Please take a look at the CreateRadioInTable example.
In this example, we create a PdfFormField
for the radio group and we add it after constructing and adding the table:
PdfFormField radiogroup = PdfFormField.createRadioButton(writer, true);
radiogroup.setFieldName("Language");
PdfPTable table = new PdfPTable(2);
// add cells
document.add(table);
writer.addAnnotation(radiogroup);
When we create the cells for the radio buttons, we add an event, for instance:
cell.setCellEvent(new MyCellField(radiogroup, "english"));
The event looks like this:
class MyCellField implements PdfPCellEvent {
protected PdfFormField radiogroup;
protected String value;
public MyCellField(PdfFormField radiogroup, String value) {
this.radiogroup = radiogroup;
this.value = value;
}
public void cellLayout(PdfPCell cell, Rectangle rectangle, PdfContentByte[] canvases) {
final PdfWriter writer = canvases[0].getPdfWriter();
RadioCheckField radio = new RadioCheckField(writer, rectangle, null, value);
try {
radiogroup.addKid(radio.getRadioField());
} catch (final IOException ioe) {
throw new ExceptionConverter(ioe);
} catch (final DocumentException de) {
throw new ExceptionConverter(de);
}
}
}