B4J Question Set Tag by code

hakha4 · Feb 8, 2018

Can't find answer in forum how to set tag property in code the way I wan't. I have a bunch of toggle buttons with a common event so I can check selected or not BUT I want to be able to set tag property to a specific togglebutton (from a Sqlite table,that part I can handle). Since tag will be used for other purposes can it be done with 'name' ? How to do this ?? Other way ???

Regards Håkan

Daestrum · Feb 8, 2018

B4X:

...
yourToggleButton.Tag = "myTag" ' to set the tag
...
Log(yourToggleButton.Tag) ' to read the tag

hakha4 · Feb 8, 2018

Thank's for reply. Maybe I was unclear. I need to identify a SPECIFIC togglebutton either from the control's name 'sw_01... 10 etc or from it's text property. Eg.
'find tooglebutton where name is like _01.. (best) OR 'find togglebutton where 'text = "something". In the tag property I'll then write a string (in this case command for setting a rf unit on or off)
Regards Håkan

Erel · Feb 8, 2018

Just uploaded a video tutorial that covers this topic (http://etp.b4x.com/):
There are many ways to solve it. Start with storing a custom type as the tag object. This will allow you to add any fields you like.

hakha4 · Feb 8, 2018

Thank's what video covers this? I'm at an airport with limited download capacity !!

Erel · Feb 8, 2018

Dynamic controls: http://etp.b4x.com/page/2

hakha4 · Feb 8, 2018

Thank's I'll dig in to it before take off!

hakha4 · Feb 9, 2018

Thank's to Erel's EXCELLENT video on dynamic control's I got a number of Togglebuttons in a pane and I can catch each button state and read values from typed data . When creating the buttons a value is saved in the MS_no variable for identifying each button (1,2,3..to number of buttons).
What I need to do is to set values for some other params saved in the Tag property to a SPECIFIC button after it's been created but how do I get the index from the button I wan't to set a value for ?
Eg. 'find MLS_no where value = ?' (and then set values for other variables)
I've tried a number of approaches but I don't really understand how to extract a specific value from a specific field from my

B4X:

Type buttondata(MLS_varname as String,MLS_location As String,code As String,MLS_no As Int)

Any Help appreciated

Erel · Feb 11, 2018

Add all the ButtonData objects to a list and then find the matching one:

B4X:

Sub GetButtonData(x As Int) As ButtonData
For Each bd As ButtonData In ListOfButtonDatas
 if bd.MLS_no = x Then Return bd
Next
Dim bd As ButtonData
Return bd 'return an uninitialized object if not found.
End Sub

B4J Question Set Tag by code

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