added sfloader for file uploads.

wwwroot/defaults/gassample.csv

@@ -0,0 +1,3 @@
+Date,Odometer,FuelConsumed,Cost
+5/8/2020,204836,8.331,16.24
+5/30/2020,205056,11.913,25.72

wwwroot/js/shared.js

@@ -90,9 +90,10 @@ function saveVehicle(isEdit) {
         }
     });
 }
-function uploadFileAsync() {
+function uploadFileAsync(event) {
     let formData = new FormData();
-    formData.append("file", $("#inputImage")[0].files[0]);
+    formData.append("file", event.files[0]);
+    sloader.show();
     $.ajax({
         url: "/Files/HandleFileUpload",
         data: formData,
@@ -101,6 +102,7 @@ function uploadFileAsync() {
         contentType: false,
         type: 'POST',
         success: function (response) {
+            sloader.hide();
             if (response.trim() != '') {
                 uploadedFile = response;
             }

wwwroot/js/vehicle.js

@@ -96,6 +96,17 @@ function editVehicle(vehicleId) {
 function hideEditVehicleModal() {
     $('#editVehicleModal').modal('hide');
 }
+function showBulkImportModal(mode) {
+    $.get(`/Vehicle/GetBulkImportModalPartialView?mode=${mode}`, function (data) {
+        if (data) {
+            $("#bulkImportModalContent").html(data);
+            $("#bulkImportModal").modal('show');
+        }
+    })
+}
+function hideBulkImportModal(){
+    $("#bulkImportModal").modal('hide');
+}
 function deleteVehicle(vehicleId) {
     Swal.fire({
         title: "Confirm Deletion?",