OK, I am now getting one row saved to my datatable. Is there something else I should be doing for the DGV. It is getting the last record selected.

Here is where I save to DataTable
Code:
Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOK.Click
        intGrpSize = n

        Create_ClientTable()
       
        For Each row As DataGridViewRow In Me.dgvClients.SelectedRows()
            _ClientTable.Rows.Add(row.Cells("ClientID").Value, row.Cells("Name").Value, row.Cells("Program").Value)
        Next
        
        frmChildWindow.CreateSession()
        Me.Close()
    End Sub
Here is where I am loading a DGV on another form to show me the results
Code:
Private Sub Load_DGV()
        dataGridView1.DataSource = _ClientTable
        End Sub