Proprietà EnumURN

Sintassi

'Dichiarazione
Public Property EnumURN As String
    Get
    Set
'Utilizzo
Dim instance As ForEachSMOEnumerator
Dim value As String

value = instance.EnumURN

instance.EnumURN = value

public string EnumURN { get; set; }

public:
virtual property String^ EnumURN {
    String^ get () sealed;
    void set (String^ value) sealed;
}

abstract EnumURN : string with get, set
override EnumURN : string with get, set

final function get EnumURN () : String
final function set EnumURN (value : String)

Implementa

IDTSForEachSMOEnumerator. . :: . .EnumURN

Osservazioni

The SMO enumeration URN contains four parts. First is the string, RuntimeServer. followed by a connection. The following line of code is an example of an EnumURN property where a connection has been specified.

RuntimeServer[@Connection='{B1552E8D-43AE-44B1-B5D3-03C4F5461977}']/Server[@Name='localhost']/SMOEnumObj[@Name='Databases']/SMOEnumType[@Name='Names']

The second part of the string is the server name parameter.

The last two parts of the string are the SMOEnumObj and SMOEnumType parameters. The SMOEnumObj parameter, which comes third in the four-part string, describes which enumeration object is enumerated. Valid values are:

@"LinkedServers"

@"Jobs"

@"Logins"

@"Databases"

@"FileGroups"

@"DataFiles"

@"LogFiles"

@"StoredProcedures"

@"UserDefinedDataTypes"

@"UserDefinedFunctions"

@"Views"

@"Users"

@"Tables"

@"Columns"

@"ForeignKeys"

@"Triggers

The code sample above shows an enumeration over databases.

The fourth and final part of the configuration string is the SMOEnumType parameter, which specifies the enumeration type to use. Valid values are:

@"Objects"

@"ObjectsPP"

@"Names"

@"URNs"

@"Locations"

The code sample above enumerates using names.

Esempi

The ForEachSMOEnumerator object is created and hosted by a ForEachEnumeratorHost. The following code example shows how to create a ForEachSMOEnumerator within the host object.

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO;
using Microsoft.SqlServer.Dts.Runtime;


namespace Microsoft.SqlServer.SSIS.Samples
{
    internal class EnumType
    {
        public const string SMOEnum = "Foreach SMO Enumerator";
    }
    class Program
    {
        static void Main(string[] args)
        {
            Application app = new Application();
            ForEachEnumeratorInfos infos = app.ForEachEnumeratorInfos;
            ForEachEnumeratorInfo info = null;

            foreach (ForEachEnumeratorInfo enumInfo in infos)
            {
            Console.Write("Available enumerators: {0}\n", enumInfo.Name);
            // When the SMO enumerator is found, set the info variable.
            if (enumInfo.Name == EnumType.SMOEnum)
            {  
                info = enumInfo;
            }
        }

        ForEachEnumeratorHost enumH = info.CreateNew();
        Console.WriteLine("SMO Enumerator: " + enumH.InnerObject.ToString());
        ForEachSMOEnumerator smoEnumerator = (ForEachSMOEnumerator)enumH.InnerObject;
        smoEnumerator.EnumURN = "RuntimeServer[@Variable='MachineName']/Server[@Name='localhost']/" +
            "SMOEnumObj[@Name='Databases']/SMOEnumType[@Name='Names']";
    Console.WriteLine("SMO.EnumURN = {0}", smoEnumerator.EnumURN);
        }
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO
Imports Microsoft.SqlServer.Dts.Runtime

Namespace Microsoft.SqlServer.SSIS.Samples
    Friend Class EnumType
        Public const String SMOEnum = "Foreach SMO Enumerator"
    End Class
    Class Program
        Shared  Sub Main(ByVal args() As String)
            Dim app As Application =  New Application() 
            Dim infos As ForEachEnumeratorInfos =  app.ForEachEnumeratorInfos 
            Dim info As ForEachEnumeratorInfo =  Nothing 

            Dim EnumInfo As ForEachEnumeratorInfo 
            Dim enumInfo As ForEachEnumeratorInfo
            End Enum
            For Each EnumInfo In infos 
            For Each EnumInfo In infos Console.Write("Available enumerators: {0}\n" EnumInfo.Name) End Enum 
            For Each enumInfo In infos
            Console.Write("Available enumerators: {0}\n" enumInfo.Name)
            End Enum
            End Enum
            ' When the SMO enumerator is found, set the info variable.
            If EnumInfo.Name = EnumType.SMOEnum Then 
            Dim EnumInfo.Name As If =  EnumType.SMOEnum Then info  =  EnumInfo  End Enum
            If enumInfo.Name = EnumType.SMOEnum Then
                info = enumInfo
            End Enum
            End Enum
            End If
            Next

        Dim EnumH As ForEachEnumeratorHost =  info.CreateNew() 
        Dim enumH As ForEachEnumeratorHost =  info.CreateNew() 
        End Enum
        Console.WriteLine("SMO Enumerator: " + EnumH.InnerObject.ToString()) 
        Console.WriteLine("SMO Enumerator: " + enumH.InnerObject.ToString())
        End Enum
        Dim smoEnumerator As ForEachSMOEnumerator = CType(EnumH.InnerObject, ForEachSMOEnumerator)
        Dim smoEnumerator As ForEachSMOEnumerator = CType(enumH.InnerObject, ForEachSMOEnumerator)
        End Enum
        smoEnumerator.EnumURN = "RuntimeServer[@Variable='MachineName']/Server[@Name='localhost']/" +
            "SMOEnumObj[@Name='Databases']/SMOEnumType[@Name='Names']"
        Console.WriteLine("SMO.EnumURN = {0}", smoEnumerator.EnumURN)
        End Sub
    End Class
End Namespace

Sample Output:

Available enumerators: Foreach File Enumerator

Available enumerators: Foreach Item Enumerator

Available enumerators: Foreach ADO Enumerator

Available enumerators: Foreach ADO.NET Schema Rowset Enumerator

Available enumerators: Foreach From Variable Enumerator

Available enumerators: Foreach NodeList Enumerator

Available enumerators: Foreach SMO Enumerator

SMO Enumerator: Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO.ForEachSMOEnumerator

SMO.EnumURN = RuntimeServer[@Variable='MachineName']/Server[@Name='localhost']/SMOEnumObj[@Name='Databases']/SMOEnumType[@Name='Names']

Vedere anche

Riferimento