C＃WebBrowser控件未显示自定义HTML

Question

I have a web browser control that for some reason isn't loading my HTML: 我有一个网络浏览器控件，由于某种原因无法加载我的HTML：

 string updatingChatHTML = ""
        + "<HTML>    "
        + "<head>"
        + "<style>"
        + "body {"
        + "  margin: 0px;"
        + "  padding: 0px;"
        + "  background: " + chatBackground + ";\n"
        + "  Font-Family: Arial;"
        + "  font-size: 11px; "
        + "  text-align: left;"
        + "}"
        + "</style>"
        + "</head>"
        + "<body>";
txtChat.DocumentText = updatingChatHTML + "</body></HTML>";

(txtChat is my WebBrowser Control). （txtChat是我的WebBrowser控件）。

The weird thing is, it was working before I changed something, but I can't figure out what I changed that caused it to stop working. 奇怪的是，在我更改某些东西之前它一直在工作，但是我无法弄清楚导致它停止工作的更改。

I have a breakpoint set to just after the last line above, and I can see that updatingChatHTML has the proper value it's meant to, but txtChat.DocumentText still has a value of <HTML></HTML>\\0 . 我在上面的最后一行之后设置了一个断点，并且可以看到updateChatHTML的含义正确，但是txtChat.DocumentText的值仍然为<HTML></HTML>\\0 。

I thought maybe it was an initialisation thing, so I added txtChat.Navigate("about:blank"); 我以为这可能是初始化的东西，所以我添加了txtChat.Navigate("about:blank"); prior to any assignment, but it still doesn't work. 在进行任何分配之前，但仍然无法正常工作。

This event actually gets fired quite often though, and the first time/two times, it doesn't work, but after the form is finished loading it seems to, but it's already the last thing to happen on my Form_Load. 实际上，此事件实际上经常被触发，并且第一次/两次都不会起作用，但是在表单加载完成后，它似乎可以启动，但这已经是我的Form_Load上发生的最后一件事。

Any suggestions? 有什么建议么？

Answer 1

Attempting to set the DocumentText property when 尝试在以下情况下设置DocumentText属性

no document is loaded 没有文件载入
or the browser control is not in a ready state (eg currently loading a document) 或浏览器控件未处于就绪状态（例如，当前正在加载文档）

will cause the property assignment to fail silently. 将导致属性分配静默失败。

After calling the Navigate function you should monitor the DocumentCompleted event for notification of when the navigation operation completes. 调用Navigate功能后，您应该监视DocumentCompleted事件，以获取有关导航操作何时完成的通知。

C＃WebBrowser控件未显示自定义HTML

问题描述

1 个解决方案

解决方案1
1 已采纳 2016-02-02 22:43:26

C＃WebBrowser控件未显示自定义HTML

问题描述

1 个解决方案

解决方案1 1 已采纳 2016-02-02 22:43:26

解决方案1
1 已采纳 2016-02-02 22:43:26