ConnectionManager.ConnectionString Proprietà

public:
 property System::String ^ ConnectionString { System::String ^ get(); void set(System::String ^ value); };

[Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyDescription(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "ConnectionStringDesc")]
[System.ComponentModel.RefreshProperties(System.ComponentModel.RefreshProperties.All)]
public string ConnectionString { get; set; }

[<Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyDescription(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "ConnectionStringDesc")>]
[<System.ComponentModel.RefreshProperties(System.ComponentModel.RefreshProperties.All)>]
member this.ConnectionString : string with get, set

Public Property ConnectionString As String

Valore della proprietà

Stringa contenente il valore della stringa di connessione.

Attributi

LocalizablePropertyDescriptionAttribute RefreshPropertiesAttribute

Esempio

Nell'esempio di codice seguente viene creato un oggetto FileSystemTask come Executable in un pacchetto. Copia FileSystemTask una cartella di test contenente due sottocartelle e un file di .txt in un'altra cartella. L'origine e le destinazioni sono cartelle esistenti. Pertanto, l'oggetto IsDestinationPathVariable e IsSourcePathVariable sono impostate su falsee le Destination proprietà e Source sono impostate su due gestioni connessione FILE create e che hanno avuto le stringhe di connessione impostate su riferimento Strings contenenti i percorsi.

using System;  
using System.Collections.Generic;  
using System.Text;  
using Microsoft.SqlServer.Dts.Runtime;  
using Microsoft.SqlServer.Dts.Tasks.FileSystemTask;  

namespace FileSystemTask_API  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            String sourceDir = @"C:\TestFolder";  
            String destDir = @"C:\MyNewTestFolder";  

            Package pkg = new Package();  
            Executable exec1 = pkg.Executables.Add("STOCK:FileSystemTask");  
            TaskHost th = exec1 as TaskHost;  

            // Show how to set properties using the TaskHost  
             // Properties. Set the properties to copy an existing  
             // folder, which contains two subfolders and a .txt file,  
            // to another existing folder on the C:\ drive.  

            // The source or destination files are not in a variable,  
            // so set IsSourcePathVariable and   
            // IsDestinationPathVariable to false.  
            th.Properties["IsSourcePathVariable"].SetValue(th, false);  
            th.Properties["IsDestinationPathVariable"].SetValue(th, false);  

            // Create the File connection manager for the source.  
            ConnectionManager cm = pkg.Connections.Add("FILE");  
            cm.Name = "The FILE connection manager";  
            cm.ConnectionString = sourceDir;  
            cm.Properties["FileUsageType"].SetValue(cm, DTSFileConnectionUsageType.FolderExists);  

            // Create the File connection manager for the destination.  
            ConnectionManager cmdest = pkg.Connections.Add("FILE");  
            cmdest.Name = "The destination FILE connection manager";  
            cmdest.ConnectionString = destDir;  
            cmdest.Properties["FileUsageType"].SetValue(cmdest, DTSFileConnectionUsageType.FolderExists);  

            // Set the source property and destination properties  
            // for the task.  
            th.Properties["Source"].SetValue(th, cm.Name);  
            th.Properties["Destination"].SetValue(th, cmdest.Name);  

            // The operation to perform is to copy all the files and  
             // subfolders in a folder.  
            // Do not overwrite the destination information   
            // if it exists.  
            th.Properties["Operation"].SetValue(th, DTSFileSystemOperation.CopyDirectory);  
            th.Properties["OperationName"].SetValue(th, "Copy TestFolder");  
            th.Properties["OverwriteDestinationFile"].SetValue(th, false);  

            // Set the attribute of the folder to be read-only.  
            th.Properties["Attributes"].SetValue(th, DTSFileSystemAttributes.ReadOnly);  
            // Multiple attributes can be set. The next line of code,  
            // commented out, shows how to do that.  
            //th.Properties["Attributes"].SetValue(th, DTSFileSystemAttributes.ReadOnly | DTSFileSystemAttributes.Hidden);  

            // Run the task and copy the folder.  
            DTSExecResult result = pkg.Execute();  
        }  
    }  
}  

Imports System  
Imports System.Collections.Generic  
Imports System.Text  
Imports Microsoft.SqlServer.Dts.Runtime  
Imports Microsoft.SqlServer.Dts.Tasks.FileSystemTask  

Namespace FileSystemTask_API  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            Dim sourceDir As String =  "C:\TestFolder"   
            Dim destDir As String =  "C:\MyNewTestFolder"   

            Dim pkg As Package =  New Package()   
            Dim exec1 As Executable =  pkg.Executables.Add("STOCK:FileSystemTask")   
            Dim th As TaskHost =  exec1 as TaskHost   

            ' Show how to set properties using the TaskHost Properties.  
            ' Set the properties to copy an existing folder, which contains two subfolders  
            ' and a .txt file, to another existing folder on the C:\ drive.  

            ' The source or destination files are not in a variable, so set   
            ' IsSourcePathVariable and IsDestinationPathVariable to false.  
            th.Properties("IsSourcePathVariable").SetValue(th, False)  
            th.Properties("IsDestinationPathVariable").SetValue(th, False)  

            ' Create the File connection manager for the source.  
            Dim cm As ConnectionManager =  pkg.Connections.Add("FILE")   
            cm.Name = "The FILE connection manager"  
            cm.ConnectionString = sourceDir  
            cm.Properties("FileUsageType").SetValue(cm, DTSFileConnectionUsageType.FolderExists)  

            ' Create the File connection manager for the destination.  
            Dim cmdest As ConnectionManager =  pkg.Connections.Add("FILE")   
            cmdest.Name = "The destination FILE connection manager"  
            cmdest.ConnectionString = destDir  
            cmdest.Properties("FileUsageType").SetValue(cmdest, DTSFileConnectionUsageType.FolderExists)  

            ' Set the source property and destination properties  
            ' for the task.  
            th.Properties("Source").SetValue(th, cm.Name)  
            th.Properties("Destination").SetValue(th, cmdest.Name)  

            ' The operation to perform is to copy all the files and  
             ' subfolders in a folder.  
            ' Do not overwrite the destination information   
            ' if it exists.  
            th.Properties("Operation").SetValue(th, DTSFileSystemOperation.CopyDirectory)  
            th.Properties("OperationName").SetValue(th, "Copy TestFolder")  
            th.Properties("OverwriteDestinationFile").SetValue(th, False)  

            ' Set the attribute of the folder to be read-only.  
            th.Properties("Attributes").SetValue(th, DTSFileSystemAttributes.ReadOnly)  
            ' Multiple attributes can be set. The next line of code,  
            ' commented out, shows how to do that.  
            'th.Properties["Attributes"].SetValue(th, DTSFileSystemAttributes.ReadOnly | DTSFileSystemAttributes.Hidden);  

            ' Run the task and copy the folder.  
            Dim result As DTSExecResult =  pkg.Execute()   
        End Sub  
    End Class  
End Namespace  

Commenti

Il formato e il contenuto della stringa di connessione dipendono dal provider di dati, dall'origine dati e dal tipo di gestione connessione che viene creato. Per visualizzare una stringa di connessione di esempio, in SQL Server Data Tools creare un pacchetto e quindi creare una gestione connessione del tipo appropriato all'interno di tale pacchetto. Successivamente, nella Finestra Proprietà esaminare la ConnectionString proprietà della gestione connessione appena creata.

Nell'esempio di codice seguente viene aggiunta una gestione connessione OLE DB e quindi viene impostato il nome della gestione connessione e le proprietà della stringa di connessione.

// Add the OLE DB connection manager.  
ConnectionManager adventureWorks = package.Connections.Add("OLEDB");  
// Set stock properties.  
adventureWorks.Name = "OLEDBConnection";  
adventureWorks.ConnectionString = @"Provider=SQLNCLI10;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=AdventureWorks;Data Source=(local);Auto Translate=False;";  

' Add the OLE DB connection manager.  
Dim adventureWorks As ConnectionManager =  package.Connections.Add("OLEDB")   
' Set stock properties.  
adventureWorks.Name = "OLEDBConnection"  
adventureWorks.ConnectionString = "Provider=SQLNCLI10;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=AdventureWorks;Data Source=(local);Auto Translate=False;"  

Per una stringa di connessione XML, il valore della stringa di connessione viene formattato in modo simile al seguente:

String myConnString = @"C:\Program Files\Microsoft SQL Server\orders.xml";

Mentre per una connessione OLE DB, la stringa di connessione contiene valori simili alla stringa di connessione seguente:

String myConnString = "Server=MYSERVER;Provider=SQLOLEDB.1;Pwd= xxxxxxx;User ID= xxxxx;Initial Catalog=mySource;OLE DB Services=-2";

E una stringa di connessione ODBC può essere simile alla seguente:

String myConnString = "DSN=LocalServer;DATABASE=MySource;PWD=xxxxxxx;UID=xxxxx";

Nella finestra di dialogo proprietà di una connessione nella Designer SSIS questo valore viene visualizzato come proprietà String di connessione.

Per un elenco di tutte le gestioni connessioni incluse nel prodotto, vedere Connessioni SSIS (Integration Services).

Si applica a