C# WPF Webbrowser 强制所有网页链接在同一页面打开

只要搞懂Winform的  WPF稍微改一改就可以了

主类：负责跳转的

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Linq;

using System.Reflection;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Controls;

using static System.Windows.Forms.AxHost;

namespace Test

{

    public class WebBrowserUrl2

    {

        public String Url { get; }

        public String Frame { get; }

        public WebBrowserUrl2(String url, String frame)

        {

            this.Url = url;

            this.Frame = frame;

        }

    }

    public class WebBrowserEvent

    {

        public bool cancel;

    }

    public class WebbrowserOnNewWindow

    {

        static readonly BindingFlags info =

            BindingFlags.Instance |

            BindingFlags.Public |

            BindingFlags.NonPublic |

            BindingFlags.FlattenHierarchy |

            BindingFlags.CreateInstance;

        private WebBrowser web;

        public WebbrowserOnNewWindow(WebBrowser webBrowser)

        {

            web = webBrowser ?? throw new Exception();

            Excetue();

        }

        //跳转参考这个

        public delegate void OnNewWindow(WebBrowserUrl2 webBrowserUrl, WebBrowserEvent webBrowserEvent);

        public event OnNewWindow BeforeNewWidnow;

        private void Excetue()

        {

            var propertyAxiWebbrowser = web.GetType().GetProperty("AxIWebBrowser2", info);

            var axIWebBrowser2 = propertyAxiWebbrowser.GetValue(web, null);

            var webBrowserEvent = new NewWebBrowserEvent(this);

            var cookie = new ConnectionPointCookie(axIWebBrowser2, webBrowserEvent, typeof(INewDWWebBrowserEvent));

        }

        public void OnBeforeNewWindow(string url, out bool cancel)

        {

            var Arg = BeforeNewWidnow;

            WebBrowserUrl2 webBrowserUrl = new WebBrowserUrl2(url, null);

            WebBrowserEvent webBrowserEvent = new WebBrowserEvent();

            Arg?.Invoke(webBrowserUrl, webBrowserEvent);

            cancel = webBrowserEvent.cancel;

        }

    }

    public class NewWebBrowserEvent : System.Runtime.InteropServices.StandardOleMarshalObject, INewDWWebBrowserEvent

    {

        private WebbrowserOnNewWindow web;

        public NewWebBrowserEvent(WebbrowserOnNewWindow webbrowserOnNewWindow) => web = webbrowserOnNewWindow;

        public void BeforeNavigate2(object pDisp, ref object urlObject, ref object flags, ref object targetFrameName, ref object postData, ref object headers, ref bool cancel)

        {

            //WPF这个和Winform差不多 没写

            //webBrowser.OnBeforeNavigate((string)urlObject, (string)targetFrameName, out cancel);

        }

        //官方说明此 事件是低于IE6时会引发

        public void NewWindow2(ref object ppDisp, ref bool cancel)

        {

            //WPF这个和Winform差不多 没写

            //  webBrowser.OnBeforeNewWindow(((WebBrowser)ppDisp).Url.ToString(), out cancel);

        }

        //当高于IE6时使用

        public void NewWindow3(object pDisp, ref bool cancel, ref object flags, ref object URLContext, ref object URL)

        {

            web.OnBeforeNewWindow((string)URL, out cancel);

        }

    }

    [System.Runtime.InteropServices.ComImport(), System.Runtime.InteropServices.Guid("34A715A0-6587-11D0-924A-0020AFC7AC4D"),

      System.Runtime.InteropServices.InterfaceTypeAttribute(System.Runtime.InteropServices.ComInterfaceType.InterfaceIsIDispatch),

      System.Runtime.InteropServices.TypeLibType(System.Runtime.InteropServices.TypeLibTypeFlags.FHidden)]

    public interface INewDWWebBrowserEvent

    {

        [System.Runtime.InteropServices.DispId()]

        void BeforeNavigate2(object pDisp, ref object urlObject, ref object flags, ref object targetFrameName, ref object postData, ref object headers, ref bool cancel);

        //官方说明此 事件是低于IE6时会引发

        [System.Runtime.InteropServices.DispId()]

        void NewWindow2(ref object ppDisp, ref bool cancel);

        //当高于IE6时使用

        [System.Runtime.InteropServices.DispId()]

        void NewWindow3(object pDisp, ref bool cancel, ref object flags, ref object URLContext, ref object URL);

    }

}

XAML 界面

//省略其他

<Grid>

        <WebBrowser  x:Name="WB"  HorizontalAlignment="Left" Height="" Margin="10,10,0,0" VerticalAlignment="Top" Width="" Source="http://www.baidu.com" LoadCompleted="WB_LoadCompleted" />

    </Grid>

XAML.CS

  public partial class MainWindow : Window

    {

        private bool Start;

        public MainWindow()

        {

            InitializeComponent();

        }

        private void WB_LoadCompleted(object sender, NavigationEventArgs e)

        {

            if (!Start)

            { //这一步是没法省了

              //webbrowser在WPF中时密封类型

                WebbrowserOnNewWindow onNewWindow = new WebbrowserOnNewWindow(WB);

                onNewWindow.BeforeNewWidnow += OnNewWindow_BeforeNewWidnow;

                Start = true;

            }

        }

        private void OnNewWindow_BeforeNewWidnow(WebBrowserUrl2 webBrowserUrl, WebBrowserEvent webBrowserEvent)

        {

            WB.Navigate(new Uri(webBrowserUrl.Url));

            webBrowserEvent.cancel = true;

        }

    }