>>Bear in mind that I haven't touched VFP in 10+ years....
>>
>>I'm writing this:
>>
>>

>>CLEAR
>>sqlProcs = CREATEOBJECT("MyStuff ")
>>sqlProcs.ConnectionString = "Data Source=192.168.2.5;Initial Catalog=Spares2;User Id=Kevin;Password=password1"
>>
>>LOCAL conneted as Boolean
>>conneted = sqlProcs.TestConnection()
>>
>>IF sqlProcs.ErrorOccured
>>	? sqlProcs.ErrorMessage
>>ELSE
>>	? conneted
>>ENDIF
>>
>>
>>
>>#DEFINE TRUE	.T.
>>#DEFINE FALSE	.F.
>>#DEFINE NEWLINE CHR(13)
>>
>>DEFINE CLASS MyStuff AS Custom
>>
>>	connectionHandle = 0;
>>
>>	ErrorMessasge = ""
>>	ErrorOccured = FALSE
>>	
>>	ConnectionString = ""
>>	PROCEDURE ConnectionString_Access()
>>    	RETURN This.ConnectionString 
>>	ENDPROC
>>
>>	PROCEDURE ConnectionString_Assign(PropValue)
>>    	This.ConnectionString   = PropValue
>>	ENDPROC
>>
>>	**********************************************************
>>	* Function.: TestConnection
>>	* Purpose..: Tests a connnection to SQL Server
>>	*
>>	**********************************************************
>>  	FUNCTION TestConnection() AS Boolean
>>
>>		LOCAL Connected AS Boolean
>>		Connected = TRUE
>>
>>		IF This.ConnectionString = "" THEN
>>			ErrorMessasge = "No connection string specified"
>>			ErrorOccured = TRUE
>>		ENDIF
>>		
>>		IF NOT ErrorOccured 
>>			SQLSETPROP(0,"DispLogin",3)
>>
>>			TRY
>>				connectionHandle = SQLSTRINGCONNECT(This.ConnectionString)
>>			CATCH TO exceptionObject
>>				AERROR(errorArray)
>>		   		ErrorMessasge = "Error " + ALLTRIwM(STR(errorArray(0))) + ". Cannot make connection." + NEWLINE + errorArray(1)
>>		   		ErrorOccured = TRUE
>>				Connected = FALSE
>>			ENDTRY
>>				   
>>			IF connectionHandle >0
>>			   = SQLDISCONNECT(connectionHandle )
>>			ENDIF
>>			
>>		ENDIF
>>		
>>	RETURN Connected
>>
>>
>>ENDDEFINE
>>

>>
>>When I run this, the connection string property is empty down in TestConnection
>>
>>What am I doing wrong here???
>
>Modified version of your code:
>

>CLEAR
>sqlProcs = CREATEOBJECT("MyStuff")
>sqlProcs.ConnectionString = "Data Source=192.168.2.5;Initial Catalog=Spares2;User Id=Kevin;Password=password1"
>
>LOCAL conneted as Boolean
>CLEAR
>
>conneted = sqlProcs.TestConnection()
>
>IF sqlProcs.ErrorOccured
>    ? sqlProcs.ErrorMessage, sqlProcs.ConnectionString
>ELSE
>    ? conneted, sqlProcs.connectionHandle 
>    
>ENDIF
>
>
>
>#DEFINE TRUE    .T.
>#DEFINE FALSE    .F.
>#DEFINE NEWLINE CHR(13)
>
>DEFINE CLASS MyStuff AS Custom
>
>    connectionHandle = 0;
>
>    ErrorMessage = ""
>    ErrorOccured = FALSE
>    
>    ConnectionString = ""
>    PROCEDURE ConnectionString_Access()
>        RETURN This.ConnectionString 
>    ENDPROC
>
>    PROCEDURE ConnectionString_Assign(PropValue)
>        This.ConnectionString   = PropValue
>    ENDPROC
>
>    **********************************************************
>    * Function.: TestConnection
>    * Purpose..: Tests a connnection to SQL Server
>    *
>    **********************************************************
>      FUNCTION TestConnection() AS Boolean
>
>        LOCAL Connected AS Boolean
>        
>
>        IF This.ConnectionString == "" THEN
>            this.ErrorMessage = "No connection string specified"
>            this.ErrorOccured = TRUE
>        ENDIF
>        
>        IF NOT this.ErrorOccured
>            SQLSETPROP(0,"DispLogin",3)
>            this.connectionHandle = SQLSTRINGCONNECT(This.ConnectionString)
>            IF this.connectionHandle < 0
>                AERROR(errorArray)
>                this.ErrorMessage = "Error " + ALLTRIM(STR(errorArray[1])) +;
>                                    ". Cannot make connection." + NEWLINE + errorArray(2)
>                this.ErrorOccured = TRUE
>            ELSE
>                Connected = TRUE
>            ENDIF
>                   
>            IF this.connectionHandle >0
>               = SQLDISCONNECT(connectionHandle )
>            ENDIF
>            
>        ENDIF
>        
>    RETURN Connected
>
>
>ENDDEFINE
>

Thanks!