How to define multiple actions for a PushbuttonField?
In a PDF, I can set up a button to:
- Submit the FDF data to my RestAPI
- Redirect to a webpage (to tell user 'Thanks') and that works perfectly.
But I need to do this using code... I am using iTextSharp in the following way:
pb
is my pushbutton...sURL
is the URL I need the data to go to...
This is my code:
PdfFormField pff = pb.Field; pff.SetAdditionalActions(PdfName.A, PdfAction.CreateSubmitForm(sURL, null, PdfAction.SUBMIT_XFDF)); af.ReplacePushbuttonField("submit", pff);
PdfName.AA
and PdfName.U
based on examples and I am not certain what the different names are for. Unfortunately, none of them solve my problem.
Apparently, the SetAdditionalActions()
replaces the existing actions. I have also tried using annotations and just adding a button that doesn't exist.
Posted on StackOverflow on Apr 18, 2014 by JohnKochJr
You are looking for a concept called chained actions. This is how it’s done in iText 7:
PdfAction action = PdfAction.createJavaScript("app.alert('Think before you print!');");
action.next(PdfAction.createJavaScript("printCurrentPage(this.pageNum);"));
action.next(PdfAction.createURI("https://www.panda.org/savepaper/"));
Link link = new Link("print this page", action);
Paragraph paragraph = new Paragraph(link);
In this case, we have an action that shows an alert, prints a page and redirects to an URL. These actions are chained to each other using the next()
method.
It is very easy to port this Java code to C# replacing lower case with the upper while using methods.
Click How to define multiple actions for a PushbuttonField? if you want to see how to answer this question in iText 5.