Configurations.Contains(Object) 方法

public:
 bool Contains(System::Object ^ index);

public bool Contains (object index);

member this.Contains : obj -> bool

Public Function Contains (index As Object) As Boolean

参数

返回

一个布尔值，指示是否可以按名称、标识、ID 或索引访问集合。 true 值指示可以使用语法配置[索引]访问集合。 false 值指示索引不能用于从 Configurations 集合中检索项;使用此属性引发异常。

示例

下面的代码示例使用 Contains 该方法查看项语法是否可用。

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

namespace Configurations_API  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            Package p = new Package();  

            Configuration conf1 = p.Configurations.Add();  
            conf1.ConfigurationString = "Conf1 Configuration String";  
            conf1.ConfigurationType = DTSConfigurationType.EnvVariable;  
            conf1.Description = "Some description for Conf1 configuration";  
            conf1.Name = "Conf1";  
            conf1.PackagePath = "A Variable Name in configuration Conf1";  

            Configuration conf2 = p.Configurations.Add();  
            conf2.ConfigurationString = "Conf2 Configuration String";  
            conf2.ConfigurationType = DTSConfigurationType.ConfigFile;  
            conf2.Description = "Some description for Conf2 configuration";  
            conf2.Name = "Conf2";  
            conf2.PackagePath = "A Variable Name in configuration Conf2";  

            Configuration conf3 = p.Configurations.Add();  
            conf3.ConfigurationString = "Conf3 Configuration String2";  
            conf3.ConfigurationType = DTSConfigurationType.RegEntry;  
            conf3.Description = "Conf3 description for Conf3 configuration2";  
            conf3.Name = "Conf3";  
            conf3.PackagePath = "A Variable Name in configuration Conf3";  

            // Use Contains to see if item syntax is available.  
            Boolean configContains = p.Configurations.Contains("Conf3");  

            if (configContains)  
            {  
                // Use the item syntax of Configurations[x].  
                String myName = p.Configurations[0].Name;  
                Console.WriteLine("Name of configuration at position 0 is {0}", myName);  
            }  
            else  
            {  
                Console.WriteLine("Contains returned {0}", configContains);  
            }  
            Console.WriteLine();  
        }  
    }  
}  

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

Namespace Configurations_API  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            Dim p As Package =  New Package()   

            Dim conf1 As Configuration =  p.Configurations.Add()   
            conf1.ConfigurationString = "Conf1 Configuration String"  
            conf1.ConfigurationType = DTSConfigurationType.EnvVariable  
            conf1.Description = "Some description for Conf1 configuration"  
            conf1.Name = "Conf1"  
            conf1.PackagePath = "A Variable Name in configuration Conf1"  

            Dim conf2 As Configuration =  p.Configurations.Add()   
            conf2.ConfigurationString = "Conf2 Configuration String"  
            conf2.ConfigurationType = DTSConfigurationType.ConfigFile  
            conf2.Description = "Some description for Conf2 configuration"  
            conf2.Name = "Conf2"  
            conf2.PackagePath = "A Variable Name in configuration Conf2"  

            Dim conf3 As Configuration =  p.Configurations.Add()   
            conf3.ConfigurationString = "Conf3 Configuration String2"  
            conf3.ConfigurationType = DTSConfigurationType.RegEnTry  
            conf3.Description = "Conf3 description for Conf3 configuration2"  
            conf3.Name = "Conf3"  
            conf3.PackagePath = "A Variable Name in configuration Conf3"  

            ' Use Contains to see if item syntax is available.  
            Dim configContains As Boolean =  p.Configurations.Contains("Conf3")   

            If configContains = True Then  
                ' Use the item syntax of Configurations[x].  
                Dim myName As String =  p.Configurations(0).Name   
                Console.WriteLine("Name of configuration at position 0 is {0}", myName)  
            Else   
                Console.WriteLine("Contains returned {0}", configContains)  
            End If  

            Console.WriteLine()  
        End Sub  
    End Class  
End Namespace  

示例输出：

位置 0 处的配置名称为 Conf1

适用于