DatabaseNotEnabledForNotificationException DatabaseNotEnabledForNotificationException DatabaseNotEnabledForNotificationException DatabaseNotEnabledForNotificationException Class

定义

在未启用 SQL Server 数据库以支持与 SqlCacheDependency 类关联的依赖项时引发的异常。The exception that is thrown when a SQL Server database is not enabled to support dependencies associated with the SqlCacheDependency class. 此类不能被继承。This class cannot be inherited.

public ref class DatabaseNotEnabledForNotificationException sealed : SystemException
[System.Serializable]
public sealed class DatabaseNotEnabledForNotificationException : SystemException
type DatabaseNotEnabledForNotificationException = class
    inherit SystemException
Public NotInheritable Class DatabaseNotEnabledForNotificationException
Inherits SystemException
继承
DatabaseNotEnabledForNotificationExceptionDatabaseNotEnabledForNotificationExceptionDatabaseNotEnabledForNotificationExceptionDatabaseNotEnabledForNotificationException
属性

示例

下面的代码示例是用于设置 SQL Server 数据库中的更改通知的简单的管理页面的异常处理程序。The following code example is an exception handler for a simple administration page for setting up change notification in a SQL Server database.

运行该示例所需的完整代码,请参阅示例部分SqlCacheDependencyAdmin类概述主题。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";
}
Catch ex As DatabaseNotEnabledForNotificationException
  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."
End Try

构造函数

DatabaseNotEnabledForNotificationException() DatabaseNotEnabledForNotificationException() DatabaseNotEnabledForNotificationException() DatabaseNotEnabledForNotificationException()

初始化 DatabaseNotEnabledForNotificationException 类的新实例。Initializes a new instance of the DatabaseNotEnabledForNotificationException class.

DatabaseNotEnabledForNotificationException(String) DatabaseNotEnabledForNotificationException(String) DatabaseNotEnabledForNotificationException(String) DatabaseNotEnabledForNotificationException(String)

初始化 DatabaseNotEnabledForNotificationException 类的新实例。Initializes a new instance of the DatabaseNotEnabledForNotificationException class.

DatabaseNotEnabledForNotificationException(String, Exception) DatabaseNotEnabledForNotificationException(String, Exception) DatabaseNotEnabledForNotificationException(String, Exception) DatabaseNotEnabledForNotificationException(String, Exception)

使用指定的错误消息和对作为此异常原因的内部异常的引用来初始化 DatabaseNotEnabledForNotificationException 类的新实例。Initializes a new instance of the DatabaseNotEnabledForNotificationException class with a specified error message and a reference to the inner exception that is the cause of this exception.

属性

Data Data Data Data

获取提供有关异常的其他用户定义信息的键/值对集合。Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception)
HelpLink HelpLink HelpLink HelpLink

获取或设置指向与此异常关联的帮助文件链接。Gets or sets a link to the help file associated with this exception.

(Inherited from Exception)
HResult HResult HResult HResult

获取或设置 HRESULT(一个分配给特定异常的编码数字值)。Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Inherited from Exception)
InnerException InnerException InnerException InnerException

获取导致当前异常的 Exception 实例。Gets the Exception instance that caused the current exception.

(Inherited from Exception)
Message Message Message Message

获取描述当前异常的消息。Gets a message that describes the current exception.

(Inherited from Exception)
Source Source Source Source

获取或设置导致错误的应用程序或对象的名称。Gets or sets the name of the application or the object that causes the error.

(Inherited from Exception)
StackTrace StackTrace StackTrace StackTrace

获取调用堆栈上的即时框架字符串表示形式。Gets a string representation of the immediate frames on the call stack.

(Inherited from Exception)
TargetSite TargetSite TargetSite TargetSite

获取引发当前异常的方法。Gets the method that throws the current exception.

(Inherited from Exception)

方法

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBaseException() GetBaseException() GetBaseException() GetBaseException()

当在派生类中重写时,返回 Exception,它是一个或多个并发的异常的根源。When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(Inherited from Exception)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext)

当在派生类中重写时,用关于异常的信息设置 SerializationInfoWhen overridden in a derived class, sets the SerializationInfo with information about the exception.

(Inherited from Exception)
GetType() GetType() GetType() GetType()

获取当前实例的运行时类型。Gets the runtime type of the current instance.

(Inherited from Exception)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

创建并返回当前异常的字符串表示形式。Creates and returns a string representation of the current exception.

(Inherited from Exception)

事件

SerializeObjectState SerializeObjectState SerializeObjectState SerializeObjectState

当异常被序列化用来创建包含有关该异常的徐列出数据的异常状态对象时会出现该问题。Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(Inherited from Exception)

适用于