IXpsFixedDocumentReader Interfaccia

Definizione

Spazio dei nomi:

System.Windows.Xps.Packaging

Assembly:

ReachFramework.dll

Definisce i metodi per la lettura delle parti di un FixedDocument e anche per tipi limitati di scrittura del documento.

public interface class IXpsFixedDocumentReader : System::Windows::Xps::Packaging::IDocumentStructureProvider

public interface IXpsFixedDocumentReader : System.Windows.Xps.Packaging.IDocumentStructureProvider

type IXpsFixedDocumentReader = interface
    interface IDocumentStructureProvider

Public Interface IXpsFixedDocumentReader
Implements IDocumentStructureProvider

Implementazioni

IDocumentStructureProvider

Esempio

Nell'esempio seguente viene illustrato come ottenere un riferimento a un oggetto che implementa questa interfaccia.

private void SignatureDefinitionCommandHandler(object sender, RoutedEventArgs e)
{
    SignatureDefinition sigDefDialog = new SignatureDefinition();
    if (sigDefDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
    {
        XpsSignatureDefinition signatureDefinition = new XpsSignatureDefinition();
        signatureDefinition.RequestedSigner = sigDefDialog.RequestedSigner.Text;
        signatureDefinition.Intent = sigDefDialog.Intent.Text;
        signatureDefinition.SigningLocale = sigDefDialog.SigningLocale.Text;
        try
        {
            signatureDefinition.SignBy = DateTime.Parse(sigDefDialog.SignBy.Text);
        }
        catch (FormatException)
        {
        }
        signatureDefinition.SpotId = Guid.NewGuid();
        IXpsFixedDocumentSequenceReader docSeq = _xpsDocument.FixedDocumentSequenceReader; //_xpsDocument is type System.Windows.Xps.Packaging.XpsDocument
        IXpsFixedDocumentReader doc = docSeq.FixedDocuments[0];
        doc.AddSignatureDefinition(signatureDefinition);
        doc.CommitSignatureDefinition();
        InitializeSignatureDisplay();
    }
}

Private Sub SignatureDefinitionCommandHandler(sender As Object, e As RoutedEventArgs)
    Using sigDefDialog As New SignatureDefinition()
        If sigDefDialog.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
            Dim signatureDefinition As New XpsSignatureDefinition With {
                .RequestedSigner = sigDefDialog.RequestedSigner.Text,
                .Intent = sigDefDialog.Intent.Text,
                .SigningLocale = sigDefDialog.SigningLocale.Text
            }
            Try
                signatureDefinition.SignBy = Date.Parse(sigDefDialog.SignBy.Text)
            Catch e1 As FormatException
            End Try
            signatureDefinition.SpotId = Guid.NewGuid()
            Dim docSeq As IXpsFixedDocumentSequenceReader = _xpsDocument.FixedDocumentSequenceReader '_xpsDocument is type System.Windows.Xps.Packaging.XpsDocument
            Dim doc As IXpsFixedDocumentReader = docSeq.FixedDocuments(0)
            doc.AddSignatureDefinition(signatureDefinition)
            doc.CommitSignatureDefinition()
            InitializeSignatureDisplay()
        End If
    End Using
End Sub

Nell'esempio seguente viene illustrato come usare un IXpsFixedDocumentReader oggetto per ottenere una IXpsFixedDocumentReader raccolta per accedere a ogni pagina in un oggetto FixedDocument.

ShowStatus("   Getting FixedDocumentSequenceReader.");
IXpsFixedDocumentSequenceReader fixedDocSeqReader =
    xpsDocument.FixedDocumentSequenceReader;

ShowStatus("   Getting FixedDocumentReaders.");
ICollection<IXpsFixedDocumentReader> fixedDocuments =
    fixedDocSeqReader.FixedDocuments;

ShowStatus("   Getting FixedPageReaders.");
IEnumerator<IXpsFixedDocumentReader> enumerator =
    fixedDocuments.GetEnumerator();
enumerator.MoveNext();
ICollection<IXpsFixedPageReader> fixedPages =
    enumerator.Current.FixedPages;

// Add a document structure to each fixed page.
int i = 0;
foreach (IXpsFixedPageReader fixedPageReader in fixedPages)
{
    XpsResource pageStructure;
    ShowStatus("   Adding page structure resource:\n       '" +
                       Filename(_fixedPageStructures[i]) + "'");
    try
    {   // Add a new StoryFragment to hold the page structure.
        pageStructure = fixedPageReader.AddStoryFragment();
    }
    catch (System.InvalidOperationException)
    {
        MessageBox.Show(xpsUnstructuredFile +
            "\n\nDocument structure cannot be added.\n\n" +
            Filename(xpsUnstructuredFile) + " might already " +
            "contain an existing document structure.",
            "Cannot Add Document Structure",
            MessageBoxButton.OK, MessageBoxImage.Error);
        break;
    }

    // Copy the page structure to the new StoryFragment.
    WriteResource(pageStructure, _fixedPageStructures[i++]);
}

ShowStatus("   Saving and closing the new document.\n");
xpsDocument.Close();

ShowStatus("   Getting FixedDocumentSequenceReader.")
Dim fixedDocSeqReader As IXpsFixedDocumentSequenceReader = xpsDocument.FixedDocumentSequenceReader

ShowStatus("   Getting FixedDocumentReaders.")
Dim fixedDocuments As ICollection(Of IXpsFixedDocumentReader) = fixedDocSeqReader.FixedDocuments

ShowStatus("   Getting FixedPageReaders.")
Dim enumerator As IEnumerator(Of IXpsFixedDocumentReader) = fixedDocuments.GetEnumerator()
enumerator.MoveNext()
Dim fixedPages As ICollection(Of IXpsFixedPageReader) = enumerator.Current.FixedPages


' Add a document structure to each fixed page.
Dim i As Integer = 0
For Each fixedPageReader As IXpsFixedPageReader In fixedPages
    Dim pageStructure As XpsResource
    ShowStatus("   Adding page structure resource:" & vbLf & "       '" & Filename(_fixedPageStructures(i)) & "'")
    Try
        pageStructure = fixedPageReader.AddStoryFragment()
    Catch e2 As InvalidOperationException
        System.Windows.MessageBox.Show(xpsUnstructuredFile & vbLf & vbLf & "Document structure cannot be added." & vbLf & vbLf & Filename(xpsUnstructuredFile) & " might already " & "contain an existing document structure.",
                        "Cannot Add Document Structure",
                        MessageBoxButton.OK,
                        MessageBoxImage.Error)
        Exit For
    End Try

    ' Copy the page structure to the new StoryFragment.
    WriteResource(pageStructure, _fixedPageStructures(i))
    i += 1
Next fixedPageReader

ShowStatus("   Saving and closing the new document." & vbLf)
xpsDocument.Close()

Proprietà

DocumentNumber	Ottiene la posizione in base zero del documento nell'oggetto FixedDocumentSequence desiderato.
DocumentStructure	Ottiene la parte DocumentStructure di FixedDocument, se esiste.
FixedPages	Ottiene un insieme di lettori FixedPage, un lettore per ogni pagina in FixedDocument.
PrintTicket	Ottiene un oggetto PrintTicket, se esiste, associato a FixedDocument.
SignatureDefinitions	Ottiene un insieme di tutte le definizioni della firma associate a FixedDocument.
Thumbnail	Ottiene l'immagine di anteprima, se esiste un'anteprima, associata a FixedDocument.
Uri	Ottiene l'URI (Uniform Resource Identifier) di FixedDocument.

Metodi

AddDocumentStructure()	Aggiunge la DocumentStructure parte di XML Paper Specification (XPS) a un pacchetto XPS. (Ereditato da IDocumentStructureProvider)
AddSignatureDefinition(XpsSignatureDefinition)	Aggiunge l'oggetto XpsSignatureDefinition specificato alla raccolta FixedDocument.
CommitSignatureDefinition()	Svuota l'oggetto Stream del package ed esegue inoltre il commit di un XpsSignatureDefinition al pacchetto.
GetFixedPage(Uri)	Ottiene un lettore per l'oggetto FixedPage con l'URI (Uniform Resource Identifier) specificato.
RemoveSignatureDefinition(XpsSignatureDefinition)	Rimuove l'oggetto XpsSignatureDefinition specificato dall'oggetto FixedDocument.