TaskHost.SetExpression Method

아티클
12/15/2008

Assigns the specified expression to the property. Specify null to remove an existing expression from the property.

네임스페이스: Microsoft.SqlServer.Dts.Runtime
어셈블리: Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)

구문

‘선언
Public Sub SetExpression ( _
    propertyName As String, _
    expression As String _
)

public void SetExpression (
    string propertyName,
    string expression
)

public:
virtual void SetExpression (
    String^ propertyName, 
    String^ expression
) sealed

public final void SetExpression (
    String propertyName, 
    String expression
)

public final function SetExpression (
    propertyName : String, 
    expression : String
)

매개 변수

propertyName
The name of the property to which to assign the expression.

expression
The expression.

주의

The propertyName can be any property available on the object.

예

The following code example shows how to use the SetExpression and GetExpression methods of the TaskHost. For this code example, the hosted task is the BulkInsertTask.

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


namespace Microsoft.SqlServer.SSIS.Sample
{
    class Program
        {
        static void Main(string[] args)
        {
            Package pkg = new Package();
            TaskHost th = (TaskHost)pkg.Executables.Add("STOCK:BulkInsertTask");

            // View information about the CheckConstraints property
            // before setting it using the SetExpression method.
            Boolean checkConstraint = (Boolean)th.Properties["CheckConstraints"].GetValue(th);
            Console.WriteLine("Original value of CheckConstraints: {0}", checkConstraint);

            // Use SetExpression to set the value to true.
            String myTrueString = "true";
            th.Properties["CheckConstraints"].SetExpression(th, myTrueString);

            // Validate the package to set the expression onto the property.
            DTSExecResult valResult = pkg.Validate(null, null, null, null);

            // Retrieve the new value and the expression.
            checkConstraint = (Boolean)th.Properties["CheckConstraints"].GetValue(th);
            String myExpression = th.Properties["CheckConstraints"].GetExpression(th);
            Console.WriteLine("New value of CheckConstraints: {0}", checkConstraint);
            Console.WriteLine("Expression for CheckConstraints: {0}", myExpression);
        }
    }
}

Sample Output:

Original value of CheckConstraints: False

New value of CheckConstraints: True

Expression for CheckConstraints: true

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

TaskHost Class
TaskHost Members
Microsoft.SqlServer.Dts.Runtime Namespace

다음을 통해 공유