Added the NewControl as a content replacement for the MainWindow.

PcgsInvUi/ViewModels/NewViewModel.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Reactive;
+using System.Collections.Generic;
 using PcgsInvUi.Models;
 using ReactiveUI;
 
@@ -26,17 +27,62 @@ public class NewViewModel : ViewModelBase
         get => _quantity;
         set => this.RaiseAndSetIfChanged(ref _quantity, value);
     }
-    
+    public List<string> GradesList { get; }
+
     public NewViewModel()
     {
         var okEnabled = this.WhenAnyValue(
             x => x.PcgsNumber,
-            x => !string.IsNullOrWhiteSpace(x));
+            x => x.Grade,
+            x => x.Quantity,
+            (id, grade, quantity) => !string.IsNullOrWhiteSpace(id) &&
+                                     !string.IsNullOrWhiteSpace(grade) &&
+                                     !string.IsNullOrWhiteSpace(quantity));
 
+        // This will eventually send our request to the public API, then construct our coin.
         OkCommand = ReactiveCommand.Create(
-            () => new Coin { PcgsNumber = Int32.Parse(PcgsNumber) },
+            () => new Coin { PcgsNumber = Int32.Parse(PcgsNumber),
+                Grade = Grade,
+                Quantity = Int32.Parse(Quantity) },
             okEnabled);
+        
         CancelCommand = ReactiveCommand.Create(() => { });
+
+        // Initialize grade values for use in the view.
+        // This must be typed out manually, as there is no way to get a list of grades from the API.
+        GradesList = new List<string>()
+        {
+            "P-01",
+            "FR-02",
+            "AG-03",
+            "G-04",
+            "G-06",
+            "VG-08",
+            "VG-10",
+            "F-12",
+            "F-15",
+            "VF-20",
+            "VF-25",
+            "VF-30",
+            "VF-35",
+            "EF-40",
+            "EF-45",
+            "AU-50",
+            "AU-53",
+            "AU-55",
+            "AU-58",
+            "MS-60",
+            "MS-61",
+            "MS-62",
+            "MS-63",
+            "MS-64",
+            "MS-65",
+            "MS-66",
+            "MS-67",
+            "MS-68",
+            "MS-69",
+            "MS-70"
+        };
     }
 
     public ReactiveCommand<Unit, Coin> OkCommand { get; }