Интерфейс IDbCommand

Статья
04/28/2013

Represents a statement that is executed while an open connection to a data source exists.

Пространство имен: Microsoft.ReportingServices.DataProcessing
Сборки: Microsoft.ReportingServices.Interfaces (в Microsoft.ReportingServices.Interfaces.dll)
Microsoft.ReportingServices.SharePoint.UI.WebParts (в Microsoft.ReportingServices.SharePoint.UI.WebParts.dll)

Синтаксис

'Декларация
Public Interface IDbCommand _
    Inherits IDisposable
'Применение
Dim instance As IDbCommand

public interface IDbCommand : IDisposable

public interface class IDbCommand : IDisposable

type IDbCommand =  
    interface 
        interface IDisposable 
    end

public interface IDbCommand extends IDisposable

Тип IDbCommand обеспечивает доступ к следующим элементам.

Свойства

	Имя	Описание
	CommandText	Gets or sets the text command to run against the data source.
	CommandTimeout	Gets or sets the wait time before terminating the attempt to execute a command and generating an error.
	CommandType	Indicates or specifies how the CommandText property is interpreted (as text, a stored procedure, etc.).
	Parameters	Gets the IDataParameterCollection.
	Transaction	Gets or sets the transaction in which the Command object of a SQL Server Reporting Services data provider executes.

В начало

Методы

	Имя	Описание
	Cancel	Attempts to cancel the execution of an IDbCommand.
	CreateParameter	Creates a new instance of an IDataParameter object.
	Dispose	(Производный от IDisposable.)
	ExecuteReader	Executes the CommandText against the Connection and builds an IDataReader.

В начало

Замечания

The IDbCommand interface enables you to implement a Command class, which represents a statement that is executed at a data source. For more information about Command classes, see Реализация класса Command для модуля обработки данных.

An application does not create an instance of the IDbCommand interface directly, but creates an instance of a class that implements IDbCommand.

Classes that implement IDbCommand must also implement all required members, and typically define additional members to add provider-specific functionality.

When you implement from the IDbCommand interface, you should implement the following constructors:

Item	Description
PrvCommand()	Initializes a new instance of the PrvCommand class.
PrvCommand(string cmdText)	Initializes a new instance of the PrvCommand class with the text of the query.
PrvCommand(string cmdText, PrvTransaction transaction)	Initializes a new instance of the PrvCommand class with the text of the query, a PrvConnection, and the PrvTransaction.

См. также

Справочник

Пространство имен Microsoft.ReportingServices.DataProcessing

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