All lookup data sources.
[Visual Basic 6.0] Property LookupSources As IPropertySet
[Visual Basic .NET] Public ReadOnly Property LookupSources As IPropertySet
[C#] public IPropertySet LookupSources {get;}
[Java] public getLookupSources ( IPropertySet pVal )
[C++] HRESULT get_LookupSources( IPropertySet** pVal );