读取使用iText的夏普复选框，单选按钮名称和值从PDF [英] Read Check Box, Radio Button Name and values from PDF using iText Sharp

问题描述

我有一个可填写的PDF包含复选框和单选按钮和文本框。

我要如何将CheckBox名称和它的价值也是我们怎么知道这是一个复选框/单选按钮？

我使用iTextSharp的，并有看看我下面code

  PdfReader pdfReader =新PdfReader（文件名）;
 pdfReader.SelectPages（37）;
        MemoryStream的ostream的=新的MemoryStream（）;
        PdfStamper模子=新PdfStamper（pdfReader，ostream的）;
        AcroFields形式= stamper.AcroFields;
        如果（form.Fields.Count（）大于0）
        {
            IDictionary的＆LT;字符串，AcroFields.Item＆GT; ODIC = form.Fields;            的foreach（在oDic.Keys串字段名）
            {
                //字段名 - 复选框名称;我需要确认是一个复选框...
            }            的foreach（AcroFields.Item OITEM在oDic.Values​​）
            {
                //我们怎么复选框值
            }
        }
 

解决方案

以下code可以帮助你，如果你仍然需要它。它仅适用于AcroForms

  INT BUTTON = 1;
INT CHECK_BOX = 2;
INT RADIO_BUTTON = 3;
INT TEXT_FIELD = 4;
INT LIST_BOX = 5;
INT COMBO_BOX = 6;PdfReader pdfReader =新PdfReader（路径）;
AcroFields AF = pdfReader.AcroFields;的foreach（在af.Fields VAR场）
{
    布尔isRadio = RADIO_BUTTON == af.GetFieldType（field.Key））;
}
 

编辑：

另外，field.Key是字段的名称和field.Value是在它的值

有关复选框，如果（field.Value ==是），则选择......如果是别的，它没有被选中。

编辑：

和我刚刚发现TRO如何让单选按钮选项，如果你需要他们。

 的myKey K =新的myKey（field.Key，af.GetField（field.Key），af.GetFieldType（field.Key））;
如果（k.isRadio（））
{
    尝试{k.options.AddRange（af.GetAppearanceStates（k.key））; }
    赶上{}
}
Keys.Add（K）;
 

I have a fillable PDF contains CheckBoxes and RadioButtons and TextBox.

How do i get the CheckBox Name and its value also how do we know that it is a checkbox / Radio Button?

i'm using iTextSharp and have look at my below code

 PdfReader pdfReader = new PdfReader(FileName);
 pdfReader.SelectPages("37");
        MemoryStream oStream = new MemoryStream();
        PdfStamper stamper = new PdfStamper(pdfReader, oStream);
        AcroFields form = stamper.AcroFields;
        if (form.Fields.Count() > 0)
        {
            IDictionary<string,AcroFields.Item> oDic= form.Fields;

            foreach (string FieldName in oDic.Keys)
            {
                //FieldName - CheckBox name; i need to confirm that is a Checkbox...
            }

            foreach (AcroFields.Item oItem in oDic.Values)
            {
                // how do we get check box values
            }
        }

解决方案

The following code may help you out, if you still need it. It only works for AcroForms

int BUTTON = 1;
int CHECK_BOX = 2;
int RADIO_BUTTON = 3;
int TEXT_FIELD = 4;
int LIST_BOX = 5;
int COMBO_BOX = 6;

PdfReader pdfReader = new PdfReader(path);
AcroFields af = pdfReader.AcroFields;

foreach (var field in af.Fields)
{
    bool isRadio = RADIO_BUTTON == af.GetFieldType(field.Key));
}

Edit:

Also, field.Key is the name of the field and field.Value is the value at it.

For checkboxes, if(field.Value == "Yes") then it is selected... if it is anything else, it is not selected.

Edit:

And I just found how tro get Radio Button options, if you are needing them.

myKey k = new myKey(field.Key, af.GetField(field.Key), af.GetFieldType(field.Key));
if (k.isRadio())
{
    try { k.options.AddRange(af.GetAppearanceStates(k.key)); }
    catch { }
}
Keys.Add(k);

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