添加项目文件。

Commands/EventsCommand.cs

@@ -0,0 +1,29 @@
+using System.Windows.Input;
+
+namespace YwxApp.AiChat.Commands
+{
+
+    public class EventsCommand<T> : ICommand
+    {
+        private readonly Action<T> _execute;
+        private readonly Func<T, bool> _canExecute;
+        public EventsCommand(Action<T> execute, Func<T, bool> canExecute = null)
+        {
+            _execute = execute ?? throw new ArgumentNullException(nameof(execute));
+            _canExecute = canExecute;
+        }
+        public bool CanExecute(object parameter)
+        {
+            return _canExecute?.Invoke((T)parameter) ?? true;
+        }
+        public void Execute(object parameter)
+        {
+            _execute((T)parameter);
+        }
+        public event EventHandler CanExecuteChanged
+        {
+            add { CommandManager.RequerySuggested += value; }
+            remove { CommandManager.RequerySuggested -= value; }
+        }
+    }
+}