Question

I have form with web browser component, there is a button which triggers page reload, here is the code:

kiekmiestu = comboBox1.Text;
string nuoroda = "http://centrosokoladine.lt/PHP/generatorius.php?m=" + kiekmiestu;
webBrowser1.Navigate(nuoroda);

Lets say kiemiestu gets teks four, so the php generator generates 4 citys in random places of the map in each page refresh, my problem is that when I click the button second time WebBrowser1 seems nots navigating second time, couse page doesn’t change. Maybe it’s cache problems, o WebBrowser doesn’t navigate to same page if it’s already showed?

Answer 1

You can try webbrowser.refresh()
MSDN:

private void refreshButton_Click(object sender, EventArgs e)
{
    // Skip refresh if about:blank is loaded to avoid removing
    // content specified by the DocumentText property.
    if (!webBrowser1.Url.Equals("about:blank"))
    {
        webBrowser1.Refresh();
    }
}

More about webbrowser.Refresh() and why navigate does not work:

The WebBrowser control stores Web pages from recently visited sites in
a cache on the local hard disk. Each page can specify an expiration
date indicating how long it will remain in the cache. When the control
navigates to a page, it saves time by displaying a cached version, if
one is available, rather than downloading the page again. The Refresh
method forces the WebBrowser control to reload the current page by
downloading it, ensuring that the control displays the latest version.

for clearing the wbbrowser controls cache consider this article: http://support.microsoft.com/kb/326201/de