webbrowser如何修改useragent ?

越狱

我想通过webbrowser模拟360浏览器来抓取网页信息，请问如何修改webbrowser的useragent ？求指导，网上的几个方法试了，都不行.

站长苏飞

使用WinApi

越狱

站长苏飞 发表于 2015-7-6 15:12
使用WinApi

能不能再稍微给一些提示？

站长苏飞

[C#] 纯文本查看 复制代码

public partial class Form1 : Form

{

    bool isUserAgentSet = false;


    public Form1()

    {

        InitializeComponent();

    }


    private void Form1_Load(object sender, EventArgs e)

    {

        this.webBrowser.Navigate(“[url]Http://someurl.com[/url]”);

    }


    private void webBrowser_Navigating(object sender, WebBrowserNavigatingEventArgs e)

    {

        //Check if the custom user agent is set

        if (!isUserAgentSet)

        {

            //cancel the current request

            e.Cancel = true;

            this.isUserAgentSet = true;


            //Navigate to the desired location using the custom user agent

            this.webBrowser.Navigate(e.Url, e.TargetFrameName, null, "User-Agent: CustomUserAgent\r\n");

        }

    }


    private void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)

    {

        //reset isUserAgentSet to prepare for the next navigate command

        this.isUserAgentSet = false;

    }

}

越狱

站长苏飞 发表于 2015-7-7 08:12
[mw_shl_code=csharp,true]public partial class Form1 : Form

{

谢谢了站长

js520e

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