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IDbCommand-Schnittstelle

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

Namespace:  Microsoft.ReportingServices.DataProcessing
Assemblys:   Microsoft.ReportingServices.Interfaces (in Microsoft.ReportingServices.Interfaces.dll)
  Microsoft.ReportingServices.SharePoint.UI.WebParts (in Microsoft.ReportingServices.SharePoint.UI.WebParts.dll)

Syntax

'Declaration
Public Interface IDbCommand _
    Inherits IDisposable
'Usage
Dim instance As IDbCommand
public interface IDbCommand : IDisposable
public interface class IDbCommand : IDisposable
type IDbCommand =  
    interface 
        interface IDisposable 
    end
public interface IDbCommand extends IDisposable

Der IDbCommand-Typ macht folgende Elemente verfügbar.

Eigenschaften

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

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Methoden

  Name Beschreibung
Öffentliche Methode Cancel Attempts to cancel the execution of an IDbCommand.
Öffentliche Methode CreateParameter Creates a new instance of an IDataParameter object.
Öffentliche Methode Dispose (Geerbt von IDisposable.)
Öffentliche Methode ExecuteReader Executes the CommandText against the Connection and builds an IDataReader.

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Hinweise

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 Implementieren einer Command-Klasse für Datenverarbeitungserweiterungen.

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.

Siehe auch

Verweis

Microsoft.ReportingServices.DataProcessing-Namespace