ConnectionStringSettingsCollection 类
定义
重要
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包含 ConnectionStringSettings 对象的集合。
public ref class ConnectionStringSettingsCollection sealed : System::Configuration::ConfigurationElementCollection
[System.Configuration.ConfigurationCollection(typeof(System.Configuration.ConnectionStringSettings))]
public sealed class ConnectionStringSettingsCollection : System.Configuration.ConfigurationElementCollection
[<System.Configuration.ConfigurationCollection(typeof(System.Configuration.ConnectionStringSettings))>]
type ConnectionStringSettingsCollection = class
inherit ConfigurationElementCollection
Public NotInheritable Class ConnectionStringSettingsCollection
Inherits ConfigurationElementCollection
- 继承
- 属性
示例
以下示例演示如何访问 ConnectionStringSettingsCollection。
static void ShowConnectionStrings()
{
// Get the application configuration file.
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
// Get the conectionStrings section.
ConnectionStringsSection csSection =
config.ConnectionStrings;
for (int i = 0; i <
ConfigurationManager.ConnectionStrings.Count; i++)
{
ConnectionStringSettings cs =
csSection.ConnectionStrings[i];
Console.WriteLine(" Connection String: \"{0}\"",
cs.ConnectionString);
Console.WriteLine("#{0}", i);
Console.WriteLine(" Name: {0}", cs.Name);
Console.WriteLine(" Provider Name: {0}",
cs.ProviderName);
}
}
Shared Sub ShowConnectionStrings()
' Get the application configuration file.
Dim config _
As System.Configuration.Configuration = _
ConfigurationManager.OpenExeConfiguration( _
ConfigurationUserLevel.None)
' Get the conectionStrings section.
Dim csSection _
As ConnectionStringsSection = _
config.ConnectionStrings
For i As Integer = 0 To ConfigurationManager.ConnectionStrings.Count - 1
Dim cs As ConnectionStringSettings = _
csSection.ConnectionStrings(i)
Console.WriteLine( _
" Connection String: ""{0}""", cs.ConnectionString)
Console.WriteLine("#{0}", i)
Console.WriteLine(" Name: {0}", cs.Name)
Console.WriteLine( _
" Provider Name: {0}", cs.ProviderName)
Next i
End Sub
以下示例是上一示例使用的配置文件的摘录。
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<connectionStrings>
<add name="ConnStr1" connectionString="LocalSqlServer: data source=127.0.0.1;Integrated Security=SSPI;Initial Catalog=aspnetdb"
providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
注解
对象 ConnectionStringSettingsCollection 包含 对象的集合 ConnectionStringSettings 。 每个 ConnectionStringSettings 对象表示配置文件部分中的 <connectionStrings>
单个条目。
构造函数
ConnectionStringSettingsCollection() |
初始化 ConnectionStringSettingsCollection 类的新实例。 |
属性
方法
显式接口实现
ICollection.CopyTo(Array, Int32) |
将 ConfigurationElementCollection 复制到数组。 (继承自 ConfigurationElementCollection) |
扩展方法
Cast<TResult>(IEnumerable) |
将 IEnumerable 的元素强制转换为指定的类型。 |
OfType<TResult>(IEnumerable) |
根据指定类型筛选 IEnumerable 的元素。 |
AsParallel(IEnumerable) |
启用查询的并行化。 |
AsQueryable(IEnumerable) |
将 IEnumerable 转换为 IQueryable。 |
适用于
另请参阅
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