Web浏览器控件不会在类库中打印内容 [英] Web Browser Control will not print contents in a class library

问题描述

我有一个类库，在这个类库中我创建了一个Web浏览器控件，向其添加html然后调用print函数。



这不是'似乎打印任何东西，我想知道是否有人可以帮助我？

这样做作为一个Windows应用程序似乎工作正常但是只要我将它转换为类库它似乎不喜欢它。

我听说（因为我正在寻找答案），在类库中你不能从Web浏览器控件打印。



如果是这样的话我怎样才能完成（另一种方式）打印html页面的相同任务？



这是我的代码：

 私人 功能 StartPrint（ ByVal  htmlstring  As   String ）作为 整数 
 尝试 
  Dim  objbrowser  As   New  WebBrowser 
 objbrowser.DocumentText = htmlstring 
 objbrowser.Print（）
 objbrowser.Dispose（）
 返回  0  
  Catch  ex  As 除外ion 
 返回 -1 
 结束 尝试 
 结束 功能 
 

谢谢。

解决方案

WebBrowser控件必须放在表单上才能工作

I have a class library and in this class library I create a web browser control, add html to it and then call the print function.

This doesn't seem to print anything and I wonder if someone could help me?
Doing this as a windows application seems to work fine however as soon as I convert it to a class library it doesn't seem to like it.
I heard (as I was searching for an answer) that in a class library you cannot print from a web browser control.

If this is the case how could I accomplish (an alternative way) the same task of printing an html page?

Here is my code:

Private Function StartPrint(ByVal htmlstring As String) As Integer
     Try
         Dim objbrowser As New WebBrowser
         objbrowser.DocumentText = htmlstring
         objbrowser.Print()
         objbrowser.Dispose()
         Return 0
     Catch ex As Exception
         Return -1
     End Try
 End Function

Thank-you.

解决方案

The WebBrowser control MUST be put on a form in order to work.

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