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Count records in browse

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    #1

    Count records in browse

    Hi,

    After searching and reading numerous posts, I just don't see what I am missing.

    I want to count the records in a browse on a form? This form is complex with 4 tables, two of which are 1:m - if that makes any difference.

    This code works for counting records in the topparent:

    tbl = table.current()
    Records = tbl.records_get()
    ui_msg_box("Record Count","Surveys Returned = "+ltrim(str(records)))
    END

    BUT the following does not work for the 4th table on the form.

    tbl = table.current(4)
    Records = tbl.records_get()
    ui_msg_box("Record Count","Surveys Returned = "+ltrim(str(records)))
    END

    I would be equally happy using TableCount or DBCount also, but setting the right filter escapes me.

    The filter I want is

    qData->RecID=var->v_recid

    But I have not been able to get the right combination of "" versus '' or indexes or who knows what...

    Any help would be greatly appreciated. I'm sure I'm making much too big a job of this.

    Tom
    Tags: None
    #2
    RE: Count records in browse

    Well, I'm still at it!

    I'm now approaching this with a query. The following query does not work. I get the message, "Filter Expression is not Logical".

    dim global vP_ID as c
    vP_ID = P_ID.value

    tbl = table.open("qData")
    query.description = "count"
    query.order = ""
    query.filter = "qData->P_ID=var->Vp_Id"
    query.options = "I"
    i = tbl.query_create()

    records = i.records_get()
    ui_msg_box("Record Count","Surveys Completed = "+ltrim(str(records)))
    tbl.close()
    END

    I copied the Query from the Operation tab after using the Script recorder. It works fine as an operation.

    Thanks

    Tom

    Comment

      #3
      RE: Count records in browse

      On a form with a one to many linked browse where the parent parent linking field is POLICYT and the linked child table is Fpt_Lines, the following calculated field works ( don't think it matters what field you count ):
      The drag down expression creator makes this a very easy thing to do.
      count(Fpt_Lines->Fpt_Code,GRP->POLICYT)

      Comment

        #4
        RE: Count records in browse

        Tom,

        In addition to John's idea, here's a brute force approach, using the onFetch() event for the parent table.

        -- tom

        Comment

          #5
          RE: Count records in browse

          John and Tom

          Thanks for taking the time to look at this.

          John - I tried all the drag and drop combination I could think of with no success. The set has two 1:M tables and the table I wish to count was number 4. I couldn't get any of the calculated fields to work.

          Tom - YES!!!!!! Your approach did it. Thank You very much.

          Tom - still learning

          Comment

            #6
            RE: Count records in browse

            Tom,

            Depending on your performance requirements, and the number of linked child table records, you might want to consider an even more basic solution. You could add a field to your parent table and use it to hold the current count of linked child table records; incrementing each time a new child is entered, and decrementing when a child is deleted. This would be the fastest solution I suspect, since the current count would always be available just by reading the current value of the new field.

            -- tom

            Comment

              #7
              RE: Count records in browse

              Thanks for the thought - but the count isn't that important! More of a convenience for the user. An embellishment - too much time on my hands, then it got to be a challenge and after about 5+ hours you arrived with an answer.

              Cann't tell you how much I appreciate it... but I'll try...

              Thanks again,

              Tom

              Comment

                #8
                RE: Count records in browse

                Give this a try as a calculated field:

                tablecount("qdata.dbf","qdata->P_ID = " + chr(34) + P_ID + chr(34))

                where P_ID is the linking field on the parent and the child or change the field names if that is not the case.

                Comment

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