public void refresh()
{
Program.AssertOnEventThread();
SR selectedSr = SR;
bool selected = false;
srListBox.BeginUpdate();
try
{
srListBox.ClearAllNodes();
foreach (SR sr in connection.Cache.SRs)
{
SrPickerItem item = itemFactory.PickerItem(sr, usage, affinity, GetRequiredDiskSizeForSR(sr), existingVDIs);
if (item.Show)
{
srListBox.AddNode(item);
}
foreach (PBD pbd in sr.Connection.ResolveAll(sr.PBDs))
{
if (pbd != null)
{
pbd.PropertyChanged -= Server_PropertyChanged;
pbd.PropertyChanged += Server_PropertyChanged;
}
}
sr.PropertyChanged -= Server_PropertyChanged;
sr.PropertyChanged += Server_PropertyChanged;
}
}
finally
{
srListBox.EndUpdate();
}
if (selectedSr != null)
{
foreach (SrPickerItem node in srListBox.Items)
{
if (node.TheSR != null && node.TheSR.uuid == selectedSr.uuid)
{
srListBox.SelectedItem = node;
onItemSelect();
selected = true;
break;
}
}
}
if (!selected && srListBox.Items.Count > 0)
{// If no selection made, select default SR
if (!selectDefaultSR())
{
// If no default SR, select first entry in list
srListBox.SelectedIndex = 0;
onItemSelect();
}
}
}
private void onItemSelect()
{
SrPickerItem item = srListBox.SelectedItem as SrPickerItem;
if (item == null || !item.Enabled)
{
if (ItemSelectionNull != null)
{
ItemSelectionNull();
}
return;
}
if (ItemSelectionNotNull != null)
{
ItemSelectionNotNull();
}
if (!item.Enabled && LastSelectedItem != null && LastSelectedItem.TheSR.opaque_ref != item.TheSR.opaque_ref)
{
srListBox.SelectedItem = LastSelectedItem;
}
else if (!item.Enabled && LastSelectedItem != null && LastSelectedItem.TheSR.opaque_ref == item.TheSR.opaque_ref)
{
SrPickerItem first = srListBox.Items[0] as SrPickerItem;
if (first != null && first.Enabled)
{
srListBox.SelectedItem = first;
}
else
{
srListBox.SelectedItem = null;
}
}
else
{
LastSelectedItem = item;
}
}
private void onItemSelect()
{
SrPickerItem item = SelectedItem as SrPickerItem;
if (item == null || !item.Enabled)
{
if (SrSelectionChanged != null)
{
SrSelectionChanged(null);
}
return;
}
if (SrSelectionChanged != null)
{
SrSelectionChanged(item);
}
if (!item.Enabled && LastSelectedItem != null && LastSelectedItem.TheSR.opaque_ref != item.TheSR.opaque_ref)
{
SelectedItem = LastSelectedItem;
}
else if (!item.Enabled && LastSelectedItem != null && LastSelectedItem.TheSR.opaque_ref == item.TheSR.opaque_ref)
{
SrPickerItem first = Items[0] as SrPickerItem;
if (first != null && first.Enabled)
{
SelectedItem = first;
}
else
{
SelectedItem = null;
}
}
else
{
LastSelectedItem = item;
}
}
