始终选中Itext复选框 [英] Itext checkbox is always checked

问题描述

我正在使用Itext创建一个pdf，我无法取消选中该复选框。这是我的代码：

I am using Itext to create a pdf and I cannot get the checkbox to uncheck. Here is my code:

RadioCheckField bt = new RadioCheckField(writer, new Rectangle(300, 300, 400, 400),
                "check1", "Yes");
bt.setCheckType(RadioCheckField.TYPE_CHECK);
bt.setBorderWidth(BaseField.BORDER_WIDTH_THICK);
bt.setBorderColor(BaseColor.BLACK);
bt.setBackgroundColor(BaseColor.WHITE);
bt.setChecked(false);
PdfFormField ck = bt.getCheckField();
writer.addAnnotation(ck);

你可以看到 bt.setChecked（false）在代码中，但仍然选中了复选框。我查看了文档，在我看来它应该以这种方式工作。我什么不明白？

You can see that the bt.setChecked(false) is in the code, but the checkbox is still checked. I looked at the docs and it seems to me that it is supposed to work this way. What do I not understand?

推荐答案

尝试以下方式，对我而言，它正在运作：

Try the following way, for me it is working:

public void addRadioGroup() throws Exception{
    if(!this.doc.isOpen()){
        this.doc.open();
    }

    PdfFormField radioGroup = PdfFormField.createRadioButton(this.writer, false);
    radioGroup.setFieldName("numbers");

    for(int i=0;i<3;i++){
        Rectangle rect = new Rectangle(130+(40*i), 430, 160+(40*i), 455);
        this.addRadioButtonKid(radioGroup, rect,String.valueOf(i));
    }
    this.writer.addAnnotation(radioGroup);  
}

private void addRadioButtonKid(PdfFormField radio, Rectangle rect, String onValue) throws Exception{

    RadioCheckField bt = new RadioCheckField(this.writer, rect, null, onValue);
    bt.setBorderWidth(BaseField.BORDER_WIDTH_THICK);
    bt.setBorderColor(Color.BLACK);
    bt.setBackgroundColor(Color.WHITE);
    bt.setCheckType(RadioCheckField.TYPE_CROSS);
    bt.setChecked(false);
    PdfFormField ck = bt.getCheckField();
    ck.setPlaceInPage(1);
    radio.addKid(ck);
}

我遇到的唯一问题是默认的检查风格不是改变。用户在2011年的邮件列表中报告了此问题在2011年。如果您需要自己的另一个样式补丁iText或使用Mark描述的解决方法。

The only problem I had was that the default "check style" wasn't changed. A user reported this problem back in 2011 on the mailinglist in 2011. If you need another style patch iText for yourself or use the workaround described by Mark.

更新：2之后多年来，他们似乎已经解决了最新的 iText版本5.4.3 中的问题（cp.MichaëlDemey的变化）

Update: After 2 years they seem to have fixed the problem in the latest iText version 5.4.3 (cp. the change of Michaël Demey)

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