public void addWebSite(string siteUrl, string username, string password, string websiteName)
{
siteListView.BeginUpdate();
ListViewItem item = new ListViewItem();
item.Text = siteListView.Items.Count + "";
item.SubItems.Add(websiteName);
item.SubItems.Add(siteUrl);
item.SubItems.Add(username);
item.SubItems.Add("******");
siteListView.Items.Add(item);
siteListView.EndUpdate();
dbManage.addWebsiteInfo(0, siteUrl, username, password, websiteName);
}