Stage 4: Creating and Showing the SmartPart

create an interface for the view and the presenter to communicate

Create a Interface named IMyView.cs in the MyModule project and change as .

public interface IMyView
{
event EventHandler Load;
string Message { get; set; }
}

Create a SmartPart user control

1. add a User Control named MyView.cs
2. Drag a Label control.
3. Implement the IMyView interface
   

1. add IMyView interface t othe class MyView
   

   public partial class MyView : UserControl, IMyView

2. right-click IMyView and click Implement Interface, then click Implement Interface in the fly-out menu.
3. modify property for Message in Interface.
   

public string Massage
{
get { return this.label1.Text;}
set { this.label1.Text = value;}
}

Create the presenter class

1. Create a class named MyPresenter.cs
2. add a variable of type IMyView
   

   public class MyPresenter
   {
   IMyView view;

3. Create a contructor for the class
   

   public MyPresenter(IMyView view)
   {
   this.view = view;
   view.Load += new EventHandler(view_Load);
   }

4. Create a event handler for the Load event
   

void view_Load(object sender, EventArgs e)
{
view.Message = "Hello World from a Module";
}

get a reference to the WorkItem

1. Open the MyModuleInit.cs add the following after the myCatalogService declaration.
   The variable will contain a reference to the root ShellWorkItem
   

   private WorkItem parentWorkItem;
   [ServiceDependency]
   public WorkItem ParentWorkItem
   {
   set { parentWorkItem = value; }
   }
   

2. Modify the load method.
   

   public override void Load()
   {
   base.Load();
   MyWorkItem myWorkItem =
   parentWorkItem.WorkItems.AddNew<MyWorkItem>();
   myWorkItem.Run(parentWorkItem.Workspaces["tabWorkspace1"]);
   }

Create and show the view

1. In MyWorkItem.cs, add
   

   using Microsoft.Practices.CompositeUI.SmartParts;

2. Create a public Run method that accepts as a parameter a reference to the TabWorkspace.
   

   public void Run(IWorkspace TabWorkspace)
   {
   IMyView view = this.Items.AddNew<MyView>();
   MyPresenter presenter = new MyPresenter(view);
   this.Items.Add(presenter);
   TabWorkspace.Show(view);
   }