private ListEntryDerived FindEntry(object key)
{
ListEntryDerived entry = entries;
while (entry != null)
{
if (entry.key == key)
{
return(entry);
}
entry = entry.next;
}
return(null);
}
public void AddHandlers(EventHandlerListDerived listToAddFrom)
{
if (listToAddFrom == null)
{
return;
}
ListEntryDerived entry = listToAddFrom.entries;
while (entry != null)
{
AddHandler(entry.key, entry.value);
entry = entry.next;
}
}
public void RemoveHandler(object key, Delegate value)
{
if (key == null)
{
null_entry = Delegate.Remove(null_entry, value);
return;
}
ListEntryDerived entry = FindEntry(key);
if (entry == null)
{
return;
}
entry.value = Delegate.Remove(entry.value, value);
}
public void AddHandler(object key, Delegate value)
{
if (key == null)
{
null_entry = Delegate.Combine(null_entry, value);
return;
}
ListEntryDerived entry = FindEntry(key);
if (entry == null)
{
entry = new ListEntryDerived();
entry.key = key;
entry.value = null;
entry.next = entries;
entries = entry;
}
entry.value = Delegate.Combine(entry.value, value);
}
public Delegate this [object key] {
get {
if (key == null)
{
return(null_entry);
}
ListEntryDerived entry = FindEntry(key);
if (entry != null)
{
return(entry.value);
}
else
{
return(null);
}
}
set {
AddHandler(key, value);
}
}
public void Dispose()
{
entries = null;
}
