如何清除 WPF 中的 WebBrowser 控件
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How to clear WebBrowser control in WPF
提问by mikelt21
I'm using the code from the following link: Displaying html from string in WPF WebBrowser control
我正在使用以下链接中的代码：Displaying html from string in WPF WebBrowser control
It works well except when I delete the item containing the html, e.NewValuebecomes nulland I get an exception. Is there a way to return the WebBrowser control to a blank screen?
它运行良好，除非当我删除包含 html 的项目时，e.NewValue变成null并且出现异常。有没有办法将 WebBrowser 控件返回到空白屏幕？
回答by mikelt21
I found this. Anyone have anything better?
我找到了这个。有人有更好的吗？
if (wb != null)
{
if (e.NewValue != null)
wb.NavigateToString(e.NewValue as string);
else
wb.Navigate("about:blank");
}
EDIT:
编辑：
As poby mentioned in the comments, for .NET 4+ use:
正如评论中提到的 poby，对于 .NET 4+ 使用：
if (wb != null)
{
if (e.NewValue != null)
wb.NavigateToString(e.NewValue as string);
else
wb.Navigate((Uri)null);
}
回答by ulatekh
I just set the WebBrowserLabel's DocumentTextto string.Empty.
我只是将 WebBrowserLabel 的DocumentText设置为string.Empty。
