如何在Vb.net中比较一个datagridview所有行索引与其他datagridview所有行索引？

Dim dgv1RowIndexes As New List(Of Integer)
For Each row As DataGridViewRow In DataGridView1.Rows
    dgv1RowIndexes.Add(row.Index)
Next

Dim dgv2RowIndexes As New List(Of Integer)
For Each row As DataGridViewRow In DataGridView2.Rows
    dgv2RowIndexes.Add(row.Index)
Next

Dim commonRowIndexes = dgv1RowIndexes.Intersect(dgv2RowIndexes)

For Each index As Integer In commonRowIndexes
    DataGridView1.Rows(index).DefaultCellStyle.BackColor = Color.Yellow
    DataGridView2.Rows(index).DefaultCellStyle.BackColor = Color.Yellow
Next