Alpha Software Mobile Development Tools:   Alpha Anywhere    |   Alpha TransForm subscribe to our YouTube Channel  Follow Us on LinkedIn  Follow Us on Twitter  Follow Us on Facebook
Devcon 2020 Goes Virtual! LEARN MORE >

Announcement

Collapse

The Alpha Software Forum Participation Guidelines

The Alpha Software Forum is a free forum created for Alpha Software Developer Community to ask for help, exchange ideas, and share solutions. Alpha Software strives to create an environment where all members of the community can feel safe to participate. In order to ensure the Alpha Software Forum is a place where all feel welcome, forum participants are expected to behave as follows:
  • Be professional in your conduct
  • Be kind to others
  • Be constructive when giving feedback
  • Be open to new ideas and suggestions
  • Stay on topic


Be sure all comments and threads you post are respectful. Posts that contain any of the following content will be considered a violation of your agreement as a member of the Alpha Software Forum Community and will be moderated:
  • Spam.
  • Vulgar language.
  • Quotes from private conversations without permission, including pricing and other sales related discussions.
  • Personal attacks, insults, or subtle put-downs.
  • Harassment, bullying, threatening, mocking, shaming, or deriding anyone.
  • Sexist, racist, homophobic, transphobic, ableist, or otherwise discriminatory jokes and language.
  • Sexually explicit or violent material, links, or language.
  • Pirated, hacked, or copyright-infringing material.
  • Encouraging of others to engage in the above behaviors.


If a thread or post is found to contain any of the content outlined above, a moderator may choose to take one of the following actions:
  • Remove the Post or Thread - the content is removed from the forum.
  • Place the User in Moderation - all posts and new threads must be approved by a moderator before they are posted.
  • Temporarily Ban the User - user is banned from forum for a period of time.
  • Permanently Ban the User - user is permanently banned from the forum.


Moderators may also rename posts and threads if they are too generic or do not property reflect the content.

Moderators may move threads if they have been posted in the incorrect forum.

Threads/Posts questioning specific moderator decisions or actions (such as "why was a user banned?") are not allowed and will be removed.

The owners of Alpha Software Corporation (Forum Owner) reserve the right to remove, edit, move, or close any thread for any reason; or ban any forum member without notice, reason, or explanation.

Community members are encouraged to click the "Report Post" icon in the lower left of a given post if they feel the post is in violation of the rules. This will alert the Moderators to take a look.

Alpha Software Corporation may amend the guidelines from time to time and may also vary the procedures it sets out where appropriate in a particular case. Your agreement to comply with the guidelines will be deemed agreement to any changes to it.



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.

When you do post
First, make sure you are posting your question in the correct forum. For example, if you post an issue regarding Desktop applications on the Mobile & Browser Applications board , not only will your question not be seen by the appropriate audience, it may also be removed or relocated.

The more detail you provide about your problem or question, the more likely someone is to understand your request and be able to help. A sample database with a minimum of records (and its support files, zipped together) will make it much easier to diagnose issues with your application. Screen shots of error messages are especially helpful.

When explaining how to reproduce your problem, please be as detailed as possible. Describe every step, click-by-click and keypress-by-keypress. Otherwise when others try to duplicate your problem, they may do something slightly different and end up with different results.

A note about attachments
You may only attach one file to each message. Attachment file size is limited to 2MB. If you need to include several files, you may do so by zipping them into a single archive.

If you forgot to attach your files to your post, please do NOT create a new thread. Instead, reply to your original message and attach the file there.

When attaching screen shots, it is best to attach an image file (.BMP, .JPG, .GIF, .PNG, etc.) or a zip file of several images, as opposed to a Word document containing the screen shots. Because Word documents are prone to viruses, many message board users will not open your Word file, therefore limiting their ability to help you.

Similarly, if you are uploading a zipped archive, you should simply create a .ZIP file and not a self-extracting .EXE as many users will not run your EXE file.
See more
See less

XBasic syntax for destructor method

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    XBasic syntax for destructor method

    Hi,

    I thought I read somewhere in the documentation that the syntax for creating a destructor method for an xbasic class was ~ClassName(), but Alpha is not liking that. Can someone direct me to the docs on this?

    Thanks!

    Edit: I found where the syntax shows the ~ClassName(), here: https://documentation.alphasoftware....s%20Syntax.xml, but it just isn't working.
    Tags: None
    #2
    Re: XBasic syntax for destructor method

    Hey Adam,

    To create a destructor (special member function that is called when the lifetime of an object ends.)

    DEFINE CLASS TestClass

    dim read protected write Name as C
    dim Data as A
    dim read protected write static InstanceCount as N

    FUNCTION ~TestClass()
    debug(1)
    END FUNCTION
    END CLASS

    Dim a as testclass
    ?A
    = '
    Clear as V() '
    static DefaultDataType as C() '
    TestClass as C() '
    TESTING as C() '
    ~TestClass as C() '
    Name = ""


    DELETE A < this will trigger the ~TextClass function
    Alex Collier

    "The spread of computers and the Internet will put jobs in two categories. People who tell computers what to do, and people who are told by computers what to do"

    AA Builds from 5221_5152 to Pre-releases >> Deploying to IIS in AWS

    Comment

      #3
      Re: XBasic syntax for destructor method

      Alex,

      As I said in the OP, I found that in the documentation... but Alpha doesn't seem to recognize the ~ and won't let it save/compile.

      I get an error message:

      Error at line: xx, column: 1
      Error: Expected value

      I get this error even if I copy your code above exactly.

      Code:
      DEFINE CLASS TestClass

dim read protected write Name as C
dim Data as A
dim read protected write static InstanceCount as N

FUNCTION ~TestClass()
debug(1)
END FUNCTION
END CLASS

      Comment

        #4
        Re: XBasic syntax for destructor method

        Originally posted by AdamP View Post
        Alex,

        As I said in the OP, I found that in the documentation... but Alpha doesn't seem to recognize the ~ and won't let it save/compile.

        I get an error message:

        Error at line: xx, column: 1
        Error: Expected value

        I get this error even if I copy your code above exactly.

        Code:
        DEFINE CLASS TestClass

dim read protected write Name as C
dim Data as A
dim read protected write static InstanceCount as N

FUNCTION ~TestClass()
debug(1)
END FUNCTION
END CLASS
        Hello Adam!

        We got your doc report and tested the Xbasic destructor syntax. We also tested the code quoted in your post in the current release. We were unable to reproduce your issue.

        If you think you found a bug, please submit a FULL test case to [email protected].

        Thanks!
        Sarah Mitchell
        Director of Customer Success | [URL="https://www.alphasoftware.com"]Alpha Software Corporation[/URL]
        [B]Get in the know! [/B] Join us for our Weekly Webinars: [URL="https://www.alphasoftware.com/weekly-transform-tuesday-webinar"]TransForm Tuesday[/URL] and [URL="https://www.alphasoftware.com/weekly-alpha-anywhere-overview-webinar"]Wednesday's Alpha Anywhere Demo and Q&A[/URL]
        Connect with us: [URL="https://www.instagram.com/alpha_software_corp/"]Instagram[/URL] | [URL="https://twitter.com/AlphaSoftware"]Twitter[/URL] | [URL="https://www.facebook.com/AlphaSoftware/"]Facebook[/URL] | [URL="https://www.linkedin.com/company/alpha-software"]LinkedIn[/URL] | [URL="https://www.youtube.com/user/AlphaSoftwareInc"]YouTube[/URL]

        Comment

          #5
          Re: XBasic syntax for destructor method

          Adam,

          You need to include the Alpha version/build in your posts. Alpha often cannot replicate issues because they often test bug reports with internal builds... not the public builds everyone else uses. At times these differ. Or... Alpha may test in their current release not knowing what release you're using.

          Using build 5221 I get exactly the same results as you.
          Using build Pre-release build 5417 I do not see an error when saving the class. However, there is an error using the class
          Using the current release, 5445, there are no errors and the Class, and it's functions, work properly.

          Whatever issues there were have been corrected in the releases leading up to, and including 5445.

          What build are are using?
          Last edited by Davidk; 11-07-2018, 09:41 PM.

          Comment

            #6
            Re: XBasic syntax for destructor method

            Thanks David, that makes sense.

            I am also using build 5221.

            Comment

              #7
              Re: XBasic syntax for destructor method

              Then you should download 5445 and put it in as a separate installation. You do not need to update your current 5221 install. That way you can test the current release and ensure it works as expected... and this may help confirm an issue with 5221. That may, however, leave a big question as to why Alex does not have an issue.
              Last edited by Davidk; 11-07-2018, 09:41 PM.

              Comment

                #8
                Re: XBasic syntax for destructor method

                Originally posted by Davidk View Post
                Then you should download 5445 and put it in as a separate installation. You do not need to update your current 5221 install. That way you can test the current release and ensure it works as expected... and this may help confirm an issue with 5221. That may, however, leave a big question as to why Alex does not have an issue.
                I had tested in the latest release :) I will always to do this unless you sy what version i should be running it under
                Alex Collier

                "The spread of computers and the Internet will put jobs in two categories. People who tell computers what to do, and people who are told by computers what to do"

                AA Builds from 5221_5152 to Pre-releases >> Deploying to IIS in AWS

                Comment

                  #9
                  Re: XBasic syntax for destructor method

                  Didn't the latest release only come out yesterday or today? Not everyone wants to immediately update due to compatibility concerns.

                  Anyway, I will be updating as David recommends, in a separate installation.

                  Comment

                    #10
                    Re: XBasic syntax for destructor method

                    Hey Adam,

                    That is a fair call.

                    Sorry would of been the a pre-release version, I have like a rolling 5 Versions of AA installed. One being the Official Release and the rest being 4 versions of the pre-releases.
                    Alex Collier

                    "The spread of computers and the Internet will put jobs in two categories. People who tell computers what to do, and people who are told by computers what to do"

                    AA Builds from 5221_5152 to Pre-releases >> Deploying to IIS in AWS

                    Comment

                      #11
                      Re: XBasic syntax for destructor method

                      No worries Alex. I am not that advanced yet as an Alpha user, but I'm working towards it! Thanks for the help.

                      Comment

                        #12
                        Re: XBasic syntax for destructor method

                        Originally posted by alexc View Post
                        I had tested in the latest release :) I will always to do this unless you sy what version i should be running it under
                        I was going by the release in your signature.

                        Tests should detail what version they are being run under. If the posted issue doesn't specify and the tester doesn't specify then the tests are essentially invalid.

                        Comment

                        Previous template Next
                        Working...
                        X