c# - Header of Page with iTextSharp -

i doing pdf document itextsharp. created header pageevent event, want header different in pages. works setting same header pages.

but, wish different.

example: page 1=>header 1 page 2=>header 1 page 3=>header 2 page 4=>header 2

i solve it, troubles come when happens:

writer.pageevent=new pdffooter(params);     doc.open();   

the pageevent event must created above doc.open(); when put below, generates error. using c# visual studio community 2013.

how solve this? thanks!!

i solved problem now.

the solution this:

pdffooter events=new pdffooter();  pdfwriter writer = pdfwriter.getinstance(doc, response.outputstream);  doc.open(); foreach (var item in listreporte) {                        events = new pdffooter();    writer.pageevent = events;    events.ciudad = item.ciudad;    events.onstartpage(writer,doc);    //this solution    if (writer.pageevent != null)       writer.pageevent = null;  } 

in each iteration, assign null pageevent property.

but first, created pdffooter object (the class pdffooter contains onstartpage , onendpages events...), so, in class declared attributes data wanted display.

previously, couldn't instantiate pdffooter class below of doc.open(). code this:

writer.pageevent=new pdffooter(); doc.open(): 

so, tried create objet first , set pageevent property of writer object (i recommend this). , worked.

it feels wonderful.