你好朋友，你可以尝试这个代码：

Hello friend, You may try this code:

Private Sub DataGridView1_CellMouseDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.CellMouseDoubleClick

   DataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect

End Sub

让我知道它是否有效。 :)

- DD

Let me know if it works. :)
- DD