public void SelectHosts(List <IXenObject> selectedObjects)
{
if (selectedObjects.Count == 0 || HostListTreeView.Items.Count == 0)
{
return;
}
HostListTreeView.BeginUpdate();
HostListTreeView.ClearSelected();
for (int index = 0; index < HostListTreeView.Items.Count; index++)
{
var node = HostListTreeView.Items[index] as HostCustomTreeNode;
if (node == null)
{
continue;
}
IXenConnection con = node.Tag as IXenConnection;
if (con != null)
{
var pool = Helpers.GetPool(con);
if (pool == null)
{
Host master = Helpers.GetMaster(con);
if (master != null && selectedObjects.Contains(master))
{
node.State = CheckState.Checked;
}
}
else
{
if (selectedObjects.Contains(pool))
{
foreach (var subnode in node.ChildNodes)
{
subnode.State = CheckState.Checked;
}
}
}
continue;
}
var host = node.Tag as Host;
if (host != null && selectedObjects.Contains(host))
{
node.State = CheckState.Checked;
}
}
//focus on first checked item so the user can find it in a long list
foreach (var node in HostListTreeView.CheckedItems())
{
HostListTreeView.SelectedItems.Add(node);
break;
}
HostListTreeView.EndUpdate();
}
private void buildList()
{
Program.AssertOnEventThread();
if (inupdate)
{
return;
}
inupdate = true;
HostListTreeView.BeginUpdate();
try
{
// Save old checked states to preserve across update
var oldCheckStates = new Dictionary <string, CheckState>();
foreach (HostCustomTreeNode node in HostListTreeView.Items)
{
if (node.HostOrPoolUuid != null)
{
oldCheckStates.Add(node.HostOrPoolUuid, node.State);
}
}
HostListTreeView.ClearAllNodes();
DeregisterEvents();
foreach (IXenConnection connection in ConnectionsManager.XenConnectionsCopy)
{
connection.ConnectionStateChanged += connection_ConnectionStateChanged;
connection.Cache.RegisterCollectionChanged <Host>(Host_CollectionChangedWithInvoke);
connection.CachePopulated += connection_CachePopulated;
if (!connection.IsConnected)
{
continue; // don't show disconnected connections CA-60514
}
HostCustomTreeNode node = new HostCustomTreeNode(true)
{
Text = Helpers.GetName(connection),
Tag = connection,
Enabled = true,
Description = "",
State = CheckState.Unchecked,
Image = Images.GetImage16For(connection)
};
HostListTreeView.AddNode(node);
// Save uuid of pool to this node
Pool pool = Helpers.GetPoolOfOne(connection);
if (pool == null)
{
continue;
}
pool.PropertyChanged += pool_PropertyChanged;
node.HostOrPoolUuid = pool.uuid;
node.State = (oldCheckStates.ContainsKey(node.HostOrPoolUuid) && node.Enabled) ?
oldCheckStates[node.HostOrPoolUuid] :
CheckState.Unchecked;
if (Helpers.GetPool(connection) != null)
{
node.Image = Images.GetImage16For(pool);
foreach (Host host in connection.Cache.Hosts)
{
bool isHostLive = host.IsLive();
HostCustomTreeNode childnode = new HostCustomTreeNode(true)
{
Text = Helpers.GetName(host),
Tag = host,
HostOrPoolUuid = host.uuid,
Enabled = isHostLive,
Description = isHostLive ? "" : Messages.HOST_NOT_LIVE,
Image = Images.GetImage16For(host)
};
childnode.State = (oldCheckStates.ContainsKey(childnode.HostOrPoolUuid) && childnode.Enabled) ?
oldCheckStates[childnode.HostOrPoolUuid] :
CheckState.Unchecked;
HostListTreeView.AddChildNode(node, childnode);
RegisterHostEvents(host);
}
}
else
{
Host master = Helpers.GetMaster(connection);
if (master != null)
{
bool isMasterLive = master.IsLive();
node.Enabled = isMasterLive;
node.Description = isMasterLive ? "" : Messages.HOST_NOT_LIVE;
node.Image = Images.GetImage16For(master);
RegisterHostEvents(master);
}
}
}
}
finally
{
inupdate = false;
HostListTreeView.EndUpdate();
EnableDisableButtons();
}
}