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Tablesum filter intermittent

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  • Tablesum filter intermittent

    Hi there,

    I have a tablesum which normally works fine. However, every now and then it gives an error mess "Cannot use function in this context"

    I attach the relevant code hoping that someone can spot why I am getting this message.

    'Date Created: 05-Oct-2011 05:06:33 PM
    'Last Updated: 05-Oct-2011 05:06:33 PM
    'Created By  : David
    'Updated By  : David
    '	The following s_ variables are session variables 
    '	from the 'Define New variables' in a Form 
    s_form_title = "Sop_Xct_Inv_prep_m"
    s_acc = "debt"
    s_acc_addr = "debt_addr"
    s_head = "sop_head_inv_prep"
    s_addr = "sop_addr_inv_prep"
    s_item = "sop_items_inv_prep"
    s_serve_head = "sop_head_inv"
    s_serve_addr = "sop_addr_inv"
    s_serve_item = "sop_items_inv"
    '	The Form has a OnSave event which call this script
    '	- part of which is coded here
    dim Td_head				 	as p				'pointer to Sop Head
    dim Td_itm					as p				'pointer to Sop Items
    dim Td_debt					as p
    dim shared s_head			as c				'Must load s_head file name in Form
    dim shared s_item			as c				'Must load s_item file name in Form
    dim shared s_acc			as c				'Must load s_acc file name in Form
    dim shared s_vat_rate		as n				'Must load s_vat_rate file name in Form
    dim shared s_vat_code		as n				'Must load s_vat_code file name in Form
    dim shared s_xact_id		as n				'facilitates net and vat calc
    '	code in here has been removed as it is not relevant to the problem I have
    '	Note that Xm_xctidf which is part of the filter is the Id Field in Table Td_itm
    '	Td_itm.Xm_xctidf
    s_xact_id  = Td_head.xf_xctidf					'needs to be shared or global ??
    xact_filter = "Xm_xctidf = Var->s_xact_id"		'Works
    '######### Problem ?
    head_netamt = tablesum(s_item,xact_filter,"netamt")		'intermittent problem line ?
    head_vatamt = tablesum(s_item,xact_filter,"Vatamt")
    s_net_amnt = head_netamt						'req for button 'btn_Commit_Xsact'
    s_vat_dsc_amnt = head_vatamt					'req for button 'btn_Commit_Xsact'
    												'..Script 'debt_Job_Post_Btch_Ctrl'
    	Td_head.Netamt = head_netamt
    	Td_head.Acumitmvat = head_vatamt
    	Td_head.Dueamt = head_netamt + head_vatamt
    As I mention in the attachment var s_item is passed from a Form
    Dave Mac

    It's not so much what you don't know that gets you into trouble, but what you know for sure, that just ain't so. - Mark Twain.

  • #2
    Re: Tablesum filter intermittent

    If it works at all and then stumbles from time to time I would suspect a timing issue.

    Suggest you turn this into a function and call the function instead of this script.
    There can be only one.


    • #3
      Re: Tablesum filter intermittent

      Hi Stan,

      Thanks for the prompt response. Did so. Will see how it goes.

      Should one use a function rather than a script where possible ? Are there any cases where scripts are preferable ?
      Dave Mac

      It's not so much what you don't know that gets you into trouble, but what you know for sure, that just ain't so. - Mark Twain.


      • #4
        Re: Tablesum filter intermittent

        Can't think of any. With a function you know/control the flow more precisely. A function must complete before processing proceeds.
        There can be only one.


        • #5
          Re: Tablesum filter intermittent

          Originally posted by Stan Mathews View Post
          CaA function must complete before processing proceeds.
          First time it has been explained to me. Makes a man fear for Scripts

          Have a good one
          Dave Mac

          It's not so much what you don't know that gets you into trouble, but what you know for sure, that just ain't so. - Mark Twain.