Controls visible alarm areas on an Alarm Filter. If its value is not an empty String, it displays events whose Area names start with the indicated text. For example, if AreaFilter is equal to "Ana", it displays Area alarms such as "Analog.Production" or "Analysis", but not "Digital.Analysis" or "Digital.Production". When the SimpleAreaFilter property is set to True, an Alarm Area also allows using wildcard characters for filtering and multiple Area filters, separated by colons. Allowed wildcard characters are:

•"*": Accepts none or any amount of characters

•"?": Accepts any character

•"#": Accepts any digit

•"[ ]": Allows specifying a set of characters

•"[ab]": Accepts a character if it is "a" or "b"

•"[f-h]": Accepts a character if it is between "f" and "h"

•"[!cz]": Accepts a character if it is neither "c" nor "z"

•"[!m-p]": Accepts a character if it is not between "m" and "p"

Default value of this property is an empty String, that is, no filtering by area. Please check also the CustomFilter, SimpleAreaFilter, ShowCriticalPriority, ShowHighPriority, ShowMediumPriority, and ShowLowPriority properties.