in traceabilitytool/mainform.cs [139:146]
private void chkTextOutput_CheckedChanged(object sender, EventArgs e)
{
outputText = chkTextOutput.Checked;
btnGenerateReport.Enabled = (chkTextOutput.Checked || chkCSVOutput.Checked) &&
Directory.Exists(txtRootPath.Text) &&
Directory.Exists(txtOutputPath.Text);
}