/// <summary>
/// Updates the file server listbox.
/// </summary>
static void UpdateServerListBox(ServerInfoListBox lb, IEnumerable <ServerInfoBase> servers,
ServerInfoEventHandler changedEventHandler)
{
try
{
// Use Invoke to ensure we are in the correct thread
lb.Invoke((Action) delegate
{
// Store the selected item so we can restore it when done
var selected = lb.SelectedItem;
// Remove the update listener from existing items to make sure we don't add it twice (no harm in removing
// the event hook if it doesn't exist to begin with)
foreach (var s in lb.Items.OfType <ServerInfoBase>())
{
s.ServerChanged -= changedEventHandler;
s.ProgressChanged -= changedEventHandler;
}
// Add the update listener to all items (after double-checking that the event listener isn't attached)
foreach (var s in servers)
{
s.ServerChanged -= changedEventHandler;
s.ProgressChanged -= changedEventHandler;
s.ServerChanged += changedEventHandler;
s.ProgressChanged += changedEventHandler;
}
// Re-add all items
lb.Items.Clear();
lb.Items.AddRange(servers.Cast <object>().ToArray());
// Restore the selected item if it is still in the list
if (servers.Any(x => x == selected))
{
lb.SelectedItem = selected;
}
});
}
catch (Exception ex)
{
Debug.Fail(ex.ToString());
}
}
/// <summary>
/// Updates the file server listbox.
/// </summary>
static void UpdateServerListBox(ServerInfoListBox lb, IEnumerable<ServerInfoBase> servers,
ServerInfoEventHandler changedEventHandler)
{
try
{
// Use Invoke to ensure we are in the correct thread
lb.Invoke((Action)delegate
{
// Store the selected item so we can restore it when done
var selected = lb.SelectedItem;
// Remove the update listener from existing items to make sure we don't add it twice (no harm in removing
// the event hook if it doesn't exist to begin with)
foreach (var s in lb.Items.OfType<ServerInfoBase>())
{
s.ServerChanged -= changedEventHandler;
s.ProgressChanged -= changedEventHandler;
}
// Add the update listener to all items (after double-checking that the event listener isn't attached)
foreach (var s in servers)
{
s.ServerChanged -= changedEventHandler;
s.ProgressChanged -= changedEventHandler;
s.ServerChanged += changedEventHandler;
s.ProgressChanged += changedEventHandler;
}
// Re-add all items
lb.Items.Clear();
lb.Items.AddRange(servers.Cast<object>().ToArray());
// Restore the selected item if it is still in the list
if (servers.Any(x => x == selected))
lb.SelectedItem = selected;
});
}
catch (Exception ex)
{
Debug.Fail(ex.ToString());
}
}