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DatabaseNotEnabledForNotificationException Class

The exception that is thrown when a SQL Server database is not enabled to support dependencies associated with the SqlCacheDependency class. This class cannot be inherited.

Namespace:  System.Web.Caching
Assembly:  System.Web (in System.Web.dll)

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class DatabaseNotEnabledForNotificationException : SystemException

The following code example is an exception handler for a simple administration page for setting up change notification in a SQL Server database.

For the full code required to run the example, see the Example section of the SqlCacheDependencyAdmin class overview topic.

catch (DatabaseNotEnabledForNotificationException ex)
  enabledTables.Visible = false;
  disableTable.Visible = false;
  enabledTablesMsg.Text = "Cache notifications are not enabled in this database.";

  tableName.Visible = false;
  enableTable.Visible = false;
  tableEnableMsg.Text = "Must enable database for notifications before enabling tables";


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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