设置 Wpf DocumentViewer PrintDialog 的页面方向

发布于 2024-07-24 22:48:00 字数 115 浏览 7 评论 0原文

使用 Wpf DocumentViewer 控件,我无法弄清楚如何在用户单击打印按钮时在 DocumentViewer 显示的 PrintDialog 上设置 PageOrientation。 有办法连接到这个吗?

Using the Wpf DocumentViewer control I can't figure out how to set the PageOrientation on the PrintDialog that the DocumentViewer displays when the user clicks the print button. Is there a way to hook into this?

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评论(2

你丑哭了我 2024-07-31 22:48:00

迈克的答案有效。 我选择实现它的方式是创建我自己的从 DocumentViewer 派生的文档查看器。 另外,将 Document 属性转换为 FixedDocument 对我来说不起作用 - 转换为 FixDocumentSequence 却有效。

GetDesiredPageOrientation 是您需要的任何内容。 就我而言,我正在检查第一页的尺寸,因为我生成的文档对于文档中的所有页面具有统一的尺寸和方向,并且序列中只有一个文档。

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Controls;
using System.Windows.Xps;
using System.Printing;
using System.Windows.Documents;

public class MyDocumentViewer : DocumentViewer
{
    protected override void OnPrintCommand()
    {
        // get a print dialog, defaulted to default printer and default printer's preferences.
        PrintDialog printDialog = new PrintDialog();
        printDialog.PrintQueue = LocalPrintServer.GetDefaultPrintQueue();
        printDialog.PrintTicket = printDialog.PrintQueue.DefaultPrintTicket;

        // get a reference to the FixedDocumentSequence for the viewer.
        FixedDocumentSequence docSeq = this.Document as FixedDocumentSequence;

        // set the default page orientation based on the desired output.
        printDialog.PrintTicket.PageOrientation = GetDesiredPageOrientation(docSeq);

        if (printDialog.ShowDialog() == true)
        {
            // set the print ticket for the document sequence and write it to the printer.
            docSeq.PrintTicket = printDialog.PrintTicket;

            XpsDocumentWriter writer = PrintQueue.CreateXpsDocumentWriter(printDialog.PrintQueue);
            writer.WriteAsync(docSeq, printDialog.PrintTicket);
        }
    }
}

Mike's answer works. The way I chose to implement it was to instead create my own doc viewer derived from DocumentViewer. Also, casting the Document property to FixedDocument wasn't working for me - casting to FixedDocumentSequence was.

GetDesiredPageOrientation is whatever you need it to be. In my case, I'm inspecting the first page's dimensions, because I generate documents that are uniform size and orientation for all pages in the document, and with only one doc in the sequence.

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Controls;
using System.Windows.Xps;
using System.Printing;
using System.Windows.Documents;

public class MyDocumentViewer : DocumentViewer
{
    protected override void OnPrintCommand()
    {
        // get a print dialog, defaulted to default printer and default printer's preferences.
        PrintDialog printDialog = new PrintDialog();
        printDialog.PrintQueue = LocalPrintServer.GetDefaultPrintQueue();
        printDialog.PrintTicket = printDialog.PrintQueue.DefaultPrintTicket;

        // get a reference to the FixedDocumentSequence for the viewer.
        FixedDocumentSequence docSeq = this.Document as FixedDocumentSequence;

        // set the default page orientation based on the desired output.
        printDialog.PrintTicket.PageOrientation = GetDesiredPageOrientation(docSeq);

        if (printDialog.ShowDialog() == true)
        {
            // set the print ticket for the document sequence and write it to the printer.
            docSeq.PrintTicket = printDialog.PrintTicket;

            XpsDocumentWriter writer = PrintQueue.CreateXpsDocumentWriter(printDialog.PrintQueue);
            writer.WriteAsync(docSeq, printDialog.PrintTicket);
        }
    }
}
岁月如刀 2024-07-31 22:48:00

我用来设置 DocumentViewer 打印对话框方向的解决方法是通过从模板中省略按钮来隐藏 DocumentViewer 控件上的打印按钮。 然后我提供了自己的打印按钮并将其绑定到以下代码:

public bool Print()
    {
        PrintDialog dialog = new PrintDialog();
        dialog.PrintQueue = LocalPrintServer.GetDefaultPrintQueue();
        dialog.PrintTicket = dialog.PrintQueue.DefaultPrintTicket;
        dialog.PrintTicket.PageOrientation = PageOrientation.Landscape;

        if (dialog.ShowDialog() == true)
        {
            XpsDocumentWriter writer = PrintQueue.CreateXpsDocumentWriter(dialog.PrintQueue);
            writer.WriteAsync(_DocumentViewer.Document as FixedDocument, dialog.PrintTicket);
            return true;
        }

        return false;
    }

The workaround I used to set the orientation on my DocumentViewer's print dialog was to hide the print button on the DocumentViewer control by omitting the button from the template. I then provided my own print button and tied it to the following code:

public bool Print()
    {
        PrintDialog dialog = new PrintDialog();
        dialog.PrintQueue = LocalPrintServer.GetDefaultPrintQueue();
        dialog.PrintTicket = dialog.PrintQueue.DefaultPrintTicket;
        dialog.PrintTicket.PageOrientation = PageOrientation.Landscape;

        if (dialog.ShowDialog() == true)
        {
            XpsDocumentWriter writer = PrintQueue.CreateXpsDocumentWriter(dialog.PrintQueue);
            writer.WriteAsync(_DocumentViewer.Document as FixedDocument, dialog.PrintTicket);
            return true;
        }

        return false;
    }
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