不同的方向在多页的PrintDocument（如何） [英] Different orientation in a Multiple page PrintDocument (How to)

问题描述

我有一个的PrintDocument 有好几页。 一个页面，该页面文件必须在风景的方向，而不是Portrail。

I have a PrintDocument that has several pages. One page in that document must be in a Landscape orientations instead of Portrail.

由于PrintPage事件是在该事件处理的非常开始时触发的每一页上的文档......我设置了 PrintPageEventArgs.PageSettings.Landscape 为true。

As the PrintPage event is triggered for each page on the document... at the very begining of that event handler I set the PrintPageEventArgs.PageSettings.Landscape to true.

这确实在该网页上没有作品...但我可以看到，景观设置为true和抽放考虑在接下来的页面。

That doesn't works on THAT page... but I can see that Landscape is set to true and taked into account in the NEXT page.

我认为不知何故......之后该事件被触发了某个页面，你无法更改页面方向。这是比较少的逻辑，如果你认为它......但我如何可以设置事件触发之前，该标志在一个多页的PrintDocument？

I assume that somehow... after the event is triggered for a certain page you are not able to change the page orientation. That is more of less logic if you think it... but HOW COULD I SET THAT FLAG before EVENT fires in a multiple page PrintDocument?

注：我不知道提前做，如果下一个页面将实际需要横向方向

Note: I don't know in advance if the "next" page will going to actually need a Landscape orientation.

推荐答案

我在.NET中没有专家在印刷;然而，使用反射;它看起来像你可能要处理的<一个href="http://msdn.microsoft.com/en-us/library/system.drawing.printing.printdocument.querypagesettings.aspx">QueryPageSettings活动上的PrintDocument。它看起来像PrintController的私人PrintLoop（）方法，将在此为了使每个页面调用的事件：

I'm no expert at printing in .NET; however using Reflector; it looks like you might want to handle the QueryPageSettings event on PrintDocument. It looks like PrintController's private PrintLoop() method, will invoke events in this order for each page:

1. QueryPageSettings
2. 的起始页
3. 的PrintPage
4. 尾页

希望这有助于。

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