Variables.Locked 속성

A Boolean indicating whether the variables in the Variables collection are locked.

네임스페이스:  Microsoft.SqlServer.Dts.Runtime
어셈블리:  Microsoft.SqlServer.ManagedDTS(Microsoft.SqlServer.ManagedDTS.dll)

구문

‘선언
Public ReadOnly Property Locked As Boolean 
    Get
‘사용 방법
Dim instance As Variables 
Dim value As Boolean 

value = instance.Locked

public bool Locked { get; }

public:
property bool Locked {
    bool get ();
}

member Locked : bool

function get Locked () : boolean

속성 값

유형: System.Boolean
true indicates that the collection is locked. A value of false indicates that the collection is unlocked.

주의

The Variables collection contains a Locked property that indicates whether a variable dispenser collection of variables is locked (true) or unlocked (false). The reason to review this property is that some tasks explicitly release locks to the variables they are using, and calling Unlock twice throws an error. Therefore, you should use Locked property determine whether the dispensed collection is locked before calling Unlock.

예

The following code example locks the variable collection when GetVariables is called. The example then determines whether the collection is locked and, if the collection is locked, calls Unlock.

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

namespace Microsoft.SqlServer.SSIS.Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            Package pkg = new Package();
            Variables vars = null;
            VariableDispenser variableDispenser = pkg.VariableDispenser;
            variableDispenser.LockForRead("System::PackageName");
            variableDispenser.LockForRead("System::OfflineMode");
            variableDispenser.LockForWrite("System::InteractiveMode");
            variableDispenser.GetVariables(ref vars);           
            // Determine whether the variable collection is locked before unlocking.
            Boolean isLocked = vars.Locked;

            // Verify the value of vars.Locked. If the lock failed,
            // call Reset.
            if (isLocked)
            {
                vars.Unlock();
            }
            else
            {
                variableDispenser.Reset();
            }
        }
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
 
Namespace Microsoft.SqlServer.SSIS.Sample
    Class Program
        Shared  Sub Main(ByVal args() As String)
            Dim pkg As Package =  New Package() 
            Dim vars As Variables =  Nothing 
            Dim variableDispenser As VariableDispenser =  pkg.VariableDispenser 
            variableDispenser.LockForRead("System::PackageName")
            variableDispenser.LockForRead("System::OfflineMode")
            variableDispenser.LockForWrite("System::InteractiveMode")
            variableDispenser.GetVariables( vars)
            ' Determine whether the variable collection is locked before unlocking.
            Dim isLocked As Boolean =  vars.Locked 
 
            ' Verify the value of vars.Locked. If the lock failed,
            ' call Reset.
            If isLocked = True Then
                vars.Unlock()
            Else 
                variableDispenser.Reset()
            End If
        End Sub
    End Class
End Namespace

참고 항목

참조

Variables 클래스

Microsoft.SqlServer.Dts.Runtime 네임스페이스