Hi Ramesh,
I have known your requirement more clearly this time. I have searched a lot for disable javascript for the current webbrowser control without change IE security settings, but it is unlucky that I cannot find a perfect solution.
However, I found the following topic at last
http://www.experts-exchange.com/Programming/Languages/Visual_Basic/VB_Controls/Q_20569165.html
The solution given by Rhaedes had been accepted by the thread owner. According to his suggestion, I have written the code below to implement it.
using System.Web;
using System.Net;
using System.IO;
using System.Text.RegularExpressions;
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string url = "http://www.msn.com";
string htmlDocText = TrimScript(GetHtmlContent(url));
File.WriteAllText("D:\\temp.htm", htmlDocText);
webBrowser1.Url = new Uri("D:\\temp.htm");
}
private string GetHtmlContent(string url)
{
string htmlContentText = String.Empty;
HttpWebRequest httpWebRequest = null;
HttpWebResponse httpWebResponse = null;
StreamReader streamReader = null;
try
{
httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
httpWebRequest.Timeout = 5000;
streamReader = new StreamReader(httpWebResponse.GetResponseStream(), Encoding.Default);
htmlContentText = streamReader.ReadToEnd();
streamReader.Close();
httpWebResponse.Close();
}
catch { }
finally
{
httpWebResponse.Close();
streamReader.Close();
}
return htmlContentText;
}
private string TrimScript(string htmlDocText)
{
string bodyText = "";
string trimJavascript = "<script type=\"text/javascript\">(.*?)</script>";
Regex regexTrimJs = new Regex(trimJavascript);
bodyText = regexTrimJs.Replace(htmlDocText, "");
return bodyText;
}
}
The GetHtmlContent method will download the page of a special URL. The TrimScript method will use regular expression to trim the javascript. So I can save the html document without javascript to the disk. At last, I will load the page from that temp html file.
I have tested the msn web site, after I did the above step in my code, I cannot find javascript in the page source.
Remark:
If the javascript block is not defined as <script type=\"text/javascript\">...</script>, you can change the regular expression a little to match that format. Otherwise, it won’t be cleared thoroughly.
Hope you can benefit from this solution.
Sincerely,
Kira Qian
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