B4J Tutorials

Hi to all
it's probably not the right way, so I'm asking you where I'm wrong
This Sub is in pgIndex (about is another code module)

Sub btnlogOff_click(e As BANanoEvent)
    If about.login =...

 

Ola

Say what? A render-less custom view? What on earth is this guy on about?

Well without overthinking what this is. A render-less custom view is basically a normal class, that is made into a...

 

Ola

Download

Attached please find the source code for the Nobel Prize Show WebApp developed using BVAD3. The source code of the app is inside the zip file. You will need additional...

 

XLUtils v1.13 adds support for converting workbooks to PDF. This is a Windows only feature and it relies on Excel being installed on the computer.

Exporting to PDF is a matter of...

 

Hi Members.

This is continuation of below post

My struggle and win with Advance Project Management of Saif

Hi Members, Warning: This a first post I have written so long that it may cure insomnia of members. I tagged this post as tutorial as it has guidance for solving errors as I found. First I will like to thank Saif to giving me this amazing product for free...

www.b4x.com

Trying to restore the given...

 

Hi Members,

Warning: This a first post I have written so long that it may cure insomnia of members. I tagged this post as tutorial as it has guidance for solving errors as I found.

First I will...

 

Sharing Experience ...


How to work banonowebix projects at jServer at least the client-side right / not the php server scripts... (caution!)

well when you open a project at...

 

It is mostly impossible to run non-notarized and unsigned apps on new versions of Mac.
MacSigner tool will help you with the various steps required to convert the app jar to a...

 

Ola

This tutorial is related to BVAD3, however the library can be used separately outside of the BVAD3 namespace. As it is rather a specialized area for web development, we have created an own...

 

Should I use SQLite as my web server database?

This has come up before and last week it came up again in the "Chit Chat" forum. The question has already been answered here before and there...

 

Tabular data can be converted to a Table object. Excel provides all kinds of nice features related to tables...

 

XLUtils v1.05 adds support for conditional formatting.

A conditional formatting element is made of the applied range and one or more rules. A rule is made of a formula and...

 

You are probably familiar with the online libraries index.
The table has a column for each of the platforms. This structure is useful as there are many cross platform libraries.

The task...

 

XLUtils v1.03 adds support for grouping rows and columns and for adding links.

Grouping is done with XLSheetWriter.GroupRows / Columns.
By default the expand button is positioned at...

 

Creating new workbooks based on existing workbooks saves a lot of work and also allows adding features that are not directly available in POI / XLUtils, such as charts.
Templates are regular...

 

Main concepts and reading MS Excel workbooks with XLUtils: https://www.b4x.com/android/forum/t...-and-write-ms-excel-workbooks.129969/#content

Writing workbooks is...

 

Ola

Download

Recently a WebApp built using BANano+Vuetify was created to enable one to explore Walts B4XGoodies.

The Creation -...

 

EDIT: If the message length is equal to the pad length, you have to pad to the next multiple. E.g. 16 bytes would be padded to 32 because one would not know how long the message was because the...

 

Here's an PHP/HTML example:

- create OTP credentials (including Base32 encoding)
- show a html page with these credentials and a generated QR-Code
- this code can be scanned and used with all...

 

I don't know if this counts as a tutorial but it might help someone. Please advise of any errors or omissions and I'll fix them.

Sometimes the value in a field in a resultset will be null.
This...