Propriedade do RDL ForEachEnumeratorHost.CollectionEnumerator
Gets or sets a Boolean that indicates if the hosting enumerator is enumerating collections of objects or enumerating collections of collections.
Namespace: Microsoft.SqlServer.Dts.Runtime
Assembly: Microsoft.SqlServer.ManagedDTS (em Microsoft.SqlServer.ManagedDTS.dll)
Sintaxe
'Declaração
Public Property CollectionEnumerator As Boolean
Get
Set
'Uso
Dim instance As ForEachEnumeratorHost
Dim value As Boolean
value = instance.CollectionEnumerator
instance.CollectionEnumerator = value
public bool CollectionEnumerator { get; set; }
public:
virtual property bool CollectionEnumerator {
bool get () sealed;
void set (bool value) sealed;
}
abstract CollectionEnumerator : bool with get, set
override CollectionEnumerator : bool with get, set
final function get CollectionEnumerator () : boolean
final function set CollectionEnumerator (value : boolean)
Valor da propriedade
Tipo: System.Boolean
A Boolean that indicates what the enumerator is iterating over.
Implementa
IDTSForEachEnumerator.CollectionEnumerator
Comentários
true indicates that the enumerator is iterating over a collection of collections. If false, the enumerator is iterating over a collection of objects.
Exemplos
The following code example creates a ForEachEnumeratorHost to hold a ForEachSMOEnumerator enumerator, and displays the host properties.
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.Sample
{
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);
if (enumInfo.Name == EnumType.SMOEnum)
{
// Set the ForEachEnumeratorInfo variable
// to the SMo enumerator, and use it
// later in the CreateNew method.
info = enumInfo;
}
}
ForEachEnumeratorHost enumH = info.CreateNew();
Console.WriteLine();
Console.WriteLine("Host InnerObject: " + enumH.InnerObject.ToString());
Console.WriteLine("CollectionEnumerator? {0}", enumH.CollectionEnumerator);
Console.WriteLine("CreationName: {0}", enumH.CreationName);
Console.WriteLine("Description: {0}", enumH.Description);
Console.WriteLine("Value of DelayValidation: {0}", enumH.DelayValidation);
Console.WriteLine("HostType: {0}", enumH.HostType);
Console.WriteLine("ID: {0}", enumH.ID);
Console.WriteLine("Name: {0}", enumH.Name);
}
}
}
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.Sample
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
For Each enumInfo In infos
Console.Write("Available enumerators: {0}\n", enumInfo.Name)
If enumInfo.Name = EnumType.SMOEnum Then
' Set the ForEachEnumeratorInfo variable
' to the SMo enumerator, and use it
' later in the CreateNew method.
info = enumInfo
End If
Next
Dim enumH As ForEachEnumeratorHost = info.CreateNew()
Console.WriteLine()
Console.WriteLine("Host InnerObject: " + enumH.InnerObject.ToString())
Console.WriteLine("CollectionEnumerator? {0}", enumH.CollectionEnumerator)
Console.WriteLine("CreationName: {0}", enumH.CreationName)
Console.WriteLine("Description: {0}", enumH.Description)
Console.WriteLine("Value of DelayValidation: {0}", enumH.DelayValidation)
Console.WriteLine("HostType: {0}", enumH.HostType)
Console.WriteLine("ID: {0}", enumH.ID)
Console.WriteLine("Name: {0}", enumH.Name)
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
Host InnerObject: Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO.ForEachSMOEnumerator
CollectionEnumerator? False
CreationName: Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO.ForEachSMOEnumerator, Microsoft.SqlServer.ForEachSMOEnumerator, Version=10.0.000.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
Description:
Value of DelayValidation: False
HostType: ForEachEnumerator
ID: {C91BA4D0-6AD4-4BEE-A7C4-9A737880773E}
Name: {C91BA4D0-6AD4-4BEE-A7C4-9A737880773E}