FiveTech Software tech support forums

Posted: **Mon Mar 10, 2025 9:48 pm**

 METHOD New(  ncArea, cFile, cDriver, lShared, lReadOnly, cPassword )   
   METHOD Open( cAlias, cFile, cDriver, lShared, lReadOnly, cPassword )

when I must use Open and when I must use New ?

Posted: **Mon Mar 10, 2025 11:30 pm**

Dear Silvio
Both methods return Self, so they allow you to create a TDatabase object
If you use New(), and the database is not open, you will have to call the Activate method that opens the file (this method call the Use() method that opens the table)
If you use Open(), it means that the table is not open, so the Open method performs the same functions as New and Activate together
I hope this helps

Posted: **Tue Mar 11, 2025 9:57 am**

cnavarro wrote: Mon Mar 10, 2025 11:30 pm Dear Silvio
Both methods return Self, so they allow you to create a TDatabase object
If you use New(), and the database is not open, you will have to call the Activate method that opens the file (this method call the Use() method that opens the table)
If you use Open(), it means that the table is not open, so the Open method performs the same functions as New and Activate together
I hope this helps

I noticed this because in the file where I use to open the tables sometimes I use Open and sometimes I use New, however there is always the USE command example

Code: Select all | Expand

CLASS TXData from TDatabase
      DATA cDbfPath   init ".\DATA\"  
    ENDCLASS

CLASS TCust from TXData
   METHOD New()
   ENDCLASS

METHOD New( lShared ) CLASS TCust
   Default lShared := .t.
   ::super:New(,::cDbfPath + "customers" ,"DBFCDX", lShared)
   if ::use()
      ::setOrder(1)
      ::gotop()
   endif
   RETURN Self

up to now the procedures have not blocked, yesterday I noticed this problem because a dbf would not open for me but it was me who had entered the wrong name

FiveTech Software tech support forums

tdatabase Open or New ? : big doubt

tdatabase Open or New ? : big doubt

Re: tdatabase Open or New ? : big doubt

Re: tdatabase Open or New ? : big doubt