Extensions.HMI.MessageType

Classification

Name	MessageType
Short Description	Characteristics of a message shown in a ConfirmDialog
Class	Simple Data Type
Base Data Type	SimpleType
Default Value	INFO
Provide a Literal	Yes
SpecifiedBy	ISO 13209-3
Standard Compliant	Yes

Description

MessageType is an enumeration type describing the characteristics of a message shown in a ConfirmDialog.

The list of allowed enumeration values is defined as follows:

Value	Literal	Description
INFO	@MessageType:INFO	Displayed message is just for information.
WARNING	@MessageType:WARNING	Displayed message is a warning.
ERROR	@MessageType:ERROR	Displayed message describes an error.
YESNO_QUESTION	@MessageType:YESNO_QUESTION	Displayed message represents a question answerable by "yes" or "no".
YESNOCANCEL_QUESTION	@MessageType:YESNOCANCEL_QUESTION	Displayed message is a question which does not require a response.

Order Relation

MessageType values may occur as operands of comparisons. For this case, the following order relation is defined. Started with the lowest value INFO = 0:

INFO < WARNING < ERROR < YESNO_QUESTION < YESNOCANCEL_QUESTION

Literal

The syntax for Literals for complex data types will be used, where the member value is one of the values in the list.

@MessageType:INFO|WARNING|ERROR|YESNO_QUESTION|YESNOCANCEL_QUESTION

Core Conversion

The following table shows the rules for conversion to another data type:

Conversion	Result	Sample
ToBoolean	Undefined (should not be used)
ToInteger	Returns the index of the value in the MessageTypes enumeration (smallest index is 0)	Integer val = ToInteger(@MessageType:INFO); // Returns 0
ToFloat	Undefined (should not be used)
ToString	Returns the name of the enumeration value	String s = ToString(@MessageType:INFO); // Returns "INFO"
ToByteField	Undefined (should not be used)

Sample

HMI.MessageType MessageTypeVariable = @MessageType:INFO;