Delete row in DGV(DataGridView) using checkboxes

Basically, in my first column I have checkboxes that are unbound.

I would either like to be able to remove the row by checking the checkboxes or clicking a button after a checkbox(s) are checked.

I have some code below that I 've been working with which I found on the web, but it's not working..

thanks

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        For Each row As DataGridViewRow In DataGridView1.Rows
            If (row.Cells.Item(0).Value = CheckState.Checked) Then
                DataGridView1.Rows.RemoveAt(0)                                                      'This way doesn't work
                DataGridView1.Rows.Remove(DataGridView1.SelectedRows(0))         'This way doesn't work either  
            End If
        Next
 End Sub

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