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How to know if tables are open ?

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    How to know if tables are open ?

    Hi,
    I would like to know, when using the interactive window, if there is a method of knowing which tables are open, or left open. I would also like to know that at other times, eg form design mode, etc.
    Any help would be appreciated.

    Brian

    #2
    RE: How to know if tables are open ?

    Try to obtain exclusive use with

    "Tbl> = Table.open( Filename ,"File_RW_Exclusive")

    You'll get an error if the table is in use.
    There can be only one.

    Comment


      #3
      RE: How to know if tables are open ?

      Stan,
      Thanks for the help, yes I get the errors. I just wondered if there were a simple way of seeing which tables are currently open. eg. in MS works, the windows drop-down shows the open tables, just thought there might be something similar in A5.
      Seems that leaving tables open can cause lots of problems, so I want to get it correct first off.

      Thanks for the help.

      Brian.

      Comment


        #4
        RE: How to know if tables are open ?

        Ahh, the power of cheese...., no I mean xbasic. Here's a function to do what you want.


        FUNCTION is_open AS L (filename AS C )
        'Date Created: 30-Dec-2002 07:44:03 PM
        'Last Updated: 30-Dec-2002 07:46:03 PM
        'Created By :
        'Updated By :
        is_open = .F. ' set default

        on error goto test

        x_tbl=table.open(filename,FILE_RW_EXCLUSIVE)
        x_tbl.close() ' if able to open exclusively, close the file and the flag variable remains fales

        end
        test:

        is_open=.t. ' file was opened elsewhere
        on error goto 0 'reset to none or substitute your normal error routine name for the zero
        END FUNCTION

        Usage is result = is_open(tablename)- tablename either a table name in quotes or variable containing a table name character string. Result is a logical true or false.
        There can be only one.

        Comment


          #5
          RE: How to know if tables are open ?

          Stan,
          Thanks for the advice and scripting. I'll try it out.
          Thanks again for your time,
          Brian.

          Comment

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