Apply an "is null" constraint to the named property
            
Namespace: NHibernate.Criterion.LambdaAssembly: NHibernate (in NHibernate.dll) Version: 3.2.0.4000 (3.2.0.4000)
Syntax
| C# | 
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public AbstractCriterion IsNull { get; }  | 
| Visual Basic | 
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Public ReadOnly Property IsNull As AbstractCriterion Get  | 
| Visual C++ | 
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public: property AbstractCriterion^ IsNull { AbstractCriterion^ get (); }  |