ConnectionStringSettingsCollection.Item[] 属性
定义
重要
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获取或设置集合中的 ConnectionStringSettings 对象。
重载
| Item[Int32] |
获取或设置位于集合中指定索引处的连接字符串。 |
| Item[String] |
获取或设置集合中具有指定名称的 ConnectionStringSettings 对象。 |
Item[Int32]
获取或设置位于集合中指定索引处的连接字符串。
public:
property System::Configuration::ConnectionStringSettings ^ default[int] { System::Configuration::ConnectionStringSettings ^ get(int index); void set(int index, System::Configuration::ConnectionStringSettings ^ value); };public System.Configuration.ConnectionStringSettings this[int index] { get; set; }member this.Item(int) : System.Configuration.ConnectionStringSettings with get, setDefault Public Property Item(index As Integer) As ConnectionStringSettings参数
- index
- Int32
集合中 ConnectionStringSettings 对象的索引。
属性值
指定索引处的 ConnectionStringSettings 对象。
示例
以下示例演示如何访问 ConnectionStringSettings 集合中给定索引处 ConnectionStringSettingsCollection 的 对象。
static void GetItems()
{
try
{
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
// Clear the connection strings collection.
ConnectionStringsSection csSection =
config.ConnectionStrings;
ConnectionStringSettingsCollection csCollection =
csSection.ConnectionStrings;
// Get the connection string setting element
// with the specified index.
ConnectionStringSettings cs =
csCollection[0];
Console.WriteLine(
"cs: {0}", cs.Name);
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine(err.ToString());
}
}
Shared Sub GetItems()
Try
' Get the application configuration file.
Dim config _
As System.Configuration.Configuration = _
ConfigurationManager.OpenExeConfiguration( _
ConfigurationUserLevel.None)
' Clear the connection strings collection.
Dim csSection _
As ConnectionStringsSection = _
config.ConnectionStrings
Dim csCollection _
As ConnectionStringSettingsCollection = _
csSection.ConnectionStrings
' Get the connection string setting element
' with the specified index.
Dim cs _
As ConnectionStringSettings = _
csCollection(0)
Console.WriteLine("cs: {0}", cs.Name)
Catch err As ConfigurationErrorsException
Console.WriteLine(err.ToString())
End Try
End Sub
注解
在 C# 中，此属性是 ConnectionStringSettingsCollection 类的索引器。
另请参阅
适用于
Item[String]
获取或设置集合中具有指定名称的 ConnectionStringSettings 对象。
public:
property System::Configuration::ConnectionStringSettings ^ default[System::String ^] { System::Configuration::ConnectionStringSettings ^ get(System::String ^ name); };public System.Configuration.ConnectionStringSettings this[string name] { get; }member this.Item(string) : System.Configuration.ConnectionStringSettingsDefault Public ReadOnly Property Item(name As String) As ConnectionStringSettings参数
- name
- String
集合中 ConnectionStringSettings 对象的名称。
属性值
具有指定名称的 ConnectionStringSettings 对象；否则为 null。
示例
以下示例演示如何访问集合中的ConnectionStringSettingsCollection命名ConnectionStringSettings对象。
static void GetItems2()
{
try
{
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
// Clear the connection strings collection.
ConnectionStringsSection csSection =
config.ConnectionStrings;
ConnectionStringSettingsCollection csCollection =
csSection.ConnectionStrings;
// Get the connection string setting element
// with the specified name.
ConnectionStringSettings cs =
csCollection["ConnStr0"];
Console.WriteLine(
"cs: {0}", cs.Name);
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine(err.ToString());
}
}
Shared Sub GetItems2()
Try
' Get the application configuration file.
Dim config _
As System.Configuration.Configuration = _
ConfigurationManager.OpenExeConfiguration( _
ConfigurationUserLevel.None)
' Clear the connection strings collection.
Dim csSection _
As ConnectionStringsSection = _
config.ConnectionStrings
Dim csCollection _
As ConnectionStringSettingsCollection = _
csSection.ConnectionStrings
' Get the connection string setting element
' with the specified name.
Dim cs _
As ConnectionStringSettings = _
csCollection("ConnStr0")
Console.WriteLine("cs: {0}", cs.Name)
Catch err As ConfigurationErrorsException
Console.WriteLine(err.ToString())
End Try
End Sub
注解
在 C# 中，此属性是 ConnectionStringSettingsCollection 类的索引器。
