.net System.Windows.Forms.WebBrowser 在同一窗口或同一会话的新窗口中打开链接
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System.Windows.Forms.WebBrowser open links in same window or new window with same session
提问by Greg Bray
When using the .NET WebBrowser control how do you open a link in a new window using the the same session (ie.. do not start a new ASP.NET session on the server), or how do you capture the new window event to open the URL in the same WebBrowser control?
使用 .NET WebBrowser 控件时，如何使用相同的会话在新窗口中打开链接（即，不在服务器上启动新的 ASP.NET 会话），或者如何捕获新窗口事件以在同一个 WebBrowser 控件中打开 URL？
回答by Greg Bray
I just spent an hour looking for the answer, so I though I would post the results here. You can use the SHDocVwCtl.WebBrowser_V1 object to capture the NewWindow event.
我只是花了一个小时寻找答案，所以我想我会在这里发布结果。您可以使用 SHDocVwCtl.WebBrowser_V1 对象来捕获 NewWindow 事件。
NOTE: Code from http://www.experts-exchange.com/Programming/Languages/Visual_Basic/Q_21484555.html#discussion
注意：来自http://www.experts-exchange.com/Programming/Languages/Visual_Basic/Q_21484555.html#discussion 的代码
//-------------------------------VB.NET Version:-------------------------------
Dim WithEvents Web_V1 As SHDocVwCtl.WebBrowser_V1
Private Sub Form_Load()
Set Web_V1 = WebBrowser1.Object
End Sub
Private Sub Web_V1_NewWindow(ByVal URL As String, ByVal Flags As Long, ByVal TargetFrameName As String, PostData As Variant, ByVal Headers As String, Processed As Boolean)
Processed = True
WebBrowser1.Navigate URL
End Sub
//-------------------------------C# Version-------------------------------
private SHDocVw.WebBrowser_V1 Web_V1; //Interface to expose ActiveX methods
private void Form1_Load(object sender, EventArgs e)
{
//Setup Web_V1 interface and register event handler
Web_V1 = (SHDocVw.WebBrowser_V1)this.webBrowser1.ActiveXInstance;
Web_V1.NewWindow += new SHDocVw.DWebBrowserEvents_NewWindowEventHandler(Web_V1_NewWindow);
}
private void Web_V1_NewWindow(string URL, int Flags, string TargetFrameName, ref object PostData,string Headers, ref bool Processed)
{
Processed = true; //Stop event from being processed
//Code to open in same window
this.webBrowser1.Navigate(URL);
//Code to open in new window instead of same window
//Form1 Popup = new Form1();
//Popup.webBrowser1.Navigate(URL);
//Popup.Show();
}
回答by jvenema
Slightly cleaned up version of Greg's answer. It modifies the passed-in control's behavior rather than relying on a global variable. Usage:
稍微清理了格雷格答案的版本。它修改传入控件的行为，而不是依赖全局变量。用法：
InlinePopups(webBrowser1);
Code:
代码：
// interface to expose ActiveX methods
private SHDocVw.WebBrowser_V1 Web_V1;
private void InlinePopups(WebBrowser browser)
{
// hooks to force new windows to open in the current instance
Web_V1 = (SHDocVw.WebBrowser_V1)browser.ActiveXInstance;
Web_V1.NewWindow += new SHDocVw.DWebBrowserEvents_NewWindowEventHandler((string URL, int Flags, string TargetFrameName, ref object PostData, string Headers, ref bool Processed) =>
{
Processed = true; // stop event from being processed
// open in the existing window
browser.Navigate(URL);
});
}
Still needs the reference to %WINDIR%\system32\shdocvw.dll, of course.
当然，仍然需要对 %WINDIR%\system32\shdocvw.dll 的引用。
