                        read: {
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=PriorityType',
                            dataType: "json",
                            contentType: "application/json; charset=utf-8",
                            type: "GET"
                        }
                    }
                }),

                RepairEstimateServiceTypes: new kendo.data.DataSource({
                    transport: {
                        read: {
                            type: "GET",
                            datatype: "json",
                            url: '@Url.Action("CodeListLookup", "GeneralData", new { Area = "Settings" })/?codeListType=ServiceType',
                            contentType: "application/json; charset=utf-8",
                        }
                    }
                }),

Uncaught TypeError: e.slice is not a function