Binding Commands

imagecatalog/Commands/RelayCommand.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 ImageCatalog_2.Commands;
+
+public class RelayCommand : System.Windows.Input.ICommand
+{
+    private readonly Action<object> _execute;
+    private readonly Predicate<object> _canExecute;
+
+    public RelayCommand(Action<object> execute) : this(execute, null) { }
+
+    public RelayCommand(Action<object> execute, Predicate<object> canExecute)
+    {
+        _execute = execute ?? throw new ArgumentNullException(nameof(execute));
+        _canExecute = canExecute;
+    }
+
+    // Manually raise this event in WinForms as CommandManager is unavailable
+    public event EventHandler CanExecuteChanged;
+
+    public bool CanExecute(object parameter)
+    {
+        return _canExecute == null || _canExecute(parameter);
+    }
+
+    public void Execute(object parameter)
+    {
+        _execute(parameter);
+    }
+
+    // Method to manually raise CanExecuteChanged event
+    public void RaiseCanExecuteChanged()
+    {
+        CanExecuteChanged?.Invoke(this, EventArgs.Empty);
+    }
+}