private void BindGrid()
{
    DataSet ds = new DataSet();
    string filePath = Request.PhysicalApplicationPath + "log.xml";
    if(Cache["refresh"] == null || !File.Exists(filePath))
    {
        Cache.Insert("refresh", true, null, DateTime.Now.AddMinutes(1), TimeSpan.Zero);
        
        if (File.Exists(filePath))
        {
            File.Delete(filePath);
        }

        string command = Server.MapPath("svn.exe");
        string args = @"log --xml http://subsonicproject.googlecode.com/svn/trunk/";
        ProcessStartInfo psi = new ProcessStartInfo(command, args);
        psi.CreateNoWindow = true;
        psi.UseShellExecute = false;
        psi.RedirectStandardOutput = true;
        psi.RedirectStandardError = true;
        
        Process proc = Process.Start(psi);
        proc.Start();

        string content = proc.StandardOutput.ReadToEnd();
        File.WriteAllText(filePath, content);
        
        proc.StandardOutput.Close();
        proc.Close();            
    }

    ds.ReadXml(filePath);
    grid.DataSource = ds;
    grid.DataBind();
}