Need help with DevComponents Tabcontrol

[InfinityGamer]

I'm having problems adding a new WebBrowser to the new created tab

here is full code

Error	6	'Control' is not a member of 'DevComponents.DotNetBar.TabItem'.	

   Public Sub AddTab(ByRef URL As String, ByRef TabControl As DevComponents.DotNetBar.TabControl)
        Dim NewBrowser As New CustomBrowser
        Dim NewTab As New DevComponents.DotNetBar.TabItem
        NewBrowser.Tag = NewTab
        NewTab.Tag = NewBrowser
        TabControl.Tabs.Add(NewTab)
        NewTab.Control.add(NewBrowser)  < Line 6 error
        NewBrowser.Dock = DockStyle.Fill
        NewBrowser.Navigate(URL)
    End Sub

'nothing wrong with the Custom Browser 
Public Class CustomBrowser
    Inherits WebBrowser

    Private Sub DocCompleted() Handles Me.DocumentCompleted
        Dim TP As TabPage = Me.Tag
        If Me.DocumentTitle.Length > 10 Then
            TP.Text = Me.DocumentTitle.Substring(0, 9) & "..."
        Else
            TP.Text = Me.DocumentTitle
        End If

        Me.ScriptErrorsSuppressed = True
    End Sub
End Class

and i'm new to the forums