Problems with Custom DataGridViewRowCollection - vb.net

Question

I am currently working on a multi thread project. The idea is to implement the threat security into my own custom controls. Now I want to override properties of the DataGridViewRowCollection such as the DataGridView.Rows.Add() and DataGridView.Rows.Remove(row as DataGridViewRow) with my code for the threat security.
My idea was to use an own DataGridViewRowCollection XRowCollection instead of the basic DataGridViewRowCollection. When I try to override the Rows property, I get the compiler message:
"Public Overrides ReadOnly Property Rows As XRowCollection" and
"Public Shadows Property Rows As
System.Windows.Forms.DataGridViewRowCollection" cannot overload each
other because they differ only by return types
I would be thankful for any solution or any alternate ideas to implement the threat secure code directly in my cutsom contorl.
Public Class XDataGridView
Inherits System.Windows.Forms.DataGridView
Private _Rows As XRowCollection
Public Overrides ReadOnly Property Rows As XRowCollection
Get
If _Rows Is Nothing Then
_Rows = New NoxRowCollection(Me)
End If
Return _Rows
End Get
End Property
End Class
Public Class XRowCollection
Inherits DataGridViewRowCollection
Public Sub New(dataGridView As XDataGridView)
MyBase.New(CType(dataGridView, DataGridView))
End Sub
Private Delegate Sub RowsRemoveCallback(DataGridViewRow As System.Windows.Forms.DataGridViewRow)
Public Shadows Sub Remove(DataGridViewRow As System.Windows.Forms.DataGridViewRow)
If MyBase.DataGridView.InvokeRequired Then
Dim d As New RowsRemoveCallback(AddressOf Remove)
MyBase.DataGridView.Invoke(d, New Object() {DataGridViewRow})
Else
Me.DataGridView.Rows.Remove(DataGridViewRow)
End If
End Sub
End Class