ConfigurationSectionGroupCollection.Item[] 属性

定义

命名空间:

System.Configuration

程序集:

System.Configuration.ConfigurationManager.dll

包:

System.Configuration.ConfigurationManager v8.0.0

获取或设置此 ConfigurationSectionGroup 对象中包含的 ConfigurationSectionGroupCollection 对象。

重载

Item[Int32]	获取 ConfigurationSectionGroup 对象，该对象的索引从集合中指定。
Item[String]	获取 ConfigurationSectionGroup 对象，该对象的名称从集合中指定。

示例

以下示例演示如何使用 Item[] 属性循环访问 ConfigurationSectionGroupCollection。

static void ShowSectionGroupCollectionInfo(ConfigurationSectionGroupCollection mySectionGroupCollection)
{
    foreach (String mySectionGroupName in mySectionGroupCollection.Keys)
    {
        ConfigurationSectionGroup mySectionGroup = 
            (ConfigurationSectionGroup)mySectionGroupCollection[mySectionGroupName];
        ShowSectionGroupInfo(mySectionGroup);
    }
}

Shared Sub ShowSectionGroupCollectionInfo(mySectionGroupCollection As System.Configuration.ConfigurationSectionGroupCollection)
    Dim mySectionGroupName As String
    For Each mySectionGroupName In  mySectionGroupCollection.Keys
        Dim mySectionGroup As System.Configuration.ConfigurationSectionGroup = CType(mySectionGroupCollection(mySectionGroupName), System.Configuration.ConfigurationSectionGroup)
        ShowSectionGroupInfo(mySectionGroup)
    Next mySectionGroupName
End Sub

Item[Int32]

Source:

ConfigurationSectionGroupCollection.cs

获取 ConfigurationSectionGroup 对象，该对象的索引从集合中指定。

public:
 property System::Configuration::ConfigurationSectionGroup ^ default[int] { System::Configuration::ConfigurationSectionGroup ^ get(int index); };

public System.Configuration.ConfigurationSectionGroup this[int index] { get; }

member this.Item(int) : System.Configuration.ConfigurationSectionGroup

Default Public ReadOnly Property Item(index As Integer) As ConfigurationSectionGroup

参数

index

Int32

要返回的 ConfigurationSectionGroup 对象的索引。

属性值

ConfigurationSectionGroup

指定索引处的 ConfigurationSectionGroup 对象。

在 C# 中，此属性是 ConfigurationSectionCollection 类的索引器。

Item[String]

Source:

ConfigurationSectionGroupCollection.cs

获取 ConfigurationSectionGroup 对象，该对象的名称从集合中指定。

public:
 property System::Configuration::ConfigurationSectionGroup ^ default[System::String ^] { System::Configuration::ConfigurationSectionGroup ^ get(System::String ^ name); };

public System.Configuration.ConfigurationSectionGroup this[string name] { get; }

member this.Item(string) : System.Configuration.ConfigurationSectionGroup

Default Public ReadOnly Property Item(name As String) As ConfigurationSectionGroup

参数

name

String

要返回的 ConfigurationSectionGroup 对象名称。

属性值

ConfigurationSectionGroup

具有指定名称的 ConfigurationSectionGroup 对象。

在 C# 中，此属性是 ConfigurationSectionCollection 类的索引器。

示例

下面的代码示例说明如何使用 Item[] 属性。

static void GetItems()
{

    try
    {
        System.Configuration.Configuration config =
         ConfigurationManager.OpenExeConfiguration(
         ConfigurationUserLevel.None);

        ConfigurationSectionGroupCollection groups =
            config.SectionGroups;

        ConfigurationSectionGroup group1 =
            groups.Get("system.net");

        ConfigurationSectionGroup group2 =
        groups.Get("system.web");

        Console.WriteLine(
             "Group1: {0}", group1.Name);

        Console.WriteLine(
            "Group2: {0}", group2.Name);
    }
    catch (ConfigurationErrorsException err)
    {
        Console.WriteLine(err.ToString());
    }
}

Shared Sub GetItems()
   
   Try
         Dim config _
     As System.Configuration.Configuration = _
     ConfigurationManager.OpenExeConfiguration( _
     ConfigurationUserLevel.None)

         Dim groups _
         As ConfigurationSectionGroupCollection = _
         config.SectionGroups

         Dim group1 As ConfigurationSectionGroup = _
         groups.Get("system.net")
      
         Dim group2 As ConfigurationSectionGroup = _
         groups.Get("system.web")
      
      
      Console.WriteLine("Group1: {0}", group1.Name)
      
      Console.WriteLine("Group2: {0}", group2.Name)
   
   Catch err As ConfigurationErrorsException
      Console.WriteLine(err.ToString())
   End Try
End Sub

另请参阅

• ConfigurationSectionGroup
• ConfigurationSectionCollection
• ConfigurationSection