AdomdConnection Class
Represents a connection to a multidimensional data source.
네임스페이스: Microsoft.AnalysisServices.AdomdClient
어셈블리: Microsoft.AnalysisServices.AdomdClient (in microsoft.analysisservices.adomdclient.dll)
구문
‘선언
Public NotInheritable Class AdomdConnection
Inherits Component
Implements IDbConnection, IDisposable, ICloneable
public sealed class AdomdConnection : Component, IDbConnection, IDisposable, ICloneable
public ref class AdomdConnection sealed : public Component, IDbConnection, IDisposable, ICloneable
public final class AdomdConnection extends Component implements IDbConnection, IDisposable,
ICloneable
public final class AdomdConnection extends Component implements IDbConnection, IDisposable,
ICloneable
주의
The AdomdConnection represents a connection with an analytical data source (for example, a connection to an instance of Microsoft SQL Server 2005 Analysis Services(SSAS)). Each connection is associated with an XML for Analysis session. If an AdomdConnection goes out of scope, the connection is not closed. To close the connection, you must explicitly call the Close or Dispose method of the AdomdConnection. If the Close or Dispose method is not called, the session associated with the AdomdConnection remains active and can be reused by another AdomdConnection. For more information about managing sessions, see Working With Connections and Sessions in ADOMD.NET and SessionID.
Inheritance Hierarchy
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
Microsoft.AnalysisServices.AdomdClient.AdomdConnection
예
The following subroutine uses the given arguments to build a connection string that the subroutine uses to try to connect to a specified instance of Analysis Services and return an AdomdConnection:
Public Function Connect(Optional ByVal ServerID As String = "localhost", _
Optional ByVal DatabaseID As String = "", _
Optional ByVal UserID As String = "", _
Optional ByVal Password As String = "") As AdomdConnection
Dim strConnectionString As String
Dim objConnection As AdomdConnection
Try
' First, build the connection string.
'
' The ConnectionString property consists of
' key/value pairs seperated by semicolons.
' - The format, as a regular expression, should be:
' (<Key>=<Value>)*([[;]/*(<Key>=<Value>)])
' The connection string can take "Datasource", "Data Source",
' or "Location" for this parameter.
If ServerID <> "" Then
strConnectionString &= "Data Source=" & ServerID & ";"
End If
' The connection string can take "Catalog" or "Initial Catalog"
' for this parameter.
If DatabaseID <> "" Then
strConnectionString &= "Initial Catalog=" & DatabaseID & ";"
End If
' The connection string can take "UID", "User ID",
' "Authenticated User", or "UserName" for this parameter.
If UserID <> "" Then
strConnectionString &= "User ID=" & UserID & ";"
End If
' The connection string can take "PWD" or "Password"
' for this parameter.
If Password <> "" Then
strConnectionString &= "Password=" & Password & ";"
End If
' Get a reference to an AdomdConnection object.
objConnection = New AdomdConnection()
' Assign the connection string and try to
' open a connection.
objConnection.ConnectionString = strConnectionString
objConnection.Open()
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)
Catch ex As AdomdErrorResponseException
' A response is received from a provider that indicates an error.
Debug.WriteLine(ex)
Catch ex As AdomdUnknownResponseException
' A response has been returned from the provider that
' was not understood.
Debug.WriteLine(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)
Catch ex As AdomdException
' Any other error raised by ADOMD.NET.
Debug.WriteLine(ex)
Catch ex As Exception
' Any other error that occurs.
Debug.WriteLine(ex)
Finally
Debug.Write("The connection ")
If objConnection.State = ConnectionState.Open Then
Debug.WriteLine("is connected!")
Else
Debug.WriteLine("failed to connect!")
End If
End Try
' Return the AdomdConnection object.
Return objConnection
End Function
스레드 보안
Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
플랫폼
개발 플랫폼
지원되는 플랫폼 목록은 SQL Server 2005 설치를 위한 하드웨어 및 소프트웨어 요구 사항을 참조하십시오.
대상 플랫폼
지원되는 플랫폼 목록은 SQL Server 2005 설치를 위한 하드웨어 및 소프트웨어 요구 사항을 참조하십시오.
참고 항목
참조
AdomdConnection Members
Microsoft.AnalysisServices.AdomdClient Namespace