Provider Classes

An Updated event for providers calls a user created method using a similar format.   

<provider>_Updated(Object Sender, <prefix>UpdatedEventArgs Args)

The name of the method is typically made up of the <provider> component name followed by _Updated which is, by default, the name of the component and an instance number such as AccountsProvider1.  

The handler will usually be called in two cases. The first case is when the provider is loaded for the first time and the second case is when a change occurs to the data contained in the provider, such as a real-time update to a value.

The Sender parameter identifies the object that fires the event

The Args parameter contains information about the nature of the change that happened to the provider and some kind of contextal information as to what specific object within the provider was affected by this change.

For example, when an Order referenced by an OrdersProvider is filled, the Sender tells you what Order object the event belongs to and the Args object tells you what order was filled.

However when the Updated event is called because the provider was loaded initially this “contextual” information is not available.

The way a user can tell if the reason for the call is because of the initial load or because a realtime event is by using the property Reason of the args object.

A StatusChanged event for providers calls a user created method using a similar format.