When overridden in a derived class, determines a value indicating whether the value of this property needs to be persisted.
Assembly: System (in System.dll)
Typically, this method is implemented through reflection.Notes to Inheritors
When overridden in a derived class, this method returns true if the current value of the property is different from its default value. It looks for a default value by first looking for a DefaultValueAttribute. If the method finds this attribute, it compares the value of the attribute with the property's current value. If this method cannot find a DefaultValueAttribute, it looks for a "ShouldSerializeMyProperty" method that you need to implement. If it is found, invokes it. If this method cannot find a DefaultValueAttribute or a "ShouldSerializeMyProperty" method, it cannot create optimizations and it returns true.