从Web浏览器页面获取数据到WPF应用程序

Question

I have a wpf application in that i have one text box in which i enter the url and i am fetching that web page in web browser control.Think general for example if i am opening any web page in web browser control in a wpf application i want fetch all the text from that web browser control and diplay it in a text box. from that text box i can export it into any file. i now need information on how to fetch all data from web browser control and then put it into a multi line text box.

Answer 1

You can use the HttpWebRequest and HttpWebResponse objects from System.Net to communicate with a webserver.

eg

string GetWebPage(string address)
{
    string responseText;
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(address);

    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    {
        using (StreamReader responseStream = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("utf-8")))
        {
            responseText = responseStream.ReadToEnd();
        }
    }

    return responseText;
}

You can then set the text of your textbox using:

myTextBox.Text = GetWebPage(address);

To make things nicer for your users, you should make the web requests asynchronous, so you don't lock up the UI while the data is downloading. You could use a BackgroundWorkerThread to do this.