CDynamicParameterAccessor Class

Artikel
06/05/2017

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The latest version of this topic can be found at CDynamicParameterAccessor Class.

Similar to CDynamicAccessor but obtains parameter information to be set by calling the ICommandWithParameters interface.

Syntax

class CDynamicParameterAccessor : public CDynamicAccessor

Members

Methods

CDynamicParameterAccessor	The constructor.
GetParam	Retrieves the parameter data from the buffer.
GetParamCount	Retrieves the number of parameters in the accessor.
GetParamIO	Determines whether the specified parameter is an input or output parameter.
GetParamLength	Retrieves the length of the specified parameter stored in the buffer.
GetParamName	Retrieves the name of a specified parameter.
GetParamStatus	Retrieves the status of the specified parameter stored in the buffer.
GetParamString	Retrieves the string data of the specified parameter stored in the buffer.
GetParamType	Retrieves the data type of a specified parameter.
SetParam	Sets the buffer using the parameter data.
SetParamLength	Sets the length of the specified parameter stored in the buffer.
SetParamStatus	Sets the status of the specified parameter stored in the buffer.
SetParamString	Sets the string data of the specified parameter stored in the buffer.

Remarks

The provider must support ICommandWithParameters for the consumer to use this class.

The parameter information is stored in a buffer created and managed by this class. Obtain parameter data from the buffer by using GetParam and GetParamType.

For an example demonstrating how to use this class to execute a SQL Server stored procedure and get the output parameter values, see Knowledge Base article Q058860, "HOWTO: Execute Stored Procedure using CDynamicParameterAccessor." Knowledge Base articles are available in the MSDN Library Visual Studio documentation or at https://support.microsoft.com/.

Requirements

Header: atldbcli.h

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