IsConnected (clsDataSource)

Observação
Esse recurso será removido na próxima versão do Microsoft SQL Server. Não utilize esse recurso em desenvolvimentos novos e modifique, assim que possível, os aplicativos que atualmente o utilizam.

The IsConnected method of an object of ClassType clsDataSource verifies the connection to the data source specified by the ConnectionString property. If the data source is not connected, the method attempts to connect to the source.

Sintaxe

bRet = object.IsConnected(ErrorMsg As String)

Parâmetros

• bRet
  A Boolean variable that receives the returned value: True is returned if the data source is connected, False if the connection cannot be established.

• object
  An object of ClassTypeclsDataSource.

• ErrorMsg
  An optional string variable that receives the error definition if the connection cannot be established.

Comentários

If the data source is already connected when the method is executed, the method returns True. If the data source is not connected, the method attempts to connect to the data source, returning True if the connection is established or False if the connection cannot be established.

It is not necessary to establish a connection to a data source before it can be used. Decision Support Objects (DSO) will automatically establish the connection when necessary (for example, to read a property value from the source database or to access data in the database).

Exemplo

Use the following code to establish a connection to a data source with the IsConnected property:

'Assume an object (dsoDS) of ClassType clsDataSource exists 
If Not dsoDS.IsConnected Then
   ' Code to handle connection error
Else 
   ' Connection is established 
End If 

Consulte também

Referência

clsDataSource

ConnectionString (clsDataSource)