使用复选框选择要在datagridview中复制的行

Question

我目前在VB.net，Windows窗体应用程序中工作。我有一个datagridview，我想使用一个按钮来更新复选框中检查的某些行。但是，我很难选择复选框单元格。这是一个数据绑定源，它与sql客户端一起运行。

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click

    Dim row As DataGridViewRow
    Dim cell As DataGridViewCell
    Dim i As Integer = 0
    With DataGridLine2
        For Each row In .Rows
            For Each DataGridViewCheckBoxCell In .Rows
                If DataGridViewCheckBoxCell.checkstate = 1 Then
                    Using conn1 As New SqlConnection(connstring)
                        conn1.Open()
                        Using comm1 As SqlCommand = New SqlCommand("UPDATE Production.dbo.tblFCordered SET Ordered = true", conn1)
                        End Using
                    End Using
                ElseIf DataGridViewCheckBoxCell.checkstate = 0 Then
                    Exit Sub
                End If

            Next

        Next
    End With

End Sub