System.Runtime Defines a provider for progress updates. The type of progress update value. Reports a progress update. The value of the updated progress. Identities the async state machine type for this method. Identities the state machine type for this method. Initializes the attribute. The type that implements the state machine. Gets the type that implements the state machine. Initializes the attribute. The type that implements the state machine. Allows you to obtain the method or property name of the caller to the method. Allows you to obtain the line number in the source file at which the method is called. Allows you to obtain the full path of the source file that contains the caller. This is the file path at the time of compile. Identities the iterator state machine type for this method. Initializes the attribute. The type that implements the state machine.