How to rename PDF form fields using PDF Sharp? - pdf

I am using PDF Sharp and have one issue only. I cannot rename form fields. We have a field called 'x' and after an operation is applied to field 'x', it needs to be renamed to field 'y'.
I have seen tons of documentation on how to do this using itextSharp. Unfortunately my firm cannot use them and so I am looking for a solution using PDF Sharp.
Any ideas?

This can give you an idea on how to perform the field renaming
var uniqueIndex = Guid.NewGuid();
var fields = pdfDocument.AcroForm.Fields;
var fieldNames = fields.Names;
for (int idx = 0; idx < fieldNames.Length; ++idx)
{
var fieldName = fieldNames[idx];
var field = fields[fieldName];
field.Elements.SetName($"/{fieldName}", $"{fieldName}_{uniqueIndex}");
}

I was able to rename form field via PdfSharp as follow:
public void RenameAcroField(PdfAcroField field, string newFieldName)
{
field.Elements.SetString("/T", newFieldName);
}
Little bit tricky but worked for my case. Hope it will help.

VB.NET version for PDFsharp 1.50.5147
Dim i = 0
While i < pdfDoc.AcroForm.Fields.Count
pdfDoc.AcroForm.Fields(i).Elements.SetString("/T", "formField" & i)
i += 1
End While

Related

EPPlus - How to set data type of a column to General

In my ASP.NET Core 1.1 app I'm using EPPlus.Core to export data to Excel. Some columns exported have mostly numbers but rarely a text (e.g. N/A). These columns in generated Excel are showing (as expected) a green triangle on the top left corner of their cells. I want to get rid of those warnings.
Question: What's a good way of getting rid of those triangles when Excel is generated? I tried setting the format of these columns to text as follows but it did not work. I guess we need to set the format of these columns to General but I can't figure out how:
workSheet.Cells["D1:P1"].Style.Numberformat.Format = "General";
UPDATE:
Per a user's request, the code looks similar to following.
Error at inner loop for (var j = 4; j < testlist[i].Count(); j++){...}: MyViewModel does not contain a definition of Count()
Error at line if (testlist[i][j] is string){...}: cannot apply indexing with [] to an extension of type MyViewModel
Controller:
....
....
var testlist = (qry to load a MyViewModel).ToList();
using (ExcelPackage pkg= new ExcelPackage())
{
var ws = excel.Workbook.Worksheets.Add("TestWorkSheet");
ws.Cells[1, 1].LoadFromCollection(rc_excel, true);
//I'm starting from 2nd row and 5th column
for (var i = 1; i < testlist.Count; i++)
{
for (var j = 4; j < testlist[i].Count(); j++)
{
if (testlist[i][j] is string)
{
....
....
}
}
pkg.Save();
return(....);
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How to modify footnote placeholder in docx4j

I have a docx file which contains a footnote. I have a placeholder in the footnote text that needs to be replaced. While extracting the nodes and modifying the textvalue that placeholder went unpassed. For some reason I think it is not picking up the text provided in the footnote.
Can u please guide me as to how u get to replace a placeholder in the footnote.
Approach 1
faster if you haven't yet caused unmarshalling to occur:
FootnotesPart fp = wordMLPackage.getMainDocumentPart().getFootnotesPart();
fp.variableReplace(mappings);
Approach 2
FootnotesPart fp = wordMLPackage.getMainDocumentPart().getFootnotesPart();
// unmarshallFromTemplate requires string input
String xml = XmlUtils.marshaltoString(fp.getJaxbElement(), true);
// Do it...
Object obj = XmlUtils.unmarshallFromTemplate(xml, mappings);
// Inject result into docx
fp.setJaxbElement((CTFootnotes) obj);
Since #JasonPlutext's answer did not work for my case I am posting what worked for me
FootnotesPart fp = template.getMainDocumentPart().getFootnotesPart();
List<Object> texts = fp.getJAXBNodesViaXPath("//w:t", true);
for(Object obj : texts) {
Text text = (Text) ((JAXBElement) obj).getValue();
String textValue = text.getValue();
// do variable replacement
text.setValue(textValue);
}
But still I face the issue when exporting this as pdf using Docx4J.toPDF(..);
The output does not pick up the footnote reference.

Sales Order Confirmation Report - SalesConfirmDP

I am modifying the SalesConfirmDP class and trying to add the CustVendExternalItem.ExternalItemTxt field into a new field I have created.
I have tried a couple of things but I do not think my syntax was correct i.e I declare the CustVendExternalItem table in the class declaration. But then when I try to insert CustVendExternalItem.ExternalItemTxt into my new field, it does not populate, I guess there must be a method which I need to include?
If anyone has any suggestion it would be highly appreciated.
Thank you in advance.
private void setSalesConfirmDetailsTmp(NoYes _confirmTransOrTaxTrans)
{
DocuRefSearch docuRefSearch;
// Body
salesConfirmTmp.JournalRecId = custConfirmJour.RecId;
if(_confirmTransOrTaxTrans == NoYes::Yes)
{
if (printLineHeader)
{
salesConfirmTmp.LineHeader = custConfirmTrans.LineHeader;
}
else
{
salesConfirmTmp.LineHeader = '';
}
salesConfirmTmp.ItemId = this.itemId();
salesConfirmTmp.Name = custConfirmTrans.Name;
salesConfirmTmp.Qty = custConfirmTrans.Qty;
salesConfirmTmp.SalesUnitTxt = custConfirmTrans.salesUnitTxt();
salesConfirmTmp.SalesPrice = custConfirmTrans.SalesPrice;
salesConfirmTmp.DlvDate = custConfirmTrans.DlvDate;
salesConfirmTmp.DiscPercent = custConfirmTrans.DiscPercent;
salesConfirmTmp.DiscAmount = custConfirmTrans.DiscAmount;
salesConfirmTmp.LineAmount = custConfirmTrans.LineAmount;
salesConfirmTmp.CurrencyCode = custConfirmJour.CurrencyCode;
salesConfirmTmp.PrintCode = custConfirmTrans.TaxWriteCode;
if (pdsCWEnabled)
{
salesConfirmTmp.PdsCWUnitId = custConfirmTrans.pdsCWUnitId();
salesConfirmTmp.PdsCWQty = custConfirmTrans.PdsCWQty;
}
**salesConfirmTmp.ExternalItemText = CustVendExternalItem.ExternalItemTxt;**
if ((custFormletterDocument.DocuOnConfirm == DocuOnFormular::Line)
|| (custFormletterDocument.DocuOnConfirm == DocuOnFormular::All))
{
docuRefSearch = DocuRefSearch::newTypeIdAndRestriction(custConfirmTrans,
custFormletterDocument.DocuTypeConfirm,
DocuRestriction::External);
salesConfirmTmp.Notes = Docu::concatDocuRefNotes(docuRefSearch);
}
salesConfirmTmp.InventDimPrint = this.printDimHistory();
Well, AX cannot guess which record you need, there is a helper class CustVendExternalItemDescription to deal with it:
boolean found;
str externalItemId;
...
[found, externalItemId, salesConfirmTmp.ExternalItemText] = CustVendExternalItemDescription::findExternalItemDescription(
ModuleCustVend::Cust,
custConfirmTrans.ItemId,
custConfirmTrans.inventDim(),
custConfirmJour.OrderAccount,
CustTable::find(custConfirmJour.OrderAccount).CustItemGroupId);
The findExternalItemDescription method returns more information than you need here, but you have to define variables to store it anyway.
Well, the steps to solve this problem are fairly easy and i will try to give you a step by step approach how to solve this problem.
1) Are you initialising CustVendExternalItem properly? Make a record of the same and initialise it as Jan has shown above, then debug your code and see if the value is being initialised in your DP class.
2)If your value is being initialised correctly, but it is not showing up in the report design there can be multiple issues such as:
Overlapping of text boxes.
Insufficient space for the given field
Some report parameter/property not being set correctly which causes
your value not to show up on the report.
Check these one by one and you should end up arriving towards a solution

Autofitting column in combination with setting numberformat will autofit using unformatted text as measurement

When I use EPPlus to autofit a column that is formatted as a date string, the autofit mechanism is using the unformatted string as measurement for how wide the column should become.
Is it a bug or did I do something wrong?
Code
sheet.Column(2).Style.Numberformat.Format = "yyyy-MM-dd hh:mm";
sheet.Cells.AutoFitColumns();
Result:
widening the second column in excel
Autofit using no formatting, notice that the second column is having the same width as the supposed-to-autofit column in the first picture.
For completion, here is the result when no autofit is used
It could be your font settings either in your code or globally in excel. Try running this test (I am posting this as an answer since I cannot fit it in a comment):
[TestMethod]
public void Auto_Col_Fomat_Test()
{
//Throw in some data
var datatable = new DataTable("tblData");
datatable.Columns.AddRange(new[]
{
new DataColumn("Col1", typeof (int)), new DataColumn("Col2", typeof (DateTime)), new DataColumn("Col3", typeof (object))
});
for (var i = 0; i < 10; i++)
{
var row = datatable.NewRow();
row[0] = i; row[1] = DateTime.Now.AddDays(i); row[2] = Path.GetRandomFileName();
datatable.Rows.Add(row);
}
//Create a test file
var fi = new FileInfo(#"c:\temp\Auto_Col_Fomat.xlsx");
if (fi.Exists)
fi.Delete();
using (var pck = new ExcelPackage(fi))
{
var workbook = pck.Workbook;
var sheet = workbook.Worksheets.Add("Sheet1");
sheet.Cells.LoadFromDataTable(datatable, true);
sheet.Column(2).Style.Numberformat.Format = "yyyy-MM-dd hh:mm";
sheet.Cells.AutoFitColumns();
pck.Save();
}
}
If this shows the same thing you may have changed your default excel font or zoom which means you may have to set the font in code to Body Font size 11 (at least that was 2013 uses). If it doesnt show post more of your code.
I had the same issue.
Here is my work around:
First call AutoFitColumns, then add some padding to the column that has a special format:
cells[sheet.Dimension.Address].AutoFitColumns();
sheet.Column(2).Width *= 1.25;

Issue with itextsharp

I have a PDF document that has several hundred fields. All of the field names have periods in them, such as "page1.line1.something"
I want to remove these periods and replace them with either an underscore or (better) nothing at all
There appears to be a bug in the itextsharp libraries where the renamefield method does not work if the field has a period, so the following does not work (always returns false)
Dim formfields As AcroFields = stamper.AcroFields
Dim renametest As Boolean
renametest = formfields.RenameField("page1.line1.something", "page1_line1_something")
If the field does not have a period in it, it works fine.
Has anyone come across this and is there a workaround?
Is this an AcroForm form or a LiveCycle Designer (xfa) form?
If it's XFA (which is likely given the field names), iText can't help you. It can only get/set field values when working with XFA.
Okay, an AcroForm. Rather than go the route used in your source, I suggest you directly manipulate the existing field dictionaries and the acroForm field list.
I'm a Java native when it comes to iText, so you'll have to do some translation, but here goes:
A) Delete the AcroForm's field array. Leave the calculation order alone if present (/CO). I think.
PdfDictionary acroDict = reader.getCatalog().getAsDictionary(PdfName.ACROFORM);
acroDict.remove(PdfName.FIELDS);
B) Attach all the 'top level' fields to a new FIELDS array.
PdfArray newFldArray = new PdfArray();
acroDict.put(newFldArray, PdfName.FIELDS);
// you could wipe this between pages to speed things up a bit
Set<PdfIndirectReference> radioFieldsAdded = new HashSet<PdfIndirectReference>();
int numPages = reader.getNumberOfPages();
for (int curPg = 1; curPg <= numPages; ++curPg) {
PdfDictionary curPageDict = reader.getPageN(curPg);
PdfArray annotArray = curPageDict.getAsArray(PdfName.ANNOTS);
if (annotArray == null)
continue;
for (int annotIdx = 0; annotIdx < annotArray.size(); ++annotIdx) {
PdfIndirectReference fieldReference = (PdfIndirectReference) annotArray.getAsIndirect(annotIdx);
PdfDictionary field = (PdfDictionary)PdfReader.getObject(fieldReference);
// if it's a radio button
if ((PdfFormField.FF_RADIO & field.getAsNumber(PdfName.FF).intValue()) != 0) {
fieldReference = field.get(pdfName.PARENT);
field = field.getAsDict(PdfName.PARENT); // looks up indirect reference for you.
// only add each radio field once.
if (radioFieldsAdded.contains(fieldReference)) {
continue;
} else {
radioFieldsAdded.add(fieldReference);
}
}
field.remove(PdfName.PARENT);
// you'll need to assemble the original field name manually and replace the bits
// you don't like. Parent.T + '.' child.T + '.' + ...
String newFieldName = SomeFunction(field);
field.put(PdfName.T, new PdfString( newFieldName ) );
// add the reference, not the dictionary
newFldArray.add(fieldReference)
}
}
C) Clean up
reader.removeUnusedObjects();
Disadvantage:
More Work.
Advantages:
Maintains all field types, attributes, appearances, and doesn't change the file as a whole all that much. Less CPU & memory.
Your existing code ignores field script, all the field flags (read only, hidden, required, multiline text, etc), lists/combos, radio buttons, and quite a few other odds and ends.
if you use periods in your field name, only the last part can be renamed, e.g. in page1.line1.something only "something" can be renamed. This is because the "page1" and "line1" are treated by adobe as parents to the "something" field
I needed to delete this hierarchy and replace it with a flattened structure
I did this by
creating a pdfdictionary object for each field
reading the annotations I needed for each field into an array
deleting the field hierarchy in my (pdfstamper) document
creating a new set of fields from my array data
I have created some sample code for this if you want to see how I did it.