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Retrieve values from another table

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  • Retrieve values from another table

    I must have my search terminology wrong because I cant find this answer and it is probably an easy thing to do.

    I have a customer table, with state tax code in it. When I go to create an invoice for this customer, I pull down a combo box and pick my customer. Once I do this, I need the state tax code in the invoice header file to be updated with the state tax code from the selected customer.

  • #2
    Re: Retrieve values from another table

    That's called a lookup. There are several ways to use lookups depending on what you want to do with the result.
    There can be only one.


    • #3
      Re: Retrieve values from another table

      Is the code A tax amount?
      If so, all you have to do is add more fill-in choices to your dropdown box.


      • #4
        Re: Retrieve values from another table

        Thanks to all who helped. I solved it by coding the following in the OnChange event of my customer drop-down record list:

        :frmInvoiceHeader:state_tax_code.value = lookup("customer.dbf","Customer_Id="+:frmInvoiceHeader:customer_id.value,"State_tax_code")
        :frmInvoiceHeader:city_tax_code.value = lookup("customer.dbf","Customer_Id="+:frmInvoiceHeader:customer_id.value,"City_tax_code")
        :frmInvoiceHeader:other_tax_code.value = lookup("customer.dbf","Customer_Id="+:frmInvoiceHeader:customer_id.value,"Other_tax_code")
        :frmInvoiceHeader:Terms_days.value = lookup("customer.dbf","Customer_Id="+:frmInvoiceHeader:customer_id.value,"Due_days")

        This works. But if there is a better way please advise.


        • #5
          Re: Retrieve values from another table

          Originally posted by markh28 View Post
          I must have my search terminology wrong because I cant find this answer and it is probably an easy thing to do.

          I have a customer table, with state tax code in it. When I go to create an invoice for this customer, I pull down a combo box and pick my customer. Once I do this, I need the state tax code in the invoice header file to be updated with the state tax code from the selected customer.
          Have you tried a field rule lookup and assigned values from the lookup table like the example from AlphaSports attached?

          Note that when a product is picked the retail price is placed in the invoice_items price field.
          Al Buchholz
          Bookwood Systems, LTD
          Weekly QReportBuilder Webinars Thursday 1 pm CST

          Occam's Razor - KISS
          Normalize till it hurts - De-normalize till it works.
          Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
          When we triage a problem it is much easier to read sample systems than to read a mind.
          "Make it as simple as possible, but not simpler."
          Albert Einstein


          • #6
            Re: Retrieve values from another table

            What Al wrote gets you there as directly as possible. Even so, I would like to make this one comment. Your code uses lookup() 4 times. This opens a table 4 times. If you are needing to gather several fields of record data, I would recommend opening the table once and getting all the data with that one opening:

            [COLOR="Blue"]' get customer_id selected[/COLOR]
            	dim vcid as C
            [COLOR="blue"]' open table filtered to the customer_id and fill in the form fields [/COLOR]	dim t as p
            		topparent:state_tax_code.value = t.State_tax_code
            		topparent:city_tax_code.value = t.City_tax_code
            		topparent:Other_tax_code.value = t.Other_tax_code
            		topparent:Terms_days.value = t.Due_days
            Mike W
            "I rebel in at least small things to express to the world that I have not completely surrendered"