IColumnsInfoImpl Class

[アーティクル]
06/05/2017

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Provides an implementation of the IColumnsInfo interface.

Syntax

template <class T>  
class ATL_NO_VTABLE IColumnsInfoImpl :   
   public IColumnsInfo,    
   public CDBIDOps

Parameters

T
Your class, derived from IColumnsInfoImpl.

Members

Methods

GetColumnInfo	Returns the column metadata needed by most consumers.
MapColumnIDs	Returns an array of ordinals of the columns in a rowset that are identified by the specified column IDs.

Remarks

A mandatory interface on rowsets and commands. To modify the behavior of your provider's IColumnsInfo implementation, you need to modify the provider column map.

Requirements

Header: atldb.h

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