HttpWebRequest.Create how to stop caching?

[dchurch]

Hi all,

I'm pretty much at my wits end with this one! ;-)

I have a Windows Forms program that connects to a web server and strips out the useful information that it needs and puts it into a database.

The problem is the page updates about 10-15 times a day, and the HTTPWebRequest in my program caches the pages and doesn't check to see if there is a later version. I've even tried adding a &rnd=[random number here] to the end of the address to try and force a reload.

Any ideas would be very appreciated. I'm using VB.Net 2003 FYI.

        Dim strURL As String
        Dim strResult As String
        Dim wbrq As HttpWebRequest
        Dim wbrs As HttpWebResponse
        Dim sr As StreamReader

        ' Set the URL (and add any querystring values)  
        strURL = "http://xxxxxxxxx/xxxx.php"

        ' Create the web request  
        wbrq = HttpWebRequest.Create(strURL)   
        wbrq.Method = "GET"

        ' Read the returned data   
        wbrs = wbrq.GetResponse
        sr = New StreamReader(wbrs.GetResponseStream)
        strResult = sr.ReadToEnd.Trim
        sr.Close()

        WriteData(strResult) ' UDF which strips out the HTML etc... that I don't need.