B4J Tutorial B4J HowTo's

Discussion in 'B4J Tutorials' started by rwblinn, Jan 3, 2014.

  1. rwblinn

    rwblinn Well-Known Member Licensed User

    Dear All,

    While learning and exploring B4J, captured B4J HowTos. The B4J HowTos are either from own experience or inspired by hints from the B4J forum (Thanks to All!).

    Please note, due to other commitments, the B4J HowTos are not regularly updated, information might not cover solutions possible with the latest B4J version.

    The content layout is generated by Look4How a Open Source Knowledge Management Application written in B4J

    IMPORTANT (June 07, 2018)
    The B4J HowTos are not online available anymore, but can be downloaded (v201806079). To install: unzip to a folder of choice and open index.htm.
    Updates are made on the fly and not posted, so check this post from time-to-time.

    Enjoy B4J (B4X) like I do.
     
    Last edited: Jun 7, 2018
  2. magoandroid

    magoandroid Member Licensed User

    Hi Robert,
    I logged on and I thank for doing so.

    Greetings
    MAgo
     
  3. Tom Christman

    Tom Christman Active Member Licensed User

    Thanks
     
    Touch likes this.
  4. rnbw

    rnbw New Member Licensed User


    Thank you Rob. It looks very interesting and clearly you have put a lot of work into it. I look forward to making use of it.
    RNBW
     
  5. CanguroCode

    CanguroCode Active Member Licensed User

    THANKS!! Any idea how to work with a webcam B4j?, No matter if you have to put some code in java
     
  6. JakeBullet70

    JakeBullet70 Well-Known Member Licensed User

    Thanks for this, nice.
     
  7. rwblinn

    rwblinn Well-Known Member Licensed User

    Hi All,

    several updates and example projects. See Edit 20140228 in Post #1.
     
    ellpopeb4a and Toley like this.
  8. MarcRB

    MarcRB Member Licensed User

    This is very helpfull.
    THANK YOU !!!
     
  9. hbruno

    hbruno Member Licensed User

    Hello Rob,
    is it possible to do the same thing with B4A code snippet ?
     
  10. Beja

    Beja Expert Licensed User

    Hi Rob,
    Thanks for the in-one-place information..
    I tried to run the access database example, but I got runtime error, saying ucanaccess jar not find, or something like this.
    Where is this file.

    Thanks in advance
     
  11. rwblinn

    rwblinn Well-Known Member Licensed User

    To run the access database example, ensure to copy the addtional libraries (packed in dbdrivermsaccess.zip part of the example zip) to your B4J additional library folder.

    Thank You
     
  12. rwblinn

    rwblinn Well-Known Member Licensed User

    Hi,

    I am considering - but probably later the year as my focus for now is on B4J.

    Thanks for the request.
     
    hbruno likes this.
  13. rwblinn

    rwblinn Well-Known Member Licensed User

    Hi All,

    several updates and example projects. See Edit 20140409 in Post #1.
     
  14. miquel

    miquel Member Licensed User

    Excellent information & tutorials!

    Thank you!
     
    rwblinn likes this.
  15. DonManfred

    DonManfred Expert Licensed User

    I just saw this thread and have had a look at the tutorials and the offlinetool... All the time i have not realized that this all are NOT FROM EREL :D

    WOW. GREAT WORK! Many thanx for the tutorials. I really appreciate them.
     
    rwblinn and Erel like this.
  16. BPak

    BPak Active Member Licensed User

    Found typo in the How to Export TableView to Microsoft Excel.

    cell.InitializeNumber(i, j, Row(j))
    cell.InitializeText(i, j, Row(j))

    InitializeNumber (Col AsInt, Row AsInt, Value AsDouble)
    InitializeText (Col AsInt, Row AsInt, Value AsString)

    The variables i and j need to be swapped in your code.
     
  17. rwblinn

    rwblinn Well-Known Member Licensed User

    Hi BPak,

    thanks for spotting. HOWTO has been corrected.
     
  18. Kiffi

    Kiffi Active Member Licensed User

    Hello Rob,

    some entries of the table of contents on the left side are slipped down one position

    "How to define a shortcut to show a Modal Form" shows "How to create a Modal Form dynamically"

    "How to disable the Close X on a Form" shows "How to define a shortcut to show a Modal Form"

    and so on...

    Thanks for your hard work! & Greetings ... Peter
     
  19. rwblinn

    rwblinn Well-Known Member Licensed User

    Hi Peter,

    thanks for the headsup [ had not noticed :-( ] and the feedback given.

    List corrected.

    Appreciated & Regards
    Rob
     
    Last edited: May 27, 2014
  20. FrenchDeveloper

    FrenchDeveloper Member Licensed User

    Hello Rob, very usefull ! Thanks a lot !
     
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