Declaration

TPdfFormFieldList = class;

Description

Provides access to the form fields of a PDF page.

Methods and Properties

Demo

Demos\PDF\PDFFormFields\PdfViewerFF.dpr

Examples

// Output all field values to a memo
Memo1.Clear();
Memo1.Lines.Add( Format( 'Form Fields: %d', [ ImageEnView1.PdfViewer.FormFields.Count ]));
for i := 0 to ImageEnView1.PdfViewer.FormFields.Count -1 do
  Memo1.Lines.Add( Format( '%s (%s): %s', [ ImageEnView1.PdfViewer.FormFields[i].Name,  PdfFormFieldTypeToStr( ImageEnView1.PdfViewer.FormFields[i].FieldType ), ImageEnView1.PdfViewer.FormFields[i].Value ]));

// Clear all form field values
for i := 0 to ImageEnView1.PdfViewer.FormFields.Count -1 do
  case ImageEnView1.PdfViewer.FormFields[i].FieldType of
    fftCheckBox      : ImageEnView1.PdfViewer.FormFields[i].Checked := False;
    fftTextField     : ImageEnView1.PdfViewer.FormFields[i].Value := '';
    else
      // Default handling
                       ImageEnView1.PdfViewer.FormFields[i].Value := '';
  end;
ImageEnView1.Update();

// Set all text and checkbox values
for i := 0 to ImageEnView1.PdfViewer.FormFields.Count -1 do
  case ImageEnView1.PdfViewer.FormFields[i].FieldType of
    fftTextField     : ImageEnView1.PdfViewer.FormFields[i].Value := 'ImageEn';
    fftCheckBox      : ImageEnView1.PdfViewer.FormFields[i].Checked := TRUE;
  end;
ImageEnView1.Update();

// Toggle all checkboxes in the current page
for i := 0 to ImageEnView1.PdfViewer.FormFields.Count -1 do
  if ImageEnView1.PdfViewer.FormFields[i].FieldType = fftCheckBox then
    ImageEnView1.PdfViewer.FormFields[i].Checked := NOT ImageEnView1.PdfViewer.FormFields[i].Checked;
ImageEnView1.Update();

// Delete the first form field from the page
ImageEnView1.PdfViewer.FormFields.Remove( 0 );
ImageEnView1.PdfViewer.ReloadPage();

// Remove the highlighted form field from the PDF page
ImageEnView1.PdfViewer.FormFields.Remove( ImageEnView1.PdfViewer.FormFields.HighlightedIndex );
ImageEnView1.PdfViewer.ReloadPage();

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