Question

我需要从我们的应用程序中的URL生成pdf报告。是否可以在生成的同一pdf文档中同时包含“横向”页面和“纵向”页面？

我想将条形图设置为“纵向”，将“表”设置为“横向”（水平）。查看EVO文档，我不知道是否可行。

我知道您可以使用定义风景或肖像

htmlToPdfConverter.PdfDocumentOptions.PdfPageOrientation

但这适用于整个文档。我想要一些可能定义html的文件，该文件将告诉EVO将本节打印为风景。

Answer 1

您可以在同一PDF中包含“纵向”和“横向”部分。为此，您可以创建一个空白的Document对象，并向该文档添加具有所需方向的PDF页面。在新创建的PDF页面上，您可以添加HtmlToPdfElement对象以呈现HTML，并自动以与最初创建的PDF页面相同的方向添加PDF页面。可以使用不同方向的PDF页面重复该过程。 Merge Multiple HTML Pages into a Single PDF演示中有一个使用C＃代码的实时示例，介绍了这种方法。代码示例也复制到下面：

protected void convertToPdfButton_Click(object sender, EventArgs e)
{
    // Create the PDF document where to add the HTML documents
    Document pdfDocument = new Document();

    // Create a PDF page where to add the first HTML
    PdfPage firstPdfPage = pdfDocument.AddPage();

    try
    {
        // Create the first HTML to PDF element
        HtmlToPdfElement firstHtml = new HtmlToPdfElement(0, 0, firstUrlTextBox.Text);

        // Optionally set a delay before conversion to allow asynchonous scripts to finish
        firstHtml.ConversionDelay = 2;

        // Add the first HTML to PDF document
        AddElementResult firstAddResult = firstPdfPage.AddElement(firstHtml);

        PdfPage secondPdfPage = null;
        PointF secondHtmlLocation = Point.Empty;

        if (startNewPageCheckBox.Checked)
        {
            // Create a PDF page where to add the second HTML
            secondPdfPage = pdfDocument.AddPage();
            secondHtmlLocation = PointF.Empty;
        }
        else
        {
            // Add the second HTML on the PDF page where the first HTML ended
            secondPdfPage = firstAddResult.EndPdfPage;
            secondHtmlLocation = new PointF(firstAddResult.EndPageBounds.Left, firstAddResult.EndPageBounds.Bottom);
        }

        // Create the second HTML to PDF element
        HtmlToPdfElement secondHtml = new HtmlToPdfElement(secondHtmlLocation.X, secondHtmlLocation.Y, secondUrlTextBox.Text);

        // Optionally set a delay before conversion to allow asynchonous scripts to finish
        secondHtml.ConversionDelay = 2;

        // Add the second HTML to PDF document
        secondPdfPage.AddElement(secondHtml);

        // Save the PDF document in a memory buffer
        byte[] outPdfBuffer = pdfDocument.Save();

        // Send the PDF as response to browser

        // Set response content type
        Response.AddHeader("Content-Type", "application/pdf");

        // Instruct the browser to open the PDF file as an attachment or inline
        Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Merge_Multipe_HTML.pdf; size={0}", outPdfBuffer.Length.ToString()));

        // Write the PDF document buffer to HTTP response
        Response.BinaryWrite(outPdfBuffer);

        // End the HTTP response and stop the current page processing
        Response.End();
    }
    finally
    {
        // Close the PDF document
        pdfDocument.Close();
    }
}

同一张pdf中的风景和肖像

1 个答案: