TextRange.Save Méthode

public:
 void Save(System::IO::Stream ^ stream, System::String ^ dataFormat);

public void Save (System.IO.Stream stream, string dataFormat);

member this.Save : System.IO.Stream * string -> unit

Public Sub Save (stream As Stream, dataFormat As String)

Paramètres

Exceptions

Exemples

L’exemple suivant illustre l’utilisation de la méthode Save.

// This method accepts an input stream and a corresponding data format.  The method
// will attempt to load the input stream into a TextRange selection, apply Bold formatting
// to the selection, save the reformatted selection to an alternat stream, and return 
// the reformatted stream.  
Stream BoldFormatStream(Stream inputStream, string dataFormat)
{
    // A text container to read the stream into.
    FlowDocument workDoc = new FlowDocument();
    TextRange selection = new TextRange(workDoc.ContentStart, workDoc.ContentEnd);
    Stream outputStream = new MemoryStream();

    try
    {
        // Check for a valid data format, and then attempt to load the input stream
        // into the current selection.  Note that CanLoad ONLY checks whether dataFormat
        // is a currently supported data format for loading a TextRange.  It does not 
        // verify that the stream actually contains the specified format.  An exception 
        // may be raised when there is a mismatch between the specified data format and 
        // the data in the stream. 
        if (selection.CanLoad(dataFormat))
            selection.Load(inputStream, dataFormat);
    }
    catch (Exception e) { return outputStream; /* Load failure; return a null stream. */ }

    // Apply Bold formatting to the selection, if it is not empty.
    if (!selection.IsEmpty)
        selection.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Bold);

    // Save the formatted selection to a stream, and return the stream.
    if (selection.CanSave(dataFormat))
        selection.Save(outputStream, dataFormat);

    return outputStream;
}

' This method accepts an input stream and a corresponding data format.  The method
' will attempt to load the input stream into a TextRange selection, apply Bold formatting
' to the selection, save the reformatted selection to an alternat stream, and return 
' the reformatted stream.  
Private Function BoldFormatStream(ByVal inputStream As Stream, ByVal dataFormat As String) As Stream
    ' A text container to read the stream into.
    Dim workDoc As New FlowDocument()
    Dim selection As New TextRange(workDoc.ContentStart, workDoc.ContentEnd)
    Dim outputStream As Stream = New MemoryStream()

    Try
        ' Check for a valid data format, and then attempt to load the input stream
        ' into the current selection.  Note that CanLoad ONLY checks whether dataFormat
        ' is a currently supported data format for loading a TextRange.  It does not 
        ' verify that the stream actually contains the specified format.  An exception 
        ' may be raised when there is a mismatch between the specified data format and 
        ' the data in the stream. 
        If selection.CanLoad(dataFormat) Then
            selection.Load(inputStream, dataFormat)
        End If
    Catch e As Exception ' Load failure return a null stream. 
        Return outputStream
    End Try

    ' Apply Bold formatting to the selection, if it is not empty.
    If Not selection.IsEmpty Then
        selection.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Bold)
    End If

    ' Save the formatted selection to a stream, and return the stream.
    If selection.CanSave(dataFormat) Then
        selection.Save(outputStream, dataFormat)
    End If

    Return outputStream
End Function

Remarques

Lorsque cette méthode est retournée, stream est laissé ouvert et la position actuelle dans stream n’est pas définie.

Dans le cadre de l’opération d’enregistrement, le contenu de la sélection actuelle peut être converti au format de données spécifié par dataFormat.

Voir aussi

• CanSave(String)
• Load(Stream, String)
• CanLoad(String)

public:
 void Save(System::IO::Stream ^ stream, System::String ^ dataFormat, bool preserveTextElements);

public void Save (System.IO.Stream stream, string dataFormat, bool preserveTextElements);

member this.Save : System.IO.Stream * string * bool -> unit

Public Sub Save (stream As Stream, dataFormat As String, preserveTextElements As Boolean)

Paramètres

Exceptions

Remarques

Lorsque preserveTextElements est false, les objets de TextElement personnalisés sont enregistrés sous la forme de types TextElement connus. Par exemple, supposons que vous créez un TextElement personnalisé appelé Heading1, qui hérite de Paragraph. Lorsque vous appelez cette méthode avec preserveTextElements défini sur false, Heading1 est convertie en Paragraph lorsque le TextRange est enregistré. Lorsque vous appelez cette méthode avec preserveTextElements défini sur true, Heading1 est enregistré sans être converti. Pour conserver les éléments de texte personnalisés, dataFormat doit être défini sur DataFormats.Xaml.

Save(Stream, String, Boolean) est introduit dans .NET Framework version 3.5. Pour plus d’informations, consultez versions et dépendances.