Added projects MtApi4 and MtApi5

MtApi5TestClient/DelegateCommand.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows.Input;
+
+namespace MtApi5TestClient
+{
+    public class DelegateCommand : ICommand
+    {
+        private readonly Predicate<object> _canExecute;
+        private readonly Action<object> _execute;
+
+        public event EventHandler CanExecuteChanged;
+
+        public DelegateCommand(Action<object> execute)
+            : this(execute, null)
+        {
+        }
+
+        public DelegateCommand(Action<object> execute,
+                       Predicate<object> canExecute)
+        {
+            _execute = execute;
+            _canExecute = canExecute;
+        }
+
+        public bool CanExecute(object parameter)
+        {
+            if (_canExecute == null)
+            {
+                return true;
+            }
+
+            return _canExecute(parameter);
+        }
+
+        public void Execute(object parameter)
+        {
+            _execute(parameter);
+        }
+
+        public void RaiseCanExecuteChanged()
+        {
+            if (CanExecuteChanged != null)
+            {
+                CanExecuteChanged(this, EventArgs.Empty);
+            }
+        }
+    }
+}