added asp-controller to editserver.cshtml + using id in edtiserver as hidden

Watcher/Views/Server/EditServer.cshtml

@@ -1,4 +1,4 @@
-@model Watcher.ViewModels.EditServerViewModel;
+@model Watcher.ViewModels.EditServerViewModel
 
 @{
     ViewData["Title"] = "Server bearbeiten";
@@ -6,26 +6,28 @@
 
 <h2>Server bearbeiten</h2>
 
-<form asp-action="EditServer" method="post">
+<form asp-action="EditServer" asp-controller="Server" method="post">
     @Html.AntiForgeryToken()
+    <input type="hidden" asp-for="Id" />
 
     <div class="mb-3">
         <label asp-for="Name"></label>
         <input asp-for="Name" class="form-control" />
+        <span asp-validation-for="Name" class="text-danger"></span>
     </div>
 
     <div class="mb-3">
         <label asp-for="IPAddress"></label>
         <input asp-for="IPAddress" class="form-control" />
-    </div>
-    
+        <span asp-validation-for="IPAddress" class="text-danger"></span>
     </div>
 
     <div class="mb-3">
         <label asp-for="Type"></label>
         <input asp-for="Type" class="form-control" />
+        <span asp-validation-for="Type" class="text-danger"></span>
     </div>
 
     <button type="submit" class="btn btn-primary mt-3">Speichern</button>
     <a asp-action="Overview" class="btn btn-secondary mt-3">Abbrechen</a>
-</form>
+</form>