Hi, Gurjinder.

When I develop my design-time form, I use following code:

// There is a class to show EventTab in PropertyGrid
internal class MyPropertyGrid : System.Windows.Forms.PropertyGrid
{
 private System.ComponentModel.Container components = null;
 public MyPropertyGrid()
 {
   InitializeComponent();
 }
 protected override void Dispose( bool disposing )
 {
   if( disposing )
   {
       if(components != null)
       {
           components.Dispose();
       }
   }
   base.Dispose( disposing );
 }

 #region Component Designer generated code
 private void InitializeComponent()
 {
   components = new System.ComponentModel.Container();
 }
 #endregion

 public void ShowEvents(bool show)
 {
   ShowEventsButton(show);
 }
 public bool DrawFlat
 {
   get { return DrawFlatToolbar; }
   set { DrawFlatToolbar = value; }
 }
}

and add next code to your code
...
private MyPropertyGrid propertyGrid;
...
// Initialization PropertyGrid
this.propertyGrid = new MyPropertyGrid();
...
this.propertyGrid.SelectedObjectsChanged += new EventHandler(OnPropertyGridSelectedObjectChanged);
this.propertyGrid.SelectedGridItemChanged += new SelectedGridItemChangedEventHandler(OnSelectedGridItemChanged);
...
protected void OnPropertyGridSelectedObjectChanged(object sender, EventArgs e)
{
  UpdatePropertyGridSite();
  this.propertyGrid.ShowEvents(true);
}

private PropertyDescriptor lastProperty;
private object lastValue;
private void OnSelectedGridItemChanged(object sender, SelectedGridItemChangedEventArgs e)
{
  GridItem gridItem = e.NewSelection;
  if (gridItem != null && (lastProperty = gridItem.PropertyDescriptor) != null)
  {
   Object selectedObj = this.propertyGrid.SelectedObject;
   if (selectedObj != null)
   {
    try
    {
     lastValue = lastProperty.GetValue(selectedObj);
     lastProperty.AddValueChanged(selectedObj, new EventHandler(OnPropertyChanged));
    }
    catch {}
   }
  }
}
...
protected void UpdatePropertyGridSite()
{
  if(propertyGrid != null)
  {
   propertyGrid.Site = null;
   IServiceProvider provider = GetPropertyGridServiceProvider();
   if(provider != null)
   {
    propertyGrid.Site = new MySite(provider, propertyGrid as IComponent);
    propertyGrid.PropertyTabs.AddTabType(typeof(System.Windows.Forms.Design.EventsTab));
   }
  }
}
protected IServiceProvider GetPropertyGridServiceProvider()
{
  object selObject = null;
  if (propertyGrid.SelectedObjects != null && propertyGrid.SelectedObjects.Length > 0)
   selObject = propertyGrid.SelectedObjects[0];
  else
   selObject = propertyGrid.SelectedObject;

  if (selObject is Component)
   return (selObject as Component).Site;

  return null;
}

I hope, I help you.

If you'll have some questions, you welcome

Hi Paul,

I have used your code for my custom control to show-up Events Tab section. But it is not showing the events tab at all.  I also referred the following link ..I am not able to find out solution. My requirement is i have custom control conains a property . This property contains collection of Object. Class for this object contains an event. This particular event is not showing up in design time.

I also referred the following link ; but for me it is not working:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=438792&SiteID=

From http://www.developmentnow.com/g/32_2004_7_0_0_123537/Urgent-Problem-in-adding-Ev
ents-tab-to-propertygrid.ht