diff --git a/samples/eC/Designer.ec b/samples/eC/Designer.ec
new file mode 100644
index 00000000..38ca035f
--- /dev/null
+++ b/samples/eC/Designer.ec
@@ -0,0 +1,337 @@
+import "ide"
+
+class Designer : DesignerBase
+{
+   ~Designer()
+   {
+      if(GetActiveDesigner() == this)
+      {
+         SetActiveDesigner(null);
+      }
+      if(classDesigner)
+         delete classDesigner;
+   }
+
+   // *** DesignerBase Implementation ***
+
+   void ModifyCode()
+   {
+      codeEditor.ModifyCode();
+   }
+
+   void UpdateProperties()
+   {
+      codeEditor.DesignerModifiedObject();
+   }
+
+   void CodeAddObject(Instance instance, ObjectInfo * object)
+   {
+      codeEditor.AddObject(instance, object);
+   }
+
+   void SheetAddObject(ObjectInfo object)
+   {
+      codeEditor.sheet.AddObject(object, object.name, typeData, true); //className, true);
+   }
+
+   void AddToolBoxClass(Class _class)
+   {
+      ((IDEWorkSpace)master).toolBox.AddControl(_class);
+   }
+
+   void AddDefaultMethod(Instance instance, Instance classInstance)
+   {
+      Class _class = instance._class;
+      Method defaultMethod = null;
+
+      for( ; _class; _class = _class.base)
+      {
+         Method method;
+         int minID = MAXINT;
+         for(method = (Method)_class.methods.first; method; method = (Method)((BTNode)method).next)
+         {
+            if(method.type == virtualMethod)
+            {
+               if(!method.dataType)
+                  method.dataType = ProcessTypeString(method.dataTypeString, false);
+               if(method.vid < minID && (instance == classInstance || (method.dataType.thisClass && eClass_IsDerived(classInstance._class, method.dataType.thisClass.registered))))
+               {
+                  defaultMethod = method;
+                  minID = method.vid;
+               }
+            }
+         }
+         if(defaultMethod)
+            break;
+      }
+      codeEditor.AddMethod(defaultMethod);
+   }
+
+   bool ObjectContainsCode(ObjectInfo object)
+   {
+      // Confirmation if control contains code
+      if(object.instCode)
+      {
+         MembersInit members;
+         if(object.instCode.members)
+         {
+            for(members = object.instCode.members->first; members; members = members.next)
+            {
+               if(members.type == methodMembersInit)
+               {
+                  //if(!Code_IsFunctionEmpty(members.function))
+                  {
+                     return true;
+                  }
+               }
+            }
+         }
+      }
+      return false;
+   }
+
+   void DeleteObject(ObjectInfo object)
+   {
+      if(codeEditor)
+         codeEditor.DeleteObject(object);
+   }
+
+   void RenameObject(ObjectInfo object, const char * name)
+   {
+      if(object && (name || !object.classDefinition))
+         codeEditor.RenameObject(object, name);
+   }
+
+   bool FindObject(Instance * object, const char * string)
+   {
+      ObjectInfo classObject;
+      for(classObject = codeEditor.classes.first; classObject; classObject = classObject.next)
+      {
+         ObjectInfo check;
+         if(classObject.name && !strcmp(string, classObject.name))
+         {
+            *object = classObject.instance;
+            break;
+         }
+         for(check = classObject.instances.first; check; check = check.next)
+         {
+            if(check.name && !strcmp(string, check.name))
+            {
+               *object = check.instance;
+               break;
+            }
+         }
+         if(check)
+            return true;
+      }
+      return false;
+   }
+
+   void SelectObjectFromDesigner(ObjectInfo object)
+   {
+      codeEditor.SelectObjectFromDesigner(object);
+   }
+
+   borderStyle = sizable;
+   isActiveClient = true;
+   hasVertScroll = true;
+   hasHorzScroll = true;
+   hasClose = true;
+   hasMaximize = true;
+   hasMinimize = true;
+   text = $"Designer";
+   menu = Menu { };
+   anchor = Anchor { left = 300, right = 150, top = 0, bottom = 0 };
+
+   ToolBox toolBox;
+   CodeEditor codeEditor;
+
+   Menu fileMenu { menu, $"File", f };
+   MenuItem fileSaveItem
+   {
+      fileMenu, $"Save", s, ctrlS;
+      bool NotifySelect(MenuItem selection, Modifiers mods)
+      {
+         return codeEditor.MenuFileSave(selection, mods);
+      }
+   };
+   MenuItem fileSaveAsItem
+   {
+      fileMenu, $"Save As...", a;
+      bool NotifySelect(MenuItem selection, Modifiers mods)
+      {
+         return codeEditor.MenuFileSaveAs(selection, mods);
+      }
+   };
+   bool debugClosing;
+
+   bool OnClose(bool parentClosing)
+   {
+      if(!parentClosing)
+      {
+         if(codeEditor && codeEditor.inUseDebug && !debugClosing)
+         {
+            debugClosing = true;
+            closing = false;
+            if(CloseConfirmation(false))
+            {
+               visible = false;
+               if(modifiedDocument)
+                  OnFileModified({ modified = true }, null);
+            }
+            debugClosing = false;
+            return false;
+         }
+         if(codeEditor && !codeEditor.closing && !debugClosing)
+         {
+            if(!codeEditor.visible)
+            {
+               if(!codeEditor.Destroy(0))
+                  return false;
+               else
+                  codeEditor = null;
+            }
+            else
+            {
+               visible = false;
+               return false;
+            }
+         }
+      }
+      return true;
+   }
+
+   bool OnActivate(bool active, Window previous, bool * goOnWithActivation, bool direct)
+   {
+      if(active)
+      {
+         codeEditor.EnsureUpToDate();
+         codeEditor.fixCaret = true;
+         /*
+         if(classDesigner)
+            classDesigner.Activate();
+         */
+      }
+      return true;
+   }
+
+   bool OnKeyHit(Key key, unichar ch)
+   {
+      return codeEditor.sheet.OnKeyHit(key, ch);
+   }
+
+   watch(modifiedDocument)
+   {
+      fileSaveItem.disabled = !modifiedDocument && codeEditor.fileName;
+   };
+
+   // *** METHODS ACCESSED FROM PROPERTY SHEET/TOOLBOX/CODE EDITOR ***
+   void Reset()
+   {
+      if(classDesigner)
+      {
+         classDesigner.Reset();
+         classDesigner.SelectObject(null, null);
+         classDesigner.Destroy(0);
+         delete classDesigner;
+      }
+   }
+
+   void FillToolBox()
+   {
+      if(this && classDesigner)
+         classDesigner.ListToolBoxClasses(this);
+   }
+
+   void SelectObject(ObjectInfo object, Instance instance)
+   {
+      ClassDesignerBase classDesigner = this.classDesigner;
+#ifdef _DEBUG
+      if(instance && instance._class.module.application != codeEditor.privateModule)
+         printf("warning: SelectObject: instance._class.module.application != codeEditor.privateModule\n");
+#endif
+      if(!classDesigner || !instance || classDesigner._class != (Class)eInstance_GetDesigner(instance))
+      {
+         if(classDesigner)
+         {
+            classDesigner.SelectObject(null, null);
+            classDesigner.Destroy(0);
+            classDesigner = null;
+            delete this.classDesigner;
+         }
+         if(instance)
+         {
+            this.classDesigner = classDesigner = eInstance_New(eInstance_GetDesigner(instance));
+            incref classDesigner;
+            //if(!classDesigner.parent)
+            {
+               classDesigner.parent = this;
+               classDesigner.anchor = Anchor { left = 0, right = 0, top = 0, bottom = 0 };
+            }
+            classDesigner.Create();
+         }
+      }
+      // Call class editor SelectObject
+      if(classDesigner)
+         classDesigner.SelectObject(object, instance);
+   }
+
+   void AddObject()
+   {
+      // Call class editor AddObject
+      if(classDesigner)
+         classDesigner.AddObject();
+      if(visible)
+         Activate();
+      else
+         codeEditor.Activate();
+   }
+
+   void CreateObject(Instance instance, ObjectInfo object, bool isClass, Instance iclass)
+   {
+      subclass(ClassDesignerBase) designerClass = eInstance_GetDesigner(instance);
+
+      // Call class editor CreateObject
+      if(designerClass)
+         designerClass.CreateObject(this, instance, object, isClass, iclass);
+   }
+
+   void ::PostCreateObject(Instance instance, ObjectInfo object, bool isClass, Instance iclass)
+   {
+      subclass(ClassDesignerBase) designerClass = eInstance_GetDesigner(instance);
+
+      // Call class editor PostCreateObject
+      if(designerClass)
+         designerClass.PostCreateObject(instance, object, isClass, iclass);
+   }
+
+   void ::DroppedObject(Instance instance, ObjectInfo object, bool isClass, Instance iclass)
+   {
+      subclass(ClassDesignerBase) designerClass = eInstance_GetDesigner(instance);
+
+      // Call class editor PostCreateObject
+      if(designerClass)
+         designerClass.DroppedObject(instance, object, isClass, iclass);
+   }
+
+   void PrepareTestObject(Instance instance)
+   {
+      subclass(ClassDesignerBase) designerClass = eInstance_GetDesigner(instance);
+      if(designerClass)
+         designerClass.PrepareTestObject(this, instance);
+   }
+
+   void ::DestroyObject(Instance instance)
+   {
+      subclass(ClassDesignerBase) designerClass = eInstance_GetDesigner(instance);
+      if(designerClass)
+         designerClass.DestroyObject(instance);
+   }
+
+   void ::FixProperty(Property prop, Instance instance)
+   {
+      subclass(ClassDesignerBase) designerClass = eInstance_GetDesigner(instance);
+      if(designerClass)
+         designerClass.FixProperty(prop, instance);
+   }
+}