Subject: Hiding a form field when a check box value is selected 2007-10-10 - By swapna reddy
Back
I have created an interactive PDF Form dynamically from a bean. It has multiple
form fields like Textbox, selectbox,checkbox n so on...
I am trying to figure out, how to hide a form fieled when a particular option
of checkbox/radiobutton/selectbox is selected. Where do I need to trigger the
event after creating a javascript function using writer.addJavaScript(..)? Is
it at the parent checkbox level or at the option level? How do I call the
Javascript, what wud be the action??
Any help regarding the same would be highly appreciated.....The piece of code
am trying to execute is as follows:
PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream("C:/
/SamplePDFForm.pdf"));
document.open();
writer.addJavaScript(
"function actionOnChange(){var question=this.getField('Component(s) Origin')
;app.alert('<P>Component(s) Origin</P>:'+this.getField('<P>Component(s) Origin<
/P>'));if(this.getField('Ruminant.Bovine').value=='On')){question.display =
display.hidden;app.alert('Bovine value:'+this.getField('Ruminant.Bovine').value
)} else question.display = display.visible;}",false);
PdfPTable checkboxOptionsTable = new PdfPTable(3);
checkboxOptionsTable.setWidthPercentage(100f);
float[] relativeWidths = {5.0f,50.0f,45.0f};
checkboxOptionsTable.setWidths(relativeWidths);
PdfFormField multipleCheckbox = PdfFormField.createCheckBox(writer);
multipleCheckbox.setButton(PdfFormField.FF_MULTISELECT);
multipleCheckbox.setFieldName(questionDataVO.getQuestionText().trim());
PdfAppearance cbOff = cb.createAppearance(10, 10);
PdfAppearance cbOn = cb.createAppearance(10, 10);
cbOff.rectangle(1, 1, 8, 8);
cbOff.stroke();
cbOn.rectangle(1, 1, 8, 8);
cbOn.stroke();
cbOn.moveTo(1, 1);
cbOn.lineTo(9, 9);
cbOn.moveTo(1, 9);
cbOn.lineTo(9, 1);
cbOn.fillStroke();
laQuestionOptions = questionBO.getAllQuestionOptions(questionDataVO
.getQuestionId());
for (int j = 0; j<laQuestionOptions.size();j++){
QuestionOptionsVO questionOptionsVO = (QuestionOptionsVO) laQuestionOptions
.get(j);
questionOptionsVO = (QuestionOptionsVO) laQuestionOptions.get(j);
PdfFormField multipleCheckbox1 = PdfFormField.createEmpty(writer);
multipleCheckbox1.setFieldName(questionOptionsVO.getControlLabelText());
multipleCheckbox1.setValueAsName(questionOptionsVO.getControlLabelText());
multipleCheckbox1.setValueAsString(questionOptionsVO.getControlLabelValue());
multipleCheckbox1.setAppearanceState("Off");
multipleCheckbox1.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, "Off", cbOff);
multipleCheckbox1.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, "On", cbOn);
if("Ruminant".equals(questionDataVO.getQuestionText())& "Bovine".equals
(questionOptionsVO.getControlLabelText()))
{ multipleCheckbox1.setAdditionalActions(PdfFormField.AA_DOWN
,PdfAction.javaScript("actionOnChange();\r",writer));
}
multipleCheckbox.addKid(multipleCheckbox1);
PdfPCell cell = new PdfPCell();
cell.setCellEvent(new CheckboxFormField(writer,questionOptionsVO
.getControlLabelText(),multipleCheckbox1));
cell.setBorderColor(Color.white);
cell.setBorder(Rectangle.NO_BORDER);
checkboxOptionsTable.addCell(cell);
}
Thanks
Swapna.
swapna
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<div>I have created an interactive PDF Form dynamically from a bean. It has
multiple form fields like Textbox, selectbox,checkbox n so on...</div> <div>
</div> <div>I am trying to figure out, how to hide a form fieled when a
particular option of checkbox/radiobutton/selectbox is selected. Where do
I need to trigger the event after creating a javascript function using writer
.addJavaScript(..)? Is it at the parent checkbox level or at the option level?
How do I call the Javascript, what wud be the action?? </div> <div> </div
> <div>Any help regarding the same would be highly appreciated.....The piece of
code am trying to execute is as follows:</div> <div> </div> <div
>PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream("C:/
/SamplePDFForm.pdf"));<BR>document.open();<BR><STRONG>writer.addJavaScript(<BR>
"function actionOnChange(){var question=this.getField('Component(s) Origin');app
.alert('<P>Component(s)
Origin</P>:'+this.getField('<P>Component(s) Origin</P>'));if
(this.getField('Ruminant.Bovine').value=='On')){question.display = display
.hidden;app.alert('Bovine value:'+this.getField('Ruminant.Bovine').value)} else
question.display = display.visible;}",false);</STRONG></div> <div> </div>
<div>PdfPTable checkboxOptionsTable = new PdfPTable(3);<BR
>checkboxOptionsTable.setWidthPercentage(100f);<BR>float[] relativeWidths = {5
.0f,50.0f,45.0f};<BR>checkboxOptionsTable.setWidths(relativeWidths);<BR
>PdfFormField multipleCheckbox = PdfFormField.createCheckBox(writer);<BR
>multipleCheckbox.setButton(PdfFormField.FF_MULTISELECT);<BR>multipleCheckbox
.setFieldName(questionDataVO.getQuestionText().trim());<BR>PdfAppearance cbOff =
cb.createAppearance(10, 10);<BR>PdfAppearance cbOn = cb.createAppearance(10, 10
);<BR>cbOff.rectangle(1, 1, 8, 8);<BR>cbOff.stroke();<BR>cbOn.rectangle(1, 1, 8,
8);<BR>cbOn.stroke();<BR>cbOn.moveTo(1, 1);<BR>cbOn.lineTo(9,
9);<BR>cbOn.moveTo(1, 9);<BR>cbOn.lineTo(9, 1);<BR>cbOn.fillStroke();<BR
>laQuestionOptions = questionBO.getAllQuestionOptions(questionDataVO
.getQuestionId());<BR>for (int j = 0; j<laQuestionOptions.size();j++){<BR>
QuestionOptionsVO questionOptionsVO = (QuestionOptionsVO)
laQuestionOptions.get(j);<BR> questionOptionsVO = (QuestionOptionsVO)
laQuestionOptions.get(j);<BR> PdfFormField multipleCheckbox1 =
PdfFormField.createEmpty(writer);<BR> multipleCheckbox1.setFieldName
(questionOptionsVO.getControlLabelText());<BR> multipleCheckbox1
.setValueAsName(questionOptionsVO.getControlLabelText());<BR> 
;multipleCheckbox1.setValueAsString(questionOptionsVO.getControlLabelValue());
<BR> multipleCheckbox1.setAppearanceState("Off");<BR> 
;multipleCheckbox1.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, "Off", cbOff);
<BR> multipleCheckbox1.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, "On",
cbOn);<BR><STRONG> if("Ruminant".equals(questionDataVO.getQuestionText())
& "Bovine".equals(questionOptionsVO.getControlLabelText()))<BR> {
multipleCheckbox1.setAdditionalActions(PdfFormField.AA_DOWN
,PdfAction.javaScript("actionOnChange();\r",writer));<BR> }<BR></STRONG>
multipleCheckbox.addKid(multipleCheckbox1);<BR> PdfPCell cell = new
PdfPCell();<BR> cell.setCellEvent(new CheckboxFormField(writer
,questionOptionsVO.getControlLabelText(),multipleCheckbox1));<BR> cell
.setBorderColor(Color.white);<BR> cell.setBorder(Rectangle.NO_BORDER);<BR>
checkboxOptionsTable.addCell(cell);<BR>}</div> <div> </div> <div>
</div> <div>Thanks</div> <div>Swapna.</div> <div> </div> <div>
</div><BR><BR>swapna<p> 
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