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  3. Extracting all elements from listbox

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Extracting all elements from listbox

terrylau
terrylau over 16 years ago

I got a list box that I want to extract out all the fields in it - its a list box with OPTIONS sort. Using axlFormListGetItem() with a 0 and -1 will only get me the first and last element of the list field. How do I go about to be able to extract out all the fields? Appreciate any help as still kinda new to SKILL.                

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  • kerchunk
    kerchunk over 16 years ago
    You'll be wanting to iterate through the elements of the listbox. This snippet should get you started...
     
    tstcompname_list = nil
    notDone = t
    pos = 0
    while( notDone
        tmpStr = axlFormListGetItem( yerform "yer_list" pos)
        if( tmpStr then
            tstcompname_list = cons( tmpStr tstcompname_list)
        else
            notDone = nil
        );end-if
        pos++
    );end-while 

    HTH,

    Chris Walters

    local Cadence guru

    () 

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  • terrylau
    terrylau over 16 years ago

    Thanks, Chris.. it works great and helps me lots. Want to ask as I'm writing the results to a text file using fprintf (form " %L \n" tmpStr) function, it ended up something like this :

    "test1"
    "test2"
    "test3"
    nil

    How do I remove the "" signs and the last word nil as i just want the result to show :

    test1
    test2
    test3

    I've tried playing around with some of the values but can't seem to solve it... Thanks in advance.

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  • Ejlersen
    Ejlersen over 16 years ago

    Hi,

    First of all, try replacing your %L with %s - this will take care of the "" signs

    %s prints string whereas %L is list.

    The nil I'm not sure about, maybe running through a loop once to much? If not, post your code and it will be easier to figure out what's going wrong.

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  • terrylau
    terrylau over 16 years ago

    Basically my codes are (thanks to Chris) : -

            name_list = nil
            notDone = t
            pos = 0
            while( notDone          
                 tempStr = axlFormListGetItem(TestForm "Form_lst_listbox" pos)
            if(tmpStr then name_list = cons(tempStr name_list)
                else notDone = nil);end-if   
            fprintf(TestForm " %L \n" tempStr)       
            pos++);end-while 

     I have to use the %L, if using %s will return an error below and no results...

    E- *Error* fprintf/sprintf: format spec. incompatible with data - nil

     Using the %L will give the results but with the "" and nil.

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  • Charlie Davies
    Charlie Davies over 16 years ago
    You could bound the fprintf with an if statement.
     
    if( tempstr fprintf(TestForm "%s\n" tempStr))
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