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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.");

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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