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Tests if there currently exists a value for the given the property.
Public Function PropertyExists(ByVal propName As String) As Boolean
public bool PropertyExists(string propName)
The predefined or custom property name.
true if the message store has a value mapped to the property. false otherwise.
Thrown if there is a problem retrieving the property value.
You can use this method to determine if a given property name currently has a value mapped to it by the message store.