在 webbrowser c# 控件中停止警报 javascript 弹出窗口
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/3848632/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Stop alert javascript popup in webbrowser c# control
提问by robert
This website : http://blog.joins.com/media/folderListSlide.asp?uid=ddatk&folder=3&list_id=9960150
本网站：http: //blog.joins.com/media/folderListSlide.asp?uid=ddatk&folder=3&list_id=9960150
has this code:
有这个代码：
<script>alert('??1ù?￥ ?ü??àì ??′?′?′ù.');</script>
So my web browser control show a popup, how can I bypass the popup without using sendkeys enter??
所以我的网络浏览器控件显示一个弹出窗口，如何在不使用发送键输入的情况下绕过弹出窗口？
回答by luvieere
In the ProgressChangedevent handler, you insert a script element that replaces the Javascript alertfunction with a function of your own, that does nothing:
在ProgressChanged事件处理程序中，您插入一个脚本元素，用alert您自己的函数替换 Javascript函数，它什么都不做：
private void webBrowser1_ProgressChanged(object sender, WebBrowserProgressChangedEventArgs e)
{
if (webBrowser1.ReadyState == WebBrowserReadyState.Complete)
{
HtmlElement head = webBrowser1.Document.GetElementsByTagName("head")[0];
HtmlElement scriptEl = webBrowser1.Document.CreateElement("script");
IHTMLScriptElement element = (IHTMLScriptElement)scriptEl.DomElement;
string alertBlocker = "window.alert = function () { }";
element.text = alertBlocker;
head.AppendChild(scriptEl);
}
}
For this to work, you need to add a reference to Microsoft.mshtmland use mshtml;in your form.
为此，您需要在表单中添加对Microsoft.mshtml和的引用use mshtml;。
回答by Andrew
If you intend not to ever use the alert()function on your page, you can also just override it. E.g.:
如果您不打算alert()在您的页面上使用该功能，您也可以覆盖它。例如：
<script type="text/javascript">
alert = function(){}
</script>
If you do need to use JavaScript's alert function, you can 'overload' it:
如果您确实需要使用 JavaScript 的警报功能，您可以“重载”它：
<script type="text/javascript">
var fnAlert = alert;
alert = function(message,doshow) {
if (doshow === true) {
fnAlert(message);
}
}
alert("You won't see this");
alert("You will see this",true);
</script>
回答by u109919
handle IDocHostShowUI::ShowMessage and return S_OK. Check http://www.codeproject.com/KB/miscctrl/csEXWB.aspxfor an example.
处理 IDocHostShowUI::ShowMessage 并返回 S_OK。以http://www.codeproject.com/KB/miscctrl/csEXWB.aspx为例。
回答by abobjects.com
solution given is wrong
给出的解决方案是错误的
private void webBrowser1_ProgressChanged(object sender, WebBrowserProgressChangedEventArgs e)
{
if (webBrowser1.ReadyState == WebBrowserReadyState.Complete)
{
HtmlElement head = webBrowser1.Document.GetElementsByTagName("head")[0];
HtmlElement scriptEl = webBrowser1.Document.CreateElement("script");
IHTMLScriptElement element = (IHTMLScriptElement)scriptEl.DomElement;
string alertBlocker = "window.alert = function () { }";
element.text = alertBlocker;
head.AppendChild(scriptEl);
}
}
Seems handling a windows hook for message is solution
似乎处理消息的 Windows 挂钩是解决方案
回答by Cheng Chen
I think you are navigating a page within alert(xxx)in its javascript using WebBroswerin a WinForm application? You can try:
我认为您正在alert(xxx)使用WebBroswerWinForm 应用程序在其 javascript中导航页面？你可以试试：
broswer.Navigated += (sender, args) =>
{
var document = (sender as WebBrowser).DocumentText;
//find the alert scripts and remove/replace them
}
回答by BlueRaja - Danny Pflughoeft
You can disable all popups by setting
您可以通过设置禁用所有弹出窗口
webBrowser.ScriptErrorsSuppressed = true;
Despite the name, this settings actually blocks allpopups, including alert()
尽管名称如此，但此设置实际上会阻止所有弹出窗口，包括alert()
