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YouTubeViewers.WPF/ViewModels/YouTubeViewerDetailsFormViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace YouTubeViewers.WPF.ViewModels;
+
+public class YouTubeViewerDetailsFormViewModel : ViewModelBase
+{
+    private string _userName;
+
+    public string UserName
+    {
+        get { return _userName; }
+        set
+        {
+            _userName = value;
+            OnPropertyChanged(nameof(UserName));
+            OnPropertyChanged(nameof(CanSubmit));
+        }
+    }
+
+    private bool _isSubScribed;
+
+    public bool IsSubScribed
+    {
+        get { return _isSubScribed; }
+        set
+        {
+            _isSubScribed = value;
+            OnPropertyChanged(nameof(IsSubScribed));
+        }
+    }
+
+    private bool _isMember;
+
+
+    public bool IsMember
+    {
+        get { return _isMember; }
+        set
+        {
+            _isMember = value;
+            OnPropertyChanged(nameof(IsMember));
+        }
+    }
+
+
+    #region IsSubmitting
+
+    private bool _IsSubmitting;
+    public bool IsSubmitting
+    {
+        get { return _IsSubmitting; }
+        set { _IsSubmitting = value; OnPropertyChanged(nameof(IsSubmitting)); }
+    }
+
+    #endregion IsSubmitting
+
+    public bool CanSubmit => !string.IsNullOrEmpty(UserName);
+    public ICommand SubmitCommand { get; }
+    public ICommand CancelCommand { get; }
+    public YouTubeViewerDetailsFormViewModel(ICommand submitCommand, ICommand cancelCommand)
+    {
+        SubmitCommand = submitCommand;
+        CancelCommand = cancelCommand;
+    }
+
+}