OracleConnectionStringBuilder.Item[String] Property

Reference

Definition

Namespace:: System.Data.OracleClient

Assembly:: System.Data.OracleClient.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets or sets the value associated with the specified key. In C#, this property is the indexer.

public:
 virtual property System::Object ^ default[System::String ^] { System::Object ^ get(System::String ^ keyword); void set(System::String ^ keyword, System::Object ^ value); };

public override object this[string keyword] { get; set; }

member this.Item(string) : obj with get, set

Default Public Overrides Property Item(keyword As String) As Object

Parameters

keyword: String

The key of the item to get or set.

Property Value

Object

The value associated with the specified key.

Exceptions

ArgumentNullException

keyword is a null reference (Nothing in Visual Basic).

KeyNotFoundException

Tried to add a key which does not exist within the available keys.

FormatException

Invalid value within the connection string (specifically, when a Boolean or numeric value was expected but not supplied).

Examples

The following code, in a console application, creates a new OracleConnectionStringBuilder and adds key/value pairs to its connection string, using the Item[] property.

// You may need to set a reference to the System.Data.OracleClient
// assembly before you can run this sample.
using System.Data.OracleClient;

class Program
{
    static void Main()
    {
        OracleConnectionStringBuilder builder =
            new OracleConnectionStringBuilder();
        builder["Data Source"] = "localhost";
        builder["integrated security"] = true;
        builder["Unicode"] = true;

        // Overwrite the existing value for the Data Source value.
        builder["Data Source"] = "NewOracleDemo";

        Console.WriteLine(builder.ConnectionString);
        Console.WriteLine();
        Console.WriteLine("Press Enter to continue.");
        Console.ReadLine();
    }
}

' You may need to set a reference to the System.Data.OracleClient
' assembly before you can run this sample.
Imports System.Data.OracleClient

Module Module1
  Sub Main()
    Dim builder As New OracleConnectionStringBuilder
    builder.Item("Data Source") = "OracleDemo"
    ' Item is the default property, so 
    ' you need not include it in the reference.
    builder("integrated security") = True
    builder.Item("Unicode") = True

    ' Overwrite the existing value for the Data Source value.
    builder.Item("Data Source") = "NewOracleDemo"

    Console.WriteLine(builder.ConnectionString)
    Console.WriteLine()
    Console.WriteLine("Press Enter to continue.")
    Console.ReadLine()
  End Sub
End Module

Remarks

Because the OracleConnectionStringBuilder contains a fixed-size dictionary, trying to add a key that does not exist within the dictionary throws a KeyNotFoundException. The following table lists all the possible keys within the connection string, and the default value for each.

Key	Property	Default value
Data Source (or server)	DataSource	Empty string
Persist Security Info (or persistsecurityinfo)	PersistSecurityInfo	False
Integrated Security	IntegratedSecurity	False
User ID (or user or uid)	UserID	Empty string
Password	Password	Empty string
Enlist	Enlist	True
Pooling	Pooling	True
Min Pool Size	MinPoolSize	0
Max Pool Size	MaxPoolSize	100
Omit Oracle Connection Name	OmitOracleConnectionName	False
Unicode	Unicode	False
Load Balance Timeout (or connection lifetime)	LoadBalanceTimeout	0

Applies to

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