Classe NamedSet

Gerarchia di ereditarietà

System. . :: . .Object
  Microsoft.AnalysisServices.AdomdClient..::..NamedSet

Sintassi

'Dichiarazione
Public NotInheritable Class NamedSet
'Utilizzo
Dim instance As NamedSet

public sealed class NamedSet

public ref class NamedSet sealed

[<SealedAttribute>]
type NamedSet =  class end

public final class NamedSet

Proprietà

	Nome	Descrizione
	Caption
	Description	Gets the description of the NamedSet.
	DisplayFolder
	Expression	Gets the MDX set expression that defines the NamedSet.
	Name	Gets the name of the NamedSet.
	ParentCube	Gets a CubeDef that contains the NamedSet.
	Properties	Gets a PropertyCollection that contains the properties associated with the NamedSet.

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Metodi

	Nome	Descrizione
	Equals	Determines whether two instances of NamedSet are equal. Esegue l'override di Object. . :: . .Equals(Object).
	Finalize	Ereditato da Object.
	GetHashCode	Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures such as hash tables. Esegue l'override di Object. . :: . .GetHashCode() () () ().
	GetType	Ereditato da Object.
	MemberwiseClone	Ereditato da Object.
	ToString	Returns a String that represents the current object. Esegue l'override di Object. . :: . .ToString() () () ().

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Operatori

	Nome	Descrizione
	Equality	Determines whether two specified instances of NamedSet the same values.
	Inequality	Determines whether two specified instances of NamedSet have different values.

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Osservazioni

A named set is a persisted set expression, which is associated with an alias and defined as part of the structure of a cube. In Multidimensional Expressions (MDX), a set expression can be a lengthy and complex declaration. A named set makes it easier to manage a set expression that is used regularly in MDX or XML for Analysis queries that involve the cube and provides a way of maintaining the set expression independently of the queries that use it.

A NamedSet encapsulates the alias and set expression of a named set, so that the metadata of the named set can be examined and incorporated into queries.

Esempi

The following subroutine, given a CubeDef, iterates through the NamedSets collection and displays information about each NamedSet in the collection:

Public Sub ListNamedSets(ByRef CubeToCheck As CubeDef)

    ' Check the parameter before performing actions on it.
    If CubeToCheck Is Nothing Then
        Throw New System.ArgumentNullException("CubeToCheck")
    Else
        ' Iterate through the NamedSets collection of the
        ' CubeDef object.

        Try
            Dim nsetToCheck As NamedSet

            Debug.WriteLine("Found " & CubeToCheck.NamedSets.Count & _
                " named set(s) in cube:")

            For Each nsetToCheck In CubeToCheck.NamedSets
                Debug.WriteLine("Named Set:  " & nsetToCheck.Name)
                Debug.WriteLine("    Description:  " & _
                    nsetToCheck.Description)
                Debug.WriteLine("    Expression:   " & _
                    nsetToCheck.Expression)
            Next
        Catch ex As AdomdConnectionException
            ' The connection could not be opened or was disconnected.
            ' This error can occur at any time, if the provider is 
            ' disconnected from the server.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdErrorResponseException
            ' A response is received from a provider which indicates an error.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdUnknownResponseException
            ' A response has been returned from the provider that 
            ' was not understood.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdCacheExpiredException
            ' A cached version of an ADOMD.NET object is no longer valid.
            ' This error is typically raised when reviewing metadata.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdException
            ' Any other error raised by ADOMD.NET.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As Exception
            ' Any other error.
            Debug.WriteLine(ex)
            Throw ex
        End Try
    End If
End Sub

Protezione dei thread

I membri static (Shared in Visual Basic) pubblici di questo tipo sono affidabili. Non è invece garantita la sicurezza dei membri dell'istanza.

Vedere anche

Riferimento