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SqlConnectionStringBuilder.MultipleActiveResultSets Property

Gets or sets a Boolean value that indicates whether multiple active result sets can be associated with the associated connection.

Namespace:  System.Data.SqlClient
Assembly:  System.Data (in System.Data.dll)

public bool MultipleActiveResultSets { get; set; }

Property Value

Type: System.Boolean
The value of the MultipleActiveResultSets property, or false if none has been supplied.

This property corresponds to the "MultipleActiveResultSets" key within the connection string. This setting only has an effect when used with SQL Server 2005 or a later version.

The following example explicitly disables the Multiple Active Result Sets feature that is available when programming against SQL Server 2005.

using System.Data.SqlClient;

class Program
    static void Main()
        SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
        builder.DataSource = "(local)";
        builder.IntegratedSecurity = true;
        builder.InitialCatalog = "AdventureWorks";

        // The connection does not allow multiple active result sets 
        // by default, so this line of code explicitly 
        // enables this feature. Note that this feature is  
        // only available when programming against SQL Server 2005 
        // or later.
        builder.MultipleActiveResultSets = true;


        Console.WriteLine("Press Enter to continue.");

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0