## HtmlSaveOptions.ExportDropDownFormFi property Controls how drop-down form fields are saved to HTML or MHTML. Default value is `false`. ```csharp public bool ExportDropDownFormFi { get; set; } ``......Document doc = new Document(); DocumentBuilder builder = new DocumentBuilder(doc);...InsertComboBox("MyComboBox", new[] { "One", "Two", "Three" },...