剑道进度条在进行 ajax 调用时未启动

我想为我的服务器端ajax调用实现剑道进度条。 我试过了，但它没有在 ajax 调用之前启动，如果我使用下面的 setTimeOut 函数关闭 ajax 调用，进度条只会显示很短的时间。 例如：

 setTimeout ( function() 
       {
        kendo.ui.progress($("#progressBar"), false); //close the progress bar       
       },5000);

在上面的代码中，进度条仅显示 5000 毫秒，之后关闭。这是我的实际要求。

我需要有两个 ajax 调用，一个在另一个内部。 我想在第一个 ajax 调用启动之前实现进度条，并希望在第二个 ajax 调用完成后关闭。 另一种选择是在第一个 ajax 调用启动之前实现进度条，并在第一个调用完成后关闭它，然后启动第二个 ajax 调用的进度条，并在第二个 ajax 调用完成时关闭。

我希望我的要求是明确的。如果您需要更多详细信息，请告诉我。 这是我的代码：

 <div id="progressBar"></div>
   <script> 
        var getResponseFromSOA = function(filterObject, file,verb, callback) {      
    createFilterString(filterObject, function(filterString) {// get the filter string
        if(jQuery) {// check the jQuery file is integrated or not
            var headers = {Authorization: COOKIES.readCookie("Authorization"),requestmode:"ACK_URL"};
            headers.isRender = file.isRender;
            if(file.inputDataHeaders)
                headers.inputData = file.inputDataHeaders;
            /*
             * Since it is async call that's why call will be 2 times.
             * 1st time we have to call to the request handler of the SOA.
             * In the response we will get one link address of response handler.
             * 2nd time we have to call that link what we got from the 1st request.
             * Response handler will give actual data in the data property of the response
             */
                    kendo.ui.progress($("#progressBar"), true); //Here progress bar will initiate
                jQuery.ajax({
                    url: file.fileUrl + "/" + $securityComponent.cryptograghicFunctions.encryptor(filterString),
                    type: verb,
                    headers: headers,
                    async: false,
                    error : function()
                    {
                        console.log("some error occured at getResponseFromSOA submitting the request");
                    },
                    success: function(responseDataFromRequestHandler) {                         
                        // again call because it is async mode form SOA team
                        jQuery.ajax({
                            url: responseDataFromRequestHandler.links[1].href,
                            async: false,
                            headers: {Authorization: COOKIES.readCookie("Authorization"),requestmode:"ACK_URL"},
                            success: function(responseDataFromResponseHandler) {
                                try {
                                    console.log(responseDataFromResponseHandler);
                                    if(callback) callback(responseDataFromResponseHandler.data);
                                }catch(e) {
                                    console.log(responseDataFromResponseHandler);
                                    // printing the error message in the console window
                                    console.log("Error in the callback in data-transactor-js > getResponseFromSOA"
                                            + "'n"
                                            + e.message);
                                }
                            },                          
                            complete: function() {
                                    kendo.ui.progress($("#progressBar"), false); //close the progress bar       
                            }
                        });
                    },
                    complete: function() {                          
                            kendo.ui.progress($("#progressBar"), false); //close the progress bar       
                    }
                });

        } else throw {message: "jQuery is not defined or jQuery file is not linked"};
    });
};
</script>

提前感谢...