ConnectionStringSettingsCollection.IndexOf(ConnectionStringSettings) 方法

定義

命名空間:

System.Configuration

組件:

System.Configuration.ConfigurationManager.dll

套件:

System.Configuration.ConfigurationManager v8.0.0

來源:

ConnectionStringSettingsCollection.cs

傳回已傳遞之 ConnectionStringSettings 物件的集合索引。

public:
 int IndexOf(System::Configuration::ConnectionStringSettings ^ settings);

public int IndexOf (System.Configuration.ConnectionStringSettings settings);

member this.IndexOf : System.Configuration.ConnectionStringSettings -> int

Public Function IndexOf (settings As ConnectionStringSettings) As Integer

參數

settings

ConnectionStringSettings

集合中的 ConnectionStringSettings 物件。

傳回

Int32

指定之 ConnectionStringSettingsCollection 物件的集合索引。

範例

下列範例示範如何取得指定 ConnectionStringSettings 物件的索引。

static void GetIndex()
{

    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"];

        // Get its index;
        int index = csCollection.IndexOf(cs);

        Console.WriteLine(
             "Connection string settings index: {0}", 
             index.ToString());
    }
    catch (ConfigurationErrorsException err)
    {
        Console.WriteLine(err.ToString());
    }
}

Shared Sub GetIndex() 
    
    Try
        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")
        
        ' Get its index;
        Dim index As Integer = _
        csCollection.IndexOf(cs)
        
        Console.WriteLine( _
        "Connection string settings index: {0}", _
        index.ToString())
    
    Catch err As ConfigurationErrorsException
        Console.WriteLine(err.ToString())
    End Try

End Sub

另請參閱

• ConnectionStringsSection