---
title: "Connection (ADO for Visual C++ Syntax) | Microsoft Docs"
ms.prod: sql
ms.prod_service: connectivity
ms.technology: connectivity
ms.custom: ""
ms.date: "01/19/2017"
ms.reviewer: ""
ms.topic: conceptual
apitype: "COM"
dev_langs: 
  - "C++"
helpviewer_keywords: 
  - "Connection collection [ADO], ADO for Visual C++ syntax"
ms.assetid: cb5e1e15-c5b4-44ab-892f-bf1ae601d0a5
author: MightyPen
ms.author: genemi
---
# Connection (ADO for Visual C++ Syntax)
## Methods  
  
```  
BeginTrans(long *TransactionLevel)  
CommitTrans(void)  
RollbackTrans(void)  
Cancel(void)  
Close(void)  
Execute(BSTR CommandText, VARIANT *RecordsAffected, long Options, _ADORecordset **ppiRset)  
Open(BSTR ConnectionString, BSTR UserID, BSTR Password, long Options)  
OpenSchema(SchemaEnum Schema, VARIANT Restrictions, VARIANT SchemaID, _ADORecordset **pprset)  
```  
  
## Properties  
  
```  
get_Attributes(long *plAttr)  
put_Attributes(long lAttr)  
get_CommandTimeout(LONG *plTimeout)  
put_CommandTimeout(LONG lTimeout)  
get_ConnectionString(BSTR *pbstr)  
put_ConnectionString(BSTR bstr)  
get_ConnectionTimeout(LONG *plTimeout)  
put_ConnectionTimeout(LONG lTimeout)  
get_CursorLocation(CursorLocationEnum *plCursorLoc)  
put_CursorLocation(CursorLocationEnum lCursorLoc)  
get_DefaultDatabase(BSTR *pbstr)  
put_DefaultDatabase(BSTR bstr)  
get_IsolationLevel(IsolationLevelEnum *Level)  
put_IsolationLevel(IsolationLevelEnum Level)  
get_Mode(ConnectModeEnum *plMode)  
put_Mode(ConnectModeEnum lMode)  
get_Provider(BSTR *pbstr)  
put_Provider(BSTR Provider)  
get_State(LONG *plObjState)  
get_Version(BSTR *pbstr)  
get_Errors(ADOErrors **ppvObject)  
```  
  
## Events  
  
```  
BeginTransComplete(LONG TransactionLevel, ADOError *pError, EventStatusEnum *adStatus, _ADOConnection *pConnection)  
CommitTransComplete(ADOError *pError, EventStatusEnum *adStatus, _ADOConnection *pConnection)  
ConnectComplete(ADOError *pError, EventStatusEnum *adStatus, _ADOConnection *pConnection)  
Disconnect(EventStatusEnum *adStatus, _ADOConnection *pConnection)  
ExecuteComplete(LONG RecordsAffected, ADOError *pError, EventStatusEnum *adStatus, _ADOCommand *pCommand, _ADORecordset *pRecordset, _ADOConnection *pConnection)  
InfoMessage(ADOError *pError, EventStatusEnum *adStatus, _ADOConnection *pConnection)  
RollbackTransComplete(ADOError *pError, EventStatusEnum *adStatus, _ADOConnection *pConnection)  
WillConnect(BSTR *ConnectionString, BSTR *UserID, BSTR *Password, long *Options, EventStatusEnum *adStatus, _ADOConnection *pConnection)  
WillExecute(BSTR *Source, CursorTypeEnum *CursorType, LockTypeEnum *LockType, long *Options, EventStatusEnum *adStatus, _ADOCommand *pCommand, _ADORecordset *pRecordset, _ADOConnection *pConnection)  
```  
  
## See Also  
 [Connection Object (ADO)](../../../ado/reference/ado-api/connection-object-ado.md)