public void RemoveHandler(int dispid, object func)
{
string name = String.Format(CultureInfo.InvariantCulture, "[DISPID={0}]", dispid);
lock (_lockObject) {
ComEventSinkMethod sinkEntry = FindSinkMethod(name);
if (sinkEntry == null)
{
throw Error.RemovingUnregisteredHandler();
}
// Remove the delegate from multicast delegate chain.
// We will need to find the delegate that corresponds
// to the func handler we want to remove. This will be
// easy since we Target property of the delegate object
// is a ComEventCallContext object.
Delegate[] delegates = sinkEntry._target.GetInvocationList();
foreach (Delegate d in delegates)
{
ComEventCallContext callContext = d.Target as ComEventCallContext;
if (callContext != null && callContext._func.Equals(func))
{
sinkEntry._target = Delegate.Remove(sinkEntry._target, d);
break;
}
}
// If the delegates chain is empty - we can remove
// corresponding ComEvenSinkEntry
if (sinkEntry._target == null)
{
_comEventSinkMethods.Remove(sinkEntry);
}
// We can Unadvise from the ConnectionPoint if no more sink entries
// are registered for this interface
//(calling Dispose will call IConnectionPoint.Unadvise).
if (_comEventSinkMethods.Count == 0)
{
// notice that we do not remove
// ComEventSinkEntry from the list, we will re-use this data structure
// if a new handler needs to be attached.
Dispose();
}
}
}
public void AddHandler(int dispid, object func)
{
string name = String.Format(CultureInfo.InvariantCulture, "[DISPID={0}]", dispid);
ComEventCallHandler handler = new ComEventCallContext(func).Call;
lock (_lockObject) {
ComEventSinkMethod sinkMethod;
sinkMethod = FindSinkMethod(name);
if (sinkMethod == null)
{
if (_comEventSinkMethods == null)
{
_comEventSinkMethods = new List <ComEventSinkMethod>();
}
sinkMethod = new ComEventSinkMethod();
sinkMethod._name = name;
_comEventSinkMethods.Add(sinkMethod);
}
sinkMethod._target = Delegate.Combine(sinkMethod._target, handler);
}
}
public void AddHandler(int dispid, object func) {
string name = String.Format(CultureInfo.InvariantCulture, "[DISPID={0}]", dispid);
ComEventCallHandler handler = new ComEventCallContext(func).Call;
lock (_lockObject) {
ComEventSinkMethod sinkMethod;
sinkMethod = FindSinkMethod(name);
if (sinkMethod == null) {
if (_comEventSinkMethods == null) {
_comEventSinkMethods = new List<ComEventSinkMethod>();
}
sinkMethod = new ComEventSinkMethod();
sinkMethod._name = name;
_comEventSinkMethods.Add(sinkMethod);
}
sinkMethod._target = Delegate.Combine(sinkMethod._target, handler);
}
}
