VariableDispenser.GetQualifiedName(String) 方法

定义

命名空间:

Microsoft.SqlServer.Dts.Runtime

程序集:

Microsoft.SqlServer.ManagedDTS.dll

返回变量的限定名称。

public:
 System::String ^ GetQualifiedName(System::String ^ variable);

public string GetQualifiedName(string variable);

member this.GetQualifiedName : string -> string

Public Function GetQualifiedName (variable As String) As String

参数

variable

String

你想知道的变量名字是完全限定的。

返回

String

变量的限定名称，包括变量名称及其所属命名空间。

示例

以下代码示例创建了 ， VariableDispenser 并向锁定用于读取的列表添加了两个系统变量，以及一个锁定用于写入的系统变量。 然后调用 来 GetVariables 锁定集合中的三个变量。 变量的全限定名称 PackageName 通过使用 GetQualifiedName输出 。

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.GetVariables(ref vars);             
            // Verify that the variable is locked before unlocking.  
            Console.WriteLine("Variables are locked? {0}", vars.Locked);  
            foreach (Variable myVar in vars)  
            {  
                Console.WriteLine("Name        {0}", myVar.Name);  
                Console.WriteLine("Description {0}", myVar.Description);  
                Console.WriteLine();  
            }  
            // Use Contains to determine whether indexing can be used.  
            Boolean pkgName = variableDispenser.Contains("PackageName");  
            String qName = variableDispenser.GetQualifiedName("PackageName");  
            Console.WriteLine("Contains is valid?       {0}", pkgName);  
            Console.WriteLine("Fully qualified name is: {0}", qName);  

            vars.Unlock();  

            Console.WriteLine("Variables are locked? {0}", vars.Locked);  
        }  
    }  
}  

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.GetVariables( vars)  
            ' Verify that the variable is locked before unlocking.  
            Console.WriteLine("Variables are locked? {0}", vars.Locked)  
            Dim myVar As Variable  
            For Each myVar In vars  
                Console.WriteLine("Name        {0}", myVar.Name)  
                Console.WriteLine("Description {0}", myVar.Description)  
                Console.WriteLine()  
            Next  
            ' Use Contains to determine whether indexing can be used.  
            Dim pkgName As Boolean =  variableDispenser.Contains("PackageName")   
            Dim qName As String =  variableDispenser.GetQualifiedName("PackageName")   
            Console.WriteLine("Contains is valid?       {0}", pkgName)  
            Console.WriteLine("Fully qualified name is: {0}", qName)  

            vars.Unlock()  

            Console.WriteLine("Variables are locked? {0}", vars.Locked)  
        End Sub  
    End Class  
End Namespace  

示例输出：

Variables are locked? True

Name OfflineMode

Description The offline mode currently set for the package

Name PackageName

Description The package name

Contains is valid? True

Fully qualified name is: System::PackageName

Variables are locked? False

注解

该方法返回变量的全名，但不锁定变量。

如果 GetQualifiedName 调用该方法时仅使用变量名称且未指定命名空间，方法返回第一个匹配的条目。

如果该方法返回 DTS_E_AMBIGUOUSVARIABLENAME 了该方法，说明引用不明确，必须提供参数中的 variable 变量和命名空间。 当同名变量存在于不同命名空间时，就会发生这种错误。 指定命名空间可以让你找到正确的变量。