sample.cs

using (TXTextControl.ServerTextControl tx = new TXTextControl.ServerTextControl()) {
  tx.Create();

  tx.Selection.FontSize = 800;
  tx.Selection.Text = "Sample Form\r\n\r\n";

  tx.Selection.FontSize = 400;
  tx.Selection.Text = "Company name:\r\n";

  // add a text form field
  TXTextControl.TextFormField textFormField = new TXTextControl.TextFormField(1000);
  textFormField.Name = "company_name";
  textFormField.Text = "Text Control, LLC";
  tx.FormFields.Add(textFormField);

  tx.Selection.Text = "\r\n\r\nCountry:\r\n";

  // add a text form field
  TXTextControl.SelectionFormField selectionFormField = new TXTextControl.SelectionFormField(1000);
  selectionFormField.Name = "company_country";
  selectionFormField.Items = new string[] { "United States", "Germany", "Italy" };
  selectionFormField.SelectedIndex = 0;
  tx.FormFields.Add(selectionFormField);

  // export the document as PDF
  tx.Save("results.pdf", TXTextControl.StreamType.AdobePDF);
}