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Count rows in a browse

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    Count rows in a browse

    Is it possible to determine the number of rows viewable in a browse? Or, perhaps if I explain my intent, someone has a method to acheive it.

    I would like to place a button on a form with an embedded browse, that when clicked, causes the record pointer to seek to the last record in the currently displayed index of the browse. That's easy enough to do. The trick is that I would like the browse to be full of records rather than display just one record on the top row of the browse, as happens when one presses ^END in browse view. I'd rather not have to resort to sys_send_keys(), if possible.

    Tom Lyon

    #2
    RE: Count rows in a browse

    Tom,

    Michael Humby has a nice bit of code in the archive to focus on the last 12 records in a browse. If you design your browse to hold 12 records, then this would give you the result you want.

    I believe the 12 record setup is arbitrary. You could alter the code to increase or decrease the number as desired.
    There can be only one.

    Comment


      #3
      RE: Count rows in a browse

      Yah, that's easy enough to do. I think I have tried something similar. However, I am thinking that as powerful as alpha 5 is, we should be able to calculate the number of rows in any browse. For example, A5 stores the row height and the browse height. The browse height is accessible to us. Where is the row height? Knowing these two parameters would greatly simply any scripting needed and make the use of such a script more professional-appearing and work across browses with variable rows.

      Tom Lyon

      Comment


        #4
        RE: Count rows in a browse

        would a count of the records help?? and index with descending order??

        May not be what you are looking for

        Good Luck

        Dave
        Dave Mason
        [email protected]
        Skype is dave.mason46

        Comment


          #5
          RE: Count rows in a browse

          dave, here is a peice of code i use in a schedule print job to let the user know how many sheets of paper it will take to print the entire schedule and then tape them together. i've modified it slightly for your purpose. you will have to supply the var->vbrowse_rows value. the value of vcolumns will be the number of rows required to display the var->num_recs value.

          dim vbrowse_rows as n
          dim num_recs as n
          vbrowse_rows='number of rows in your browse'
          t=table.current()
          num_recs = t.records_get()
          if mod(num_recs, vbrowse_rows)=0 then
          vcolumns=num_recs/vbrowse_rows
          else
          if mod(num_recs, vbrowse_rows)0
          vcolumns=int(vcolumns=num_recs/vbrowse_rows)+1
          end if

          hope this helps,
          jeff

          Comment


            #6
            RE: Count rows in a browse

            one other thing, if you use this code in a function all you have to supply is the var->vbrowse_rows value. i have not figured a way around that as of yet, but have had no need to as the app i use for is always the same size.

            Comment


              #7
              RE: Count rows in a browse

              whoops, error in the code, below is corrected.

              dim vbrowse_rows as n
              dim num_recs as n
              vbrowse_rows='number of rows in your browse'
              t=table.current()
              num_recs = t.records_get()
              if mod(num_recs, vbrowse_rows)=0 then
              vcolumns=num_recs/vbrowse_rows
              else
              if mod(num_recs, vbrowse_rows)0
              vcolumns=int(num_recs/vbrowse_rows)+1
              end if

              Comment


                #8
                RE: Count rows in a browse

                sorry for the multiple posts. i was in a hurry asnwering this. disregard previous code. i have not tested the code below but the version i use works.

                dim vbrowse_rows as n
                dim num_recs as n
                vbrowse_rows='number of rows in your browse'
                t=table.current()
                num_recs = t.records_get()
                if num_recs

                Comment


                  #9
                  RE: Count rows in a browse

                  That's not a bad idea at all. It's a kludge, at best, but I've done that before. It does the trick when you need to primarily view the last few records of a browse regularly.

                  Tom Lyon

                  Comment


                    #10
                    RE: Count rows in a browse

                    Tom:

                    I know nothing of what I speak......

                    The following code for a button on a form with an embeded browse works. The embeded browse has 8 rows and and the table holds over 500 records. The code will display the last seven records and a blank, shaded 'new record' line at its bottom. This is my checkbook - I have a Gig processor and fast display card so it doesn't jump around and wiggle.
                    I never really know if ui_freeze works right. I don't even know if this is what you want. It is the collective effort of Tom Cone and other gracious helpers on this board. Certainly nothing I could have figured out.

                    Dim t as P
                    t = table.current()
                    f = parentform.this
                    f:Browse1.activate()
                    f:browse1.fetch_last()
                    for i = 1 to 7
                    t.fetch_prev(i)
                    next i
                    f:Browse1.refresh()
                    this.enable()
                    f:browse1:number.activate()
                    sys_send_keys("{PgDn}")
                    ui_freeze(.f.)

                    Alpha On

                    Ken

                    Comment


                      #11
                      RE: Count rows in a browse

                      Yes, I did that same thing in my attempts to solve the problem. One of my goals is to have the button that jumps to the end of the browse call a script. Taht way, i don;t have to go through and modify each and every form that uses this same button. But that simply isn't going to work as I intend unless I specify the number of rows in the browse, and this means I must prevent the user from changing the row height in order to be sure of the number of rows. Even if I try to set the row height the same in all forms, I have no way of knowing precisely because A5 doesn't give me access to that property. I'm glad this isn't real important..it's just a convenience that users have requested but can live without.

                      Perhaps one of the Alpha Five engineers could chime in here and shed some light on the elusive browse row height property?

                      Tom Lyon

                      Comment

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