Fill PDF Form with dynamic values

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C#

ASP.NET

PDF

hi all,

I am stuck here. actually I am trying to fill a PDF form using asp.net. I get some help and write the following code:

private void fillForm()
    {
        try
        {
            string formFile = Server.MapPath("") + @"\Forms\fw4.pdf";
            string savepath = Server.MapPath("") + @"\Forms\new_fw4.pdf";
            PdfReader pdfReader = new PdfReader(formFile);
            using (FileStream stream = new FileStream(savepath, FileMode.Create))
            {
                PdfStamper pdfStamper = new PdfStamper(pdfReader, stream);
                AcroFields formFields = pdfStamper.AcroFields;

                foreach (DictionaryEntry de in formFields.Fields)
                 {
                     formFields.SetField("field name", "field value");
                 }            
                pdfStamper.FormFlattening = true;
                pdfStamper.Close();
            }
        }
        catch
        {
        }
    }

I want the program to show all fields in a List.
I am unable to iterate all available fields using the foreach loop. Its giving me this error:

Cannot convert type 'System.Collections.Generic.KeyValuePair<string,iTextSharp.text.pdf.AcroFields.Item>' to 'System.Collections.DictionaryEntry'

any help would be greatly appreciated.