Enum SqlNotificationType Path C++ Link System.Data.SqlClient.SqlNotificationType, System.Data underlying int32 System.Data Values 3 NameValueHex Change00x00Subscribe10x01Unknown-10xFFFFFFFFFFFFFFFF // System.Data.SqlClient.SqlNotificationType, System.Data enum class SqlNotificationType : int32 { Change = 0, Subscribe = 1, Unknown = -1, };