Initial commit

PcgsInvUi/ViewModels/CoinListViewModel.cs

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+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using PcgsInvUi.Models;
+using ReactiveUI;
+
+namespace PcgsInvUi.ViewModels;
+
+public class CoinListViewModel : ViewModelBase
+{
+    public ObservableCollection<Coin> CoinCollection { get; set; }
+    private float _totalValue;
+    public float TotalValue
+    {
+        get => _totalValue;
+        set => this.RaiseAndSetIfChanged(ref _totalValue, value);
+    }
+    public Coin? SelectedCoin { get; set; }
+    
+    public CoinListViewModel(IEnumerable<Coin> items)
+    {
+        CoinCollection = new ObservableCollection<Coin>(items);
+        TotalValue = 0;
+    }
+}