我正在使用 iTextSharp 和 CSharp 来创建 pdf。我需要添加无法编辑的表单域,如复选框、单选按钮和下拉菜单。
我用这个。。
FileStream pdffile = new FileStream(path + "/Pdf/tes.pdf",FileMode.Create);
PdfWriter writer = PdfWriter.GetInstance(doc, pdffile);
doc.Open();
Rectangle rect = new Rectangle(100, 100, 100, 100);
RadioCheckField checkbox = new RadioCheckField(writer, rect, "bhjabsdf", "on");
checkbox.CheckType = RadioCheckField.TYPE_CHECK;
PdfFormField field = checkbox.CheckField;
writer.AddAnnotation(field);
doc.Close();
但它不起作用。我也读过关于PdfStamper
. 但是我正在创建一个新的pdf,而不是更改现有的。所以我不知道我是否可以使用PdfStamper
?
谢谢..
编辑:
private void CreateRadioButton(PdfWriter writer, PdfContentByte cb,Font font)
{
Rectangle rect;
PdfFormField field;
PdfFormField radiogroup = PdfFormField.CreateRadioButton(writer, true);
radiogroup.FieldName = "language";
RadioCheckField radio;
int x = 20;
for (int i = 0; i < Petrol.Length; i++)
{
rect = new Rectangle(440 + i * x, 692, 450 + i * x, 682);
radio = new RadioCheckField(writer, rect, null, LANGUAGES[i]);
radio.BorderColor = GrayColor.GRAYBLACK;
radio.BackgroundColor = BaseColor.WHITE;
radio.CheckType = RadioCheckField.TYPE_CIRCLE;
if (Petrol[i] == "F")
radio.Checked = true;
field = radio.RadioField;
//Here i am setting readonly..
field.SetFieldFlags(PdfFormField.FF_READ_ONLY);
radiogroup.AddKid(field);
ColumnText.ShowTextAligned(cb, Element.ALIGN_LEFT,
new Phrase(Petrol[i], font), 451 + i * x, 684, 0);
if (i >= 1) x = 25;
}
writer.AddAnnotation(radiogroup);
}