Завершено задание преподавателя

Trolleybus/Trolleybus/FormMapWithSetTrolleybus.cs

@@ -38,6 +38,11 @@ namespace Trolleybus
                 listBoxMaps.Items.Add(_mapsCollection.Keys[i]);
             }
 
+            foreach (string map in _mapsCollection.Keys)
+            {
+                listBoxMaps.Items.Add(map);
+            }
+
             if (listBoxMaps.Items.Count > 0 && (index == -1 || index >= listBoxMaps.Items.Count))
             {
                 listBoxMaps.SelectedIndex = 0;
@@ -153,7 +158,7 @@ namespace Trolleybus
         /// <param name="e"></param>
         private void ButtonShowStorage_Click(object sender, EventArgs e)
         {
-            if (listBoxMaps.SelectedIndex == -1)
+            if (_mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? String.Empty] == null)
             {
                 return;
             }
@@ -185,23 +190,23 @@ namespace Trolleybus
             }
             //получаем имя кнопки
             string name = ((Button)sender)?.Name ?? string.Empty;
-            Direction enums = Direction.None;
+            Direction dir = Direction.None;
             switch (name)
             {
-                case "buttonsUp":
+                case "buttonUp":
-                    enums = Direction.Up;
+                    dir = Direction.Up;
                     break;
-                case "buttonsDown":
+                case "buttonDown":
-                    enums = Direction.Down;
+                    dir = Direction.Down;
                     break;
-                case "buttonsLeft":
+                case "buttonLeft":
-                    enums = Direction.Left;
+                    dir = Direction.Left;
                     break;
-                case "buttonsRight":
+                case "buttonRight":
-                    enums = Direction.Right;
+                    dir = Direction.Right;
                     break;
             }
-            pictureBox.Image = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty].MoveObject(enums);
+            pictureBox.Image = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty].MoveObject(dir);
         }
     }
 }