我發現互動pdf可以讓使用者參與,可以輸入表單欄位,並檢查資料這樣PDF就可以變成Game了。
所以我就將crystal report產出的PDF資料,再用iTextSharp將PDF加入TextField,PushbuttonField變成互動PDF,就可以讓使用者輸入答案或直接看答案。
成語滿格 CROSSWORD 下載互動 sample pdf
//用iTextSharp加入TextField
//96個填入格子 預設空白
for (int i = 0; i < 96; i++)
{
X = i % 8;
Y = i / 8;
var W = new TextField(stamp.Writer, new Rectangle(x1, y1, x2, y2), "W" + i.ToString())
{
Alignment = Element.ALIGN_CENTER & Element.ALIGN_MIDDLE,
MaxCharacterLength = 1,
FontSize = 11,
Font = baseFont,
TextColor = Color.BLUE,
};
PdfFormField textField = W.GetTextField();
//輸入完檢查 正確否
string jschk = string.Format("chk(event,{0});", i.ToString());
PdfAction onBlur = PdfAction.JavaScript(jschk, stamp.Writer);
textField.SetAdditionalActions(PdfName.BL, onBlur); // On blur
stamp.AddAnnotation(textField, 1);
}
//用iTextSharp加入PushbuttonField
//數個 看答案按鈕 hover可以看提示,click可以直接show答案
string js = string.Format("showdata({0});",idx.ToString());
PdfAction action = PdfAction.JavaScript( js, stamp.Writer);
var ball = new PushbuttonField(stamp.Writer, new Rectangle(x1, y1, x2, y2), "ball" + idx.ToString());
ball.Text = chengyu_def // tooltip adobe edge ok
PdfFormField ballField = ball.Field;
ballField.Action = action;
stamp.AddAnnotation(ballField, 1);
