C# 禁用上下文菜单webbrowser控件
我正在使用WPF WebBrowser控件显示PDF。我想禁用关联菜单 我已经尝试过以下方法:C# 禁用上下文菜单webbrowser控件,c#,wpf,C#,Wpf,我正在使用WPF WebBrowser控件显示PDF。我想禁用关联菜单 我已经尝试过以下方法: webBrowser.LoadCompleted +=new LoadCompletedEventHandler(webBrowser_LoadCompleted); // Event Handler public void webBrowser_LoadCompleted(object sender, NavigationEventArgs e ) { webBrowser.Context
webBrowser.LoadCompleted +=new LoadCompletedEventHandler(webBrowser_LoadCompleted);
// Event Handler
public void webBrowser_LoadCompleted(object sender, NavigationEventArgs e )
{
webBrowser.ContextMenu = null;
var t = webBrowser.Document as System.Windows.Forms.HtmlDocument;
// t is always coming as null, even though I can clearly see the pdf in the web browser control.
if(t != null)
{
t.ContextMenuShowing += new System.Windows.Forms.HtmlElementEventHandler(t_ContextMenuShowing);
}
}
webBrowser.LoadCompleted +=new LoadCompletedEventHandler(webBrowser_LoadCompleted);
// Event Handler
public void webBrowser_LoadCompleted(object sender, NavigationEventArgs e )
{
webBrowser.ContextMenu = null;
var t = webBrowser.Document as System.Windows.Forms.HtmlDocument;
// t is always coming as null, even though I can clearly see the pdf in the web browser control.
if(t != null)
{
t.ContextMenuShowing += new System.Windows.Forms.HtmlElementEventHandler(t_ContextMenuShowing);
}
}
oncontextmenu="return false;"
IsWebBrowserContextMenuEnabled
,因为我正在使用WPF web浏览器控件这可能是因为PDF可视化工具想要显示自己的上下文菜单 你看到的是哪一个上下文菜单?是IE还是PDF可视化工具 我还将尝试使用(您可以在WPF中使用它)。我在WPF应用程序中使用了它,因为它比WPF的功能更多。只需使用它
// Disable the Context menu inside the web browser
webBrowser1.IsWebBrowserContextMenuEnabled = false;
我在Windows应用程序中尝试了这一点您可以将Windows窗体WebBrowser包装为可绑定的,并以一种简单的方式禁用上下文菜单(以及对其他属性的访问):
public class WindowsFormsWebBrowser : WindowsFormsHost
{
public static readonly DependencyProperty HtmlProperty =
DependencyProperty.Register(
"Html",
typeof(string),
typeof(WindowsFormsWebBrowser),
new PropertyMetadata(string.Empty, OnHtmlChanged, null));
public static readonly DependencyProperty IsContentMenuEnabledProperty =
DependencyProperty.Register(
"IsContentMenuEnabled",
typeof(bool),
typeof(WindowsFormsWebBrowser),
new PropertyMetadata(true, OnIsContextMenuEnabledChanged));
private readonly System.Windows.Forms.WebBrowser webBrowser = new System.Windows.Forms.WebBrowser();
public WindowsFormsWebBrowser()
{
Child = webBrowser;
}
public string Html
{
get { return GetValue(HtmlProperty) as string; }
set { SetValue(HtmlProperty, value); }
}
public bool IsContentMenuEnabled
{
get { return (bool)GetValue(IsContentMenuEnabledProperty); }
set { SetValue(IsContentMenuEnabledProperty, value); }
}
private static void OnHtmlChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var browser = d as WindowsFormsWebBrowser;
if (browser == null)
{
return;
}
browser.webBrowser.DocumentText = (string)e.NewValue;
}
private static void OnIsContextMenuEnabledChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var browser = d as WindowsFormsWebBrowser;
if (browser == null)
{
return;
}
browser.webBrowser.IsWebBrowserContextMenuEnabled = (bool)e.NewValue;
}
}
在WPF项目中引用Windows窗体控件的步骤。以下是解决方案:
private void WebBrowser_LoadCompleted(object sender, System.Windows.Navigation.NavigationEventArgs e)
{
((WebBrowser)sender).InvokeScript("eval",
"$(document).contextmenu(function() { return false; });");
}
从道德上讲,我无法帮助您禁用浏览器中的上下文菜单。它给用户带来了太多的痛苦,而且只需一点技术就可以轻松解决,因此依靠它来实现安全性在道德上也是错误的。他使用的是WPF,而不是Windows窗体。