Screen scrapping means to get other sites data from given URL.
You can do this using the HttpWebRequest and HttpWebResponse classes to screen scrape, you can use the following code to build a Web page that will serve as a simple Web browser. You also learn how to display another Web page inside of yours using an HttpWebRequest. In this example, you scrape the "http://msdn.microsoft.com/en-US/" URL and display it in a panel on your Web page.
For this example we are using System.Net and System.IO Namespaces.
ASPX Code :
C# Example :
The HttpWebRequest to the "http://msdn.microsoft.com/en-US/" page returns a string containing the scraped HTML. The sample assigns the value of this string to the GroupingText property of the Panel control. When the final page is rendered, the browser renders the HTML that was scraped as literal content on the page.
VB.net Example :
(To view original image , click on image)
You can do this using the HttpWebRequest and HttpWebResponse classes to screen scrape, you can use the following code to build a Web page that will serve as a simple Web browser. You also learn how to display another Web page inside of yours using an HttpWebRequest. In this example, you scrape the "http://msdn.microsoft.com/en-US/" URL and display it in a panel on your Web page.
For this example we are using System.Net and System.IO Namespaces.
ASPX Code :
<asp:Panel runat="server" ID="pnlScreen" ScrollBars=Auto
Width="800px" Height="500px"></asp:Panel>
C# Example :
Uri url = new Uri("http://msdn.microsoft.com/en-US/"); if (url.Scheme == Uri.UriSchemeHttp) { //Create Request Object HttpWebRequest objRequest = (HttpWebRequest)HttpWebRequest.Create(url); //Set Request Method objRequest.Method = WebRequestMethods.Http.Get; //Get response from requested url HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse(); //Read response in stream reader StreamReader reader = new StreamReader(objResponse.GetResponseStream()); string tmp = reader.ReadToEnd(); objResponse.Close(); //Set response data to container this.pnlScreen.GroupingText = tmp; }
The HttpWebRequest to the "http://msdn.microsoft.com/en-US/" page returns a string containing the scraped HTML. The sample assigns the value of this string to the GroupingText property of the Panel control. When the final page is rendered, the browser renders the HTML that was scraped as literal content on the page.
VB.net Example :
Dim url As New Uri("http://msdn.microsoft.com/en-US/") If url.Scheme = Uri.UriSchemeHttp Then 'Create Request Object Dim objRequest As HttpWebRequest = DirectCast(HttpWebRequest.Create(url), HttpWebRequest) 'Set Request Method objRequest.Method = WebRequestMethods.Http.[Get] 'Get response from requested url Dim objResponse As HttpWebResponse = DirectCast(objRequest.GetResponse(), HttpWebResponse) 'Read response in stream reader Dim reader As New StreamReader(objResponse.GetResponseStream()) Dim tmp As String = reader.ReadToEnd() objResponse.Close() 'Set response data to container Me.pnlScreen.GroupingText = tmp End IfOutput :
