开放原子开发者工作坊

using  System;
using  iTextSharp.text;
using  iTextSharp.text.pdf;
using  System.IO;
public   class  form_combo
{
    
    
    [STAThread]
     public   static   void   Main( string [] args)
    {
        Document document  =   new  Document(PageSize.A4,  50 ,  50 ,  50 ,  50 );
         try
        {
             //  creation of the different writers
            PdfWriter writer  =  PdfWriter.GetInstance(document,  new  FileStream( @" e:\java\form_combo.Pdf " , FileMode.Create));
            
            document.Open();
            PdfContentByte cb  =  writer.DirectContent;
            cb.MoveTo( 0 ,  0 );
             string [] options  =   new   string []{ " Red " ,  " Green " ,  " Blue " };
            PdfFormField field  =  PdfFormField.CreateCombo(writer,  true , options,  0 );
            field.SetWidget( new  Rectangle( 100 ,  700 ,  180 ,  720 ), PdfAnnotation.HIGHLIGHT_INVERT);
            field.FieldName = ( " ACombo " );
            field.ValueAsString = ( " Red " );
            writer.AddAnnotation(field);
            document.Close();
            System.Console.Out.WriteLine( " FIM. " );
        }
         catch  (System.Exception de)
        {
            System.Console.Error.WriteLine(de.Message);
        }
    }
}