WebBrowser操作页面时最后出现一个提示框如何自动点击确认

ツCrazy.风。

WebBrowser操作页面时最后出现一个提示框，是否确认。
有没有办法自动点击这个提示框的“是”。
因为这个提示框一出现后面的代码就不走了，而且也无法获得这个提示框的元素。
站长大人，有没有什么办法。自动确认

lancome

这个也是我碰到的问题，我是通过多线程解决的，判断新窗口出现 获得句柄再去关闭，暂时只能这样，我找了很多没有什么办法 ，我尝试只有多线程能解决，还有就是现在我觉得网页操作不方便 ，找dom看脚本麻烦，还不如用 httphelper去模拟网页post，不过有时候post我怕非法数据会不会对网站有啥影响。

lancome

通过多线程来解决，我之前也碰到这样的问题，好像没有什么完美的解决办法，我觉得找dom和看脚本不如用站长的httphelper来模拟post比较方便，就是有时候怕提交非法数据把网站搞死了，不知道会不会！

无心释途

用这个就可以了，这个我稍微改了下回传提示消息的

[C#] 纯文本查看 复制代码

/****************************************************************************

Tilde

Copyright (c) 2008 Tantalus Media Pty

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

****************************************************************************/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace XXX
{
    public class MyWebBrowser : System.Windows.Forms.WebBrowser
    {

        string lpstrText = string.Empty;
        /// <summary>
        /// JS弹出提示的内容
        /// </summary>
        public string LpstrText
        {
            get
            {
                string tmpStr = lpstrText;
                lpstrText = string.Empty;
                return tmpStr;
            }
            set { lpstrText = value; }
        }

        #region ExtendedWebBrowserSite
        class ExtendedWebBrowserSite : WebBrowser.WebBrowserSite, UnsafeNativeMethods.IDocHostShowUI
        {
            int webIndex;
            public ExtendedWebBrowserSite(WebBrowser host, int webIndex)
                : base(host)
            {
                this.webIndex = webIndex;
            }
            void UnsafeNativeMethods.IDocHostShowUI.ShowMessage(ref UnsafeNativeMethods._RemotableHandle hwnd, string lpstrText, string lpstrCaption, uint dwType, string lpstrHelpFile, uint dwHelpContext, out int plResult)
            {
                plResult = 0;
                //TODO:自定义 
                GlobalVariable.LpstrText[webIndex] = lpstrText;
            }
            void UnsafeNativeMethods.IDocHostShowUI.ShowHelp(ref UnsafeNativeMethods._RemotableHandle hwnd, string pszHelpFile, uint uCommand, uint dwData, UnsafeNativeMethods.tagPOINT ptMouse, object pDispatchObjectHit)
            {
                //TODO:自定义 
            }
        }

        /// <summary>
        /// 当前控件的线程序号
        /// </summary>
        public int WebIndex
        {
            get;
            set;
        }
        protected override WebBrowserSiteBase CreateWebBrowserSiteBase()
        {
            return new ExtendedWebBrowserSite(this, WebIndex);
        }
        #endregion
    }

    public class UnsafeNativeMethods
    {
        #region IDocHostShowUI
        [StructLayout(LayoutKind.Explicit, Pack = 4)]
        public struct __MIDL_IWinTypes_0009
        {
            // Fields 
            [FieldOffset(0)]
            public int hInproc;
            [FieldOffset(0)]
            public int hRemote;
        }

        [StructLayout(LayoutKind.Sequential, Pack = 4)]
        public struct _RemotableHandle
        {
            public int fContext;
            public __MIDL_IWinTypes_0009 u;
        }

        [StructLayout(LayoutKind.Sequential, Pack = 4)]
        public struct tagPOINT
        {
            public int x;
            public int y;
        }

        [ComImport, Guid("C4D244B0-D43E-11CF-893B-00AA00BDCE1A"), InterfaceType((short)1)]
        public interface IDocHostShowUI
        {
            [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
            void ShowMessage([In, ComAliasName("ExtendedWebBrowser2.UnsafeNativeMethods.wireHWND")] ref _RemotableHandle hwnd, [In, MarshalAs(UnmanagedType.LPWStr)] string lpstrText, [In, MarshalAs(UnmanagedType.LPWStr)] string lpstrCaption, [In] uint dwType, [In, MarshalAs(UnmanagedType.LPWStr)] string lpstrHelpFile, [In] uint dwHelpContext, [ComAliasName("ExtendedWebBrowser2.UnsafeNativeMethods.LONG_PTR")] out int plResult);
            [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
            void ShowHelp([In, ComAliasName("ExtendedWebBrowser2.UnsafeNativeMethods.wireHWND")] ref _RemotableHandle hwnd, [In, MarshalAs(UnmanagedType.LPWStr)] string pszHelpFile, [In] uint uCommand, [In] uint dwData, [In] tagPOINT ptMouse, [Out, MarshalAs(UnmanagedType.IDispatch)] object pDispatchObjectHit);
        }
        #endregion

    } 
}

94w

把这个添加到加载完成事件中就可以解决了，另外有多余的js函数 自行添加到StringBuilder中

[C#] 纯文本查看 复制代码

private void wb_moluren_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            //*
            WebBrowser wbWebBrowser = (WebBrowser)sender;
            StringBuilder sb = new StringBuilder();
            sb.AppendLine("function alert(){return;}");
            sb.AppendLine("function confirm(){return true;}");
            sb.AppendLine("function showModalDialog(){return;}");
            sb.AppendLine("function window.open(){return;}");
            sb.AppendLine("function prompt(){return;}");
            string strJS = sb.ToString();
            IHTMLWindow2 win = (IHTMLWindow2)wbWebBrowser.Document.Window.DomWindow;
            win.execScript(strJS, "Javascript");
            win = null;
        }

yihonge

真是难得给力的帖子啊。