Remove a TabPage

I am using C# 2005 to create a Windows application. I have a MDIForm (frmMainMenu) which contains a Menustrip and a
TabControl. My ChildForm is frmPurchaseEntry. When the user clicks on a particular Menu option a new TabPage is created and
the child form is displayed within the TabPage.
I am using the following code in the MenuClick event of the MDIForm (frmMainMenu) :

 


frmPurchaseEntry PurchaseEntry = new 
frmPurchaseEntry();
PurchaseEntry.MdiParent = this;
PurchaseEntry.TabCtrl 
= tabControl1;
PurchaseEntry.TopLevel = false;
PurchaseEntry.Visible = 
true;
PurchaseEntry.FormBorderStyle = 
FormBorderStyle.None;
PurchaseEntry.Dock = DockStyle.Fill;

TabPage tpPurchaseEntry = new TabPage();
tpPurchaseEntry.Parent = 
tabControl1;
tpPurchaseEntry.Text = 
PurchaseEntry.Text;
tpPurchaseEntry.Controls.Add(PurchaseEntry);

tpPurchaseEntry.Show();
PurchaseEntry.Select();

tabControl1.SelectedTab = tpPurchaseEntry ;

Everything is OK upto this. But I am unable to remove the TabPage when the ChildForm is closed. The following command only closes the ChildForm, but the empty TabPage still remains.

 this.Close();

I know the syntax to remove a TabPage is

 tabControl1.TabPages.Remove(tabControl1.SelectedTab);

But Im unable to access the TabControl of MDIForm from the ChildForm. I tried to use Public modifier for the TabControl, but still it is not exposed from the ChildForm.
How can I remove AND dispose a particular TabPage (with a particular Tab Text) from the ChildForm???
Thank you.
Lalit Kumar Barik