private void plausableDeniabilityFilesRemoveUpdate()
{
	plausibleDeniabilityFilesRemove.Enabled = plausibleDeniability.Checked &&
		plausibleDeniabilityFiles.SelectedIndices.Count > 0;

    if (plausibleDeniability.Checked && plausibleDeniabilityFiles.Items.Count == 0)
    {
        errorProvider.SetError(plausibleDeniabilityFiles, S._("Erasures with plausible deniability " +
            "was selected, but no files were selected to be used as decoys."));
        errorProvider.SetIconPadding(plausibleDeniabilityFiles, -16);
    }
}