Public Function Query( _
   ByVal mapFunctionalityName As String, _
   ByVal layerID As String, _
   ByVal queryFilter As ESRI.ArcGIS.ADF.Web.QueryFilter _
) As DataTable

Dim instance As QueryFunctionality
Dim mapFunctionalityName As String
Dim layerID As String
Dim queryFilter As ESRI.ArcGIS.ADF.Web.QueryFilter
Dim value As DataTable
 
value = instance.Query(mapFunctionalityName, layerID, queryFilter)

public DataTable Query( 
   string mapFunctionalityName,
   string layerID,
   ESRI.ArcGIS.ADF.Web.QueryFilter queryFilter
)