What is the common way to check the check box field in a pdf using iTextsharp?

问题

I am filling the data for a fillable pdf using iTextsharp. There are n number of checkboxes in the pdf form. I have set the value for the check boxes using "Yes" or "No". This works fine. But some of the check boxes does not work in this way; instead i need to use 1 or 0 to make it work. So can anyone help me what is the common way to check/uncheck the checkboxes in pdf using iTextSharp?

Thanks in Advance,

Snowwhite

回答1:

Open chosen PDF and convert it.

PdfReader reader = new PdfReader(fileNameIn);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(fileNameOut));
AcroFields form = stamper.getAcroFields();

Inspect the form objects Fields > Keys > Results view to find the string value of a Check Box, in my case is was "Check Box1"

String[] checkboxstates = form.GetAppearanceStates("Check Box1");

Inspect the checkboxstates variable. [0] = value of non checked, [1] = value of checked. Then to make it checked

fields.SetField("Check Box1", checkboxstates[1])

回答2:

you can find in this way:

PdfReader reader = new PdfReader(fileNameIn);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(fileNameOut));
AcroFields form = stamper.getAcroFields();

form.setField("Name","Test Name");
form.setField("odot","123456");
form.setField("Consortium","A Testing Co");
form.setField("PName","My Name");
form.setField("date","10/14/03");
form.setField("Box1","true"); //This is the checkbox control
stamper.close();

hope this help

回答3:

There is no "common way". You need to know the check/uncheck values in order to change them.

There's a similar question I answered where I showed how to find out those values... Ah!

Get the export value of a checkbox using iTextSharp

回答4:

pdfFormFields.SetField("formfieldchkbox", "Yes"); pdfFormFields.SetField("formfieldchkbox", "No");

That should do the job.

回答5:

I have done like this

stamp.AcroFields.SetField("chk1", "Yes");
stamp.AcroFields.SetField("chk2", "No");

回答6:

I find that I can set export value of check box control in PDF file using Adobe Acrobat, When the export value is set as "anytext" I can check the checkbox using following code:

form.setField("Box1","anytext")

Property window of Check box

来源：https://stackoverflow.com/questions/4827937/what-is-the-common-way-to-check-the-check-box-field-in-a-pdf-using-itextsharp

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