如何打印可滚动的用户控件表单 [英] How to print scrollable user control form

问题描述

我有一个用户控制页面，我有一些图表和标签。我想要打印整个可滚动页面。



我尝试过：



我用过：

I have one user control page and i have some charts and labels on it. I want to print the whole scrollable page.

What I have tried:

I used :

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

       PrintForm1.Print(Me, PowerPacks.Printing.PrintForm.PrintOption.Scrollable)
   End Sub

但我收到的错误为

类型'userctrl'的值无法转换为'System.Windows.Forms.Form'。

but i got the error as
"value of type 'userctrl' cannot be converted to 'System.Windows.Forms.Form'".

推荐答案

使用PrintDocument： PrintDocument Class（System.Drawing.Printing） [ ^ ] - 它可以让您准确指定打印的内容和位置。使用PrintForm并不是那么简单，但这就是重点：PrintForm只打印当时用户可见的内容 - 您需要打印不可见的内容。该链接包含一个基本示例，但这里有一个更复杂的链接：将参数传递给PrintDocument.PrintPage事件 [ ^ ]代码在C＃中，但它非常简单，如果你无法应对，在线转换器应该很好地解决它。

Use a PrintDocument: PrintDocument Class (System.Drawing.Printing)[^] - it lets you specifiy exactly what is printed, and where. It's not as trivial to use as PrintForm, but that's the whole point: PrintForm only prints what it visible to the user at that moment - you need to print the stuff that isn't visible as well. The link includes a basic example, but there is a more complex one here: Passing Parameters to a PrintDocument.PrintPage Event[^] The code is in C# but it's pretty simple, and online converters should tanslate it pretty well if you can't cope.

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