Classe Tuple
Represents an ordered collection of members from different hierarchies.
Hierarquia de herança
System.Object
Microsoft.AnalysisServices.AdomdClient.Tuple
Namespace: Microsoft.AnalysisServices.AdomdClient
Assembly: Microsoft.AnalysisServices.AdomdClient (em Microsoft.AnalysisServices.AdomdClient.dll)
Sintaxe
'Declaração
Public NotInheritable Class Tuple
'Uso
Dim instance As Tuple
public sealed class Tuple
public ref class Tuple sealed
[<SealedAttribute>]
type Tuple = class end
public final class Tuple
O tipo Tuple expõe os membros a seguir.
Propriedades
Nome | Descrição | |
---|---|---|
Members | Gets an instance of the MemberCollection class from the Tuple. | |
TupleOrdinal | Gets the ordinal position of the Tuple. |
Início
Métodos
Nome | Descrição | |
---|---|---|
Equals | Determines whether two instances of System.Object are equal. (Substitui Object.Equals(Object).) | |
GetHashCode | Serves as a hash function for a particular type, for use in hashing algorithms and data structures such as hash tables. (Substitui Object.GetHashCode().) | |
GetType | (Herdado de Object.) | |
ToString | (Herdado de Object.) |
Início
Operadores
Nome | Descrição | |
---|---|---|
Equality | Determines whether two specified instances of Tuple are equal. | |
Inequality | Determines whether two specified instances of Tuple are not equal. |
Início
Comentários
A tuple consists of an ordered collection of members.
A tuple cannot contain more than one member from any single hierarchy.
In ADOMD.NET, a Tuple is used to represent a tuple by encapsulating the collection of Member objects that define the tuple. Tuple objects can be referenced only through the Tuples property of a Set.
Exemplos
The following function, given a Tuple, examines the object and returns a Multidimensional Expressions (MDX) string representation of the tuple:
Public Function GetTupleString(ByRef TupleToConvert As Tuple) As String
If TupleToConvert Is Nothing Then
Throw New System.ArgumentNullException("TupleToConvert")
Else
Dim tupleCount As Integer = TupleToConvert.Members.Count
Dim tupleIndex As Integer = 0
If tupleCount = 0 Then
' An empty tuple.
Return "()"
Else
' Iterate through each member in the Members collection,
' adding the value of the UniqueName property to a
' string.
' Because a tuple can represent many members, this
' example uses a StringBuilder object to improve
' string handling performance.
Dim tupleString As New _
System.Text.StringBuilder(15 * tupleCount)
' Tuples are framed with parentheses, with each member
' within a tuple separated by a comma.
tupleString.Append("(")
For tupleIndex = 0 To tupleCount - 1
tupleString.Append( _
TupleToConvert.Members(tupleIndex).UniqueName)
If tupleIndex < (tupleCount - 1) Then
tupleString.Append(", ")
End If
Next
tupleString.Append(")")
Return tupleString.ToString
End If
End If
End Function
Segurança de thread
Qualquer membro público static (Shared no Visual Basic) desse tipo é seguro para threads. Não há garantia de que qualquer membro de instância seja seguro para threads.