B4J Question B4J and validation controls.

[Eme Fibonacci]

After creating some tools with B4J I felt need for have validation components.

The idea is to create validators controls using CustomView. Controls similar to visual studio controls.

RequiredFieldValidator
CompareValidator
RangeValidator
RegularExpressionValidator
CustomValidator

You would think this useful?

Why am I asking? Do not reinvent the wheel.

Thanks for opinions.

 

[EnriqueGonzalez]

Hello!
Controlsfx library already has validation controls. (the 6th one on the list)
http://fxexperience.com/controlsfx/features/

 

[Eme Fibonacci]

Hello!
Controlsfx library already has validation controls. (the 6th one on the list)
http://fxexperience.com/controlsfx/features/

Hi, it seems very interesting.

How to integrate this with BJ4?

 

[EnriqueGonzalez]

Hi again!

It requires the use of In-line Java and its "simple" to implement, Yet it will be good if you study a bit of the controlsfx Javadocs.

http://controlsfx.bitbucket.org/
org.controlsfx.validation

Attached is an example that test if the Textfield contains a Double. The red Triangle marks that the Textbox is required.

Sorry forgot to mention that the example i took it from here:
http://stackoverflow.com/questions/29607080/textfield-component-validation-with-controls-fx

 

[Eme Fibonacci]

Thank you. I'll read the documentation.

I thought about creating codes like this and embarks them on a CustomView class.
So it could be used with BJ4 in visual design in super easy way.
But it seems that people don´t think it´s relevant.

 

[Erel]

You can use jControlsFX: https://www.b4x.com/android/forum/threads/controlsfx-library.50700/

Or with a simple TextField and CSSUtils:

Sub Process_Globals
   Private fx As JFX
   Private MainForm As Form
   Private tf As TextField
End Sub

Sub AppStart (Form1 As Form, Args() As String)
   MainForm = Form1
   MainForm.Show
   tf.Initialize("tf")
   MainForm.RootPane.AddNode(tf, 10, 10, 300, 50)
End Sub

Sub tf_TextChanged (Old As String, New As String)
   If IsNumber(New) = False Then
     CSSUtils.SetBorder(Sender, 2, fx.Colors.Red, 2)
   Else
     CSSUtils.SetBorder(Sender, 0, fx.Colors.Transparent, 0)
   End If
End Sub