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The Alpha Software Forum Participation Guidelines

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Bonus TIPS for Successful Posting

Try a Search First
It is highly recommended that a Search be done on your topic before posting, as many questions have been answered in prior posts. As with any search engine, the shorter the search term, the more "hits" will be returned, but the more specific the search term is, the greater the relevance of those "hits". Searching for "table" might well return every message on the board while "tablesum" would greatly restrict the number of messages returned.

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Totally lost newbie

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    Totally lost newbie

    Background: I have been in IT since 1970 and know C/C++. I have never used Java or JavaScript and have about a thousand questions trying to get my head around Alpha Anywhere.

    I am trying to write my 1st itty-bitty Android App that has 4 textboxes, a checkbox associated with each one, a "result" textbox, and an "Add" button. What I am trying to figure out is how to make this work. I think I need a Run Action for the button and some JavaScript that does this pseudo-code:

    var N integer;
    var Total integer;

    total=0;
    for n=1 to 4
    {
    if checkbox(n)=true then total=total + textbox(n)
    }
    Result=total

    So, whats the best way to learn how to do this in Javascript? I see things like {dialog.object} but I have no idea what that is.

    Is there documentation on the Object Model I could read?

    #2
    Welcome to Alpha! Here's some useful resources...

    Alpha YouTube Channel (lots of content here): https://www.youtube.com/c/AlphaSoftwareBurlington

    Alpha's online documentation: https://documentation.alphasoftware.com/

    When I'm struggling writing in JS I'll simply Google a plain English question/statement: "javascript loop" or "add integers in javascript". Often times a StackOverFlow post will show up or a W3schools. Both are good resources. There are others. Those are just the ones that float to the top.

    Writing out what you need to do would be a bit much, so, I wrote this sample component. Just import it into Alpha and run it in working preview. I think seeing it in action and looking over how I wrote it will answer a lot of questions.​
    Attached Files
    Mike Brown - Contact Me
    Programmatic Technologies, LLC
    Programmatic-Technologies.com
    Independent Developer & Consultant​​

    Comment


      #3
      Mike,

      THANK YOU! That is exactly what I was looking for. My final App will be far more complex, but I was just trying a simple one first. I had the check boxes and text boxes defined as well as the result and button. The piece I could not figure out was how to "connect" a button to an action. I tried to create a Run Action but got stuck there. I can see that we just use the character-based names of the objects (I had CK1-Ck4 and TXT1-TXT4) so I was on the right track (sort of).

      I can see that once I learn JavaScript this is a really cool system and actually pretty easy. I was thinking this was going to be more pictorial (like appinventor) but that does not have the richness AA does.

      I also have a StackOverflow acct and will dig around out there.

      Again, thank you.

      See, you CAN teach an old dog new tricks.

      Comment


        #4
        Hello Newbie,


        You can view this video from youtube:
        I used this key word: how to build android app alpha anywhere

        Build a mobile and web app rapidly with Alpha Anywhere

        Regards,

        Doron F.

        The Farber Consulting Group, Inc.
        Avis Car Rental Contract Manger


        Comment

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