TextRange.Save メソッド

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)

パラメーター

例外

例

Save メソッドの使用例を次に示します。

// 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

注釈

このメソッドが戻ると、 stream は開いたままになり、 stream 内の現在の位置は未定義になります。

保存操作の一環として、現在の選択範囲のコンテンツを、 dataFormatで指定されたデータ形式に変換できます。

こちらもご覧ください

• 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)

パラメーター

例外

注釈

preserveTextElementsがfalseされると、カスタム TextElement オブジェクトは既知のTextElement型として保存されます。 たとえば、TextElementから継承する Heading1 というカスタム Paragraphを作成するとします。 preserveTextElementsを false に設定してこのメソッドを呼び出すと、Heading1が保存されるときにParagraphがTextRangeに変換されます。 preserveTextElementsを true に設定してこのメソッドを呼び出すと、Heading1は変換されずに保存されます。 カスタム テキスト要素を保持するには、 dataFormat を DataFormats.Xaml に設定する必要があります。

Save(Stream, String, Boolean) は、.NET Framework バージョン 3.5 で導入されています。 詳細については、「 バージョンと依存関係」を参照してください。