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DaSaSo.ViewModel/Commands/SelectClientCommand.cs

@@ -1,6 +1,7 @@
 using DaSaSo.ViewModel.Interface;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -13,10 +14,24 @@ namespace DaSaSo.ViewModel.Commands
         
         private readonly IActualProject _actualProject;
         private readonly ClientListViewModel _clientListViewModel;
+
+        public override bool CanExecute(object? parameter)
+        {
+            return _clientListViewModel.CanSelectClient;
+        }
         public SelectClientCommand(IActualProject actualProject, ClientListViewModel clientListViewModel)
         {
             _actualProject = actualProject;
             _clientListViewModel = clientListViewModel;
+            _clientListViewModel.PropertyChanged += _clientListViewModel_PropertyChanged;
+        }
+
+        private void _clientListViewModel_PropertyChanged(object? sender, PropertyChangedEventArgs e)
+        {
+            if(e.PropertyName == nameof(_clientListViewModel.CanSelectClient))
+            {
+                OnCanExecuteChanged();
+            }
         }
 
         public override async Task ExecuteAsync(object? parameter)