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Tree View sorting by the Current Set.

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    Tree View sorting by the Current Set.

    Greetings.

    I have a tree control which I implemented using the help file. It works extremely well in pretty much every way I want it to except 1.

    The tree control is on a form for a set. I only want the tree control to display a list of items that are in this set. Currently the tree Control displays all the values that are entered.

    I also have one or two records that are seemingly blank, though I'm sure that when I figure out how to filter based on the current master record in the set that problem will get fixed.

    My tree is computed automatically as a Cr-LF expression which is below and formatted for easier viewing

    set.external_record_content_get("tract_Data",
    "ALLTRIM(Bill_Of_Ladings-"LadingNo)+ space(5)+
    ALLTRIM(stritran(Customer-"Name,\".\",\"\"))+space(5)
    + ALLTRIM(stritran(Vendor1-"Name,\".\",\"\"))+
    \".\" +
    ALLTRIM(Cuttings-"SpeciesID)+space(5)+
    Alltrim(convert_Type(Cuttings-"Logs,\"c\"))+space(5)+
    Alltrim(convert_Type(Cuttings-"Boardfeet,\"c\"))+space(5)+
    Alltrim(convert_Type(Cuttings-"Depletionamount,\"c\"))+space(5)+
    Alltrim(convert_Type(Cuttings-"Salesamount,\"c\"))+space(5)+
    Alltrim(convert_Type(Cuttings-"Salespermbf,\"c\")) ")

    Any suggestions would be appreciated

    #2
    RE: Tree View sorting by the Current Set.

    Jonathon,

    I have one form with a tree object which I've managed to sort. Instead of assigning and sorting within the properties of the tree, I found a way to accomplish it through a script.

    On the choices tab of the properties, I say that the source is an expression. Knowing that the number of nodes I will need will be the number of records in the 'employee' table, I assign it the correct number of blank entries with the expression:
    replicate(crlf(1),reccount("employee"))

    With a layout variable named "Fetched" having a default value of .F. I put my code within the OnFetch event conditional upon Fetched=.F. (to assure that it only gets executed once). Within this code, I assign the values to be displayed/assigned to an array. Having full Xbasic control at this stage, I can sort the array and make other adjustments as I see fit.

    Then I change the source_list of the tree object from an "expression" to a "list". Upon doing so I then can assign the array values to the tree:
    a=topparent.tree1.choice
    'Change tree object to 'List' style (it is set up as 'expr' style).
    a.choice_source="list"

    'Put EETree[] into tree object.
    for j=1 to EE_cnt
    a.list[j].text = EETree[j]
    a.list[j].value = word(EETree[j],-1,".") 'Last name in seq.
    next j


    After this assignmment, I set Fetched to .T. to prevent it from going through the process again (unless I want it to do so). While this work around was quite involved it accomplished my needs.

    One comment on this approach is that the tree object doesn't seem to have as much control as as an Xdialog tree. The tree object always is unexpanded until the user starts clicking. I wait for the day (maybe V12) when Xbasic can open selected nodes of the tree.

    Steve

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