Sprache

Variables.Remove(Object) Methode

Definition

Entfernt ein Variable Objekt aus der Variables Auflistung.

public:
 void Remove(System::Object ^ index);
public void Remove(object index);
member this.Remove : obj -> unit
Public Sub Remove (index As Object)

Parameter

index
Object

Der Name, die ID, die Beschreibung oder der Index des Objekts, das Variable aus der Sammlung entfernt werden soll.

Beispiele

Das folgende Codebeispiel fügt einem leeren Paket eine Variable hinzu. Die Variable heißt myCustomVar, erhält den Wert 3 und befindet sich im Benutzernamensraum . Die Variable wird dann mit der Methode Remove entfernt.

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

namespace Add_Remove_Vars  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            Package pkg = new Package();  
            Variables pkgVars = pkg.Variables;  
            Variable myVar = pkg.Variables.Add("myCustomVar", false, "User", "3");  

            // Verify whether the variable is in the collection now.  
            Boolean hasMyVar = pkg.Variables.Contains("myCustomVar");  
            Console.WriteLine("The variable was found? {0}", hasMyVar);  

            Console.WriteLine("---------------------------");  
            // Loop over the collection using the foreach keyword.  
            foreach (Variable pkgVar in pkgVars)  
            {  
                // Print variables only from the User namespace.  
                if (pkgVar.Namespace == "User")  
                {  
                Console.WriteLine("Variable: {0}, {1}", pkgVar.Name, pkgVar.Value.ToString());  
                 }  
            }  
            Console.WriteLine("---------------------------");  
            // Remove the variable from the namespace.  
            pkg.Variables.Remove("myCustomVar");  

            // Loop over the collection again.  
            foreach (Variable pkgVar in pkgVars)  
            {  
                // Print variables only from the User namespace. Nothing should show.  
                if (pkgVar.Namespace == "User")  
                {  
                    Console.WriteLine("Variable: {0}, {1}", pkgVar.Name, pkgVar.Value.ToString());  
                }  
            }  
            Console.WriteLine("---------------------------");  
            Console.WriteLine("");  
        }  
    }  
}  
Imports System  
Imports System.Collections.Generic  
Imports System.Text  
Imports Microsoft.SqlServer.Dts.Runtime  

Namespace Add_Remove_Vars  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            Dim pkg As Package =  New Package()   
            Dim pkgVars As Variables =  pkg.Variables   
            Dim myVar As Variable =  pkg.Variables.Add("myCustomVar",False,"User","3")   

            ' Verify whether the variable is in the collection now.  
            Dim hasMyVar As Boolean =  pkg.Variables.Contains("myCustomVar")   
            Console.WriteLine("The variable was found? {0}", hasMyVar)  

            Console.WriteLine("---------------------------")  
            ' Loop over the collection using the foreach keyword.  
            Dim pkgVar As Variable  
            For Each pkgVar In pkgVars  
                ' Print variables only from the User namespace.  
                If pkgVar.Namespace = "User" Then  
                Console.WriteLine("Variable: {0}, {1}", pkgVar.Name, pkgVar.Value.ToString())  
                End If  
            Next  
            Console.WriteLine("---------------------------")  
            ' Remove the variable from the namespace.  
            pkg.Variables.Remove("myCustomVar")  

            ' Loop over the collection again.  
            Dim pkgVar As Variable  
            For Each pkgVar In pkgVars  
                ' Print variables only from the User namespace. Nothing should show.  
                If pkgVar.Namespace = "User" Then  
                    Console.WriteLine("Variable: {0}, {1}", pkgVar.Name, pkgVar.Value.ToString())  
                End If  
            Next  
            Console.WriteLine("---------------------------")  
            Console.WriteLine("")  
        End Sub  
    End Class  
End Namespace  

Beispielausgabe:

Die Variable wurde gefunden? True

---------------------------

Variable: myCustomVar, 3

---------------------------

---------------------------

Gilt für: