IJSONObject.IsValueNull Method

Returns VARIANT_TRUE if member is undefined or member's value is null. Returns VARIANT_FALSE if member exists and its value is not null.

[Visual Basic .NET]
Public Function IsValueNull ( _
    ByVal Name As String _
) As Boolean

[C#]
public bool IsValueNull (
    string Name
);

[C++]
HRESULT IsValueNull(
  BSTR Name,
  VARIANT_BOOL* IsNull
);

[C++]
Parameters
Name [in]
  Name is a parameter of type BSTR
IsNull [out, retval]
  IsNull is a parameter of type VARIANT_BOOL

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See Also