DatagridView KeyUp add New Row Problem

[Tengkorak]

Hi,
i have problem when addnew row at keyup event for datagridview control.
i want to add one row when method addRow() called.

this my code :

Public Class Form2
    Dim dt As New DataTable("view")
 
    Private Sub Form2_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        dt.Columns.Add(New DataColumn("Col1"))
        dt.Columns.Add(New DataColumn("Col2"))
        dg.DataMember = "view"
        dg.DataSource = dt
    End Sub
 
    'new rows
    Private Sub btnAddRow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddRow.Click
        addRow()
    End Sub
    Sub addRow()
        Dim dr As DataRow
        dr = dt.NewRow
        dr.Item(0) = ""
        dr.Item(1) = ""
        dt.Rows.Add(dr)
    End Sub
 
    Private Sub dg_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles dg.KeyUp
        If e.KeyData = Keys.Enter Then
            Dim cCol = dg.CurrentCell.ColumnIndex
            If cCol = 1 Then
                addRow()
            End If
            'End Select
        End If
    End Sub
End Class

the problem at dg_KeyUp code, Since more than 1 row created while I want only 1 line only.

thank you