NamedSet 類別
Represents a named set for a given cube.
繼承階層
System. . :: . .Object
Microsoft.AnalysisServices.AdomdClient..::..NamedSet
命名空間: Microsoft.AnalysisServices.AdomdClient
組件: Microsoft.AnalysisServices.AdomdClient (在 Microsoft.AnalysisServices.AdomdClient.dll 中)
語法
'宣告
Public NotInheritable Class NamedSet
'用途
Dim instance As NamedSet
public sealed class NamedSet
public ref class NamedSet sealed
[<SealedAttribute>]
type NamedSet = class end
public final class NamedSet
NamedSet 型別公開下列成員。
屬性
名稱 | 說明 | |
---|---|---|
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. |
上層
方法
名稱 | 說明 | |
---|---|---|
Equals | Determines whether two instances of NamedSet are equal. (覆寫 Object. . :: . .Equals(Object)。) | |
Finalize | (繼承自 Object。) | |
GetHashCode | Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures such as hash tables. (覆寫 Object. . :: . .GetHashCode() () () ()。) | |
GetType | (繼承自 Object。) | |
MemberwiseClone | (繼承自 Object。) | |
ToString | Returns a String that represents the current object. (覆寫 Object. . :: . .ToString() () () ()。) |
上層
運算子
名稱 | 說明 | |
---|---|---|
Equality | Determines whether two specified instances of NamedSet the same values. | |
Inequality | Determines whether two specified instances of NamedSet have different values. |
上層
備註
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.
範例
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
執行緒安全性
這個型別的任何公用 static (在 Visual Basic 中為 Shared) 成員都是執行緒安全的。並不是所有的執行個體成員都保證可以用於所有的執行緒。