public void AddExtendedBrowsingHandlers(Hashtable handlers)
{
object targetObject = this.TargetObject;
if (targetObject != null)
{
for (int i = 0; i < extendedInterfaces.Length; i++)
{
System.Type type = extendedInterfaces[i];
if (type.IsInstanceOfType(targetObject))
{
Com2ExtendedBrowsingHandler handler = (Com2ExtendedBrowsingHandler)handlers[type];
if (handler == null)
{
handler = (Com2ExtendedBrowsingHandler)Activator.CreateInstance(extendedInterfaceHandlerTypes[i]);
handlers[type] = handler;
}
if (!type.IsAssignableFrom(handler.Interface))
{
throw new ArgumentException(System.Windows.Forms.SR.GetString("COM2BadHandlerType", new object[] { type.Name, handler.Interface.Name }));
}
handler.SetupPropertyHandlers(this.props);
}
}
}
}
/// <include file='doc\COM2Properties.uex' path='docs/doc[@for="Com2Properties.AddExtendedBrowsingHandlers"]/*' />
/// <devdoc>
/// Checks the source object for eache extended browsing inteface
/// listed in extendedInterfaces and creates a handler from extendedInterfaceHandlerTypes
/// to handle it.
/// </devdoc>
public void AddExtendedBrowsingHandlers(Hashtable handlers)
{
object target = this.TargetObject;
if (target == null)
{
return;
}
// process all our registered types
Type t;
for (int i = 0; i < extendedInterfaces.Length; i++)
{
t = extendedInterfaces[i];
// is this object an implementor of the interface?
//
if (t.IsInstanceOfType(target))
{
// since handlers must be stateless, check to see if we've already
// created one of this type
//
Com2ExtendedBrowsingHandler handler = (Com2ExtendedBrowsingHandler)handlers[t];
if (handler == null)
{
handler = (Com2ExtendedBrowsingHandler)Activator.CreateInstance(extendedInterfaceHandlerTypes[i]);
handlers[t] = handler;
}
// make sure we got the right one
//
if (t.IsAssignableFrom(handler.Interface))
{
#if DEBUG
if (DbgCom2PropertiesSwitch.TraceVerbose)
{
Debug.WriteLine("Adding browsing handler type " + handler.Interface.Name + " to object " + dbgObjName + ", class=" + dbgObjClass);
}
#endif
// allow the handler to attach itself to the appropriate properties
//
handler.SetupPropertyHandlers(props);
}
else
{
throw new ArgumentException(string.Format(SR.COM2BadHandlerType, t.Name, handler.Interface.Name));
}
}
}
}
