fixed crash on car renting

RentACar/WebApp/Controllers/RentsController.cs

@@ -44,7 +44,7 @@ namespace WebApp.Controllers
         }
 
         // GET: Rents/Create
-        public IActionResult Create()
+        public IActionResult Create(int id)
         {
             return View();
         }
@@ -58,6 +58,8 @@ namespace WebApp.Controllers
         {
             if (ModelState.IsValid)
             {
+                var car = _context.Cars.FirstOrDefault(car => car.Id == 1);
+                rents.Car = car;
                 _context.Add(rents);
                 await _context.SaveChangesAsync();
                 return RedirectToAction(nameof(Index));

RentACar/WebApp/Views/Cars/Index.cshtml

@@ -32,7 +32,9 @@
             <th>
                 @Html.DisplayNameFor(model => model.PriceForDay)
             </th>
-            <th></th>
+            <th>
+                Select
+            </th>
         </tr>
     </thead>
     <tbody>
@@ -57,6 +59,9 @@
             <td>
                 @Html.DisplayFor(modelItem => item.PriceForDay)
             </td>
+            <td>
+                <a asp-controller="Rents" asp-action="Create">Select</a>
+            </td>
             @if (this.User.IsInRole("Admin"))
             {
                 <td>

RentACar/WebApp/appsettings.json

@@ -1,6 +1,6 @@
 {
     "ConnectionStrings": {
-        "DefaultConnection": "Server=.\\SQLEXPRESS;Database=RentACar;Integrated Security=true;"
+        "DefaultConnection": "Server=.;Database=RentACar;Integrated Security=true;"
     },
     "Logging": {
         "LogLevel": {

RentACar/WebApp/bin/Debug/net5.0/appsettings.json

@@ -1,6 +1,6 @@
 {
     "ConnectionStrings": {
-        "DefaultConnection": "Server=.\\SQLEXPRESS;Database=RentACar;Integrated Security=true;"
+        "DefaultConnection": "Server=.;Database=RentACar;Integrated Security=true;"
     },
     "Logging": {
         "LogLevel": {